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usp10: Remove unnecessary casts in test suite.
[wine/hacks.git] / dlls / oleaut32 / variant.c
blob46d31e9b1eab22b7c735f51aafc9d5d95c80d151
1 /*
2 * VARIANT
3 *
4 * Copyright 1998 Jean-Claude Cote
5 * Copyright 2003 Jon Griffiths
6 * Copyright 2005 Daniel Remenak
7 * Copyright 2006 Google (Benjamin Arai)
8 *
9 * The alorithm for conversion from Julian days to day/month/year is based on
10 * that devised by Henry Fliegel, as implemented in PostgreSQL, which is
11 * Copyright 1994-7 Regents of the University of California
12 *
13 * This library is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * This library is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with this library; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 */
27
28 #include "config.h"
29
30 #include <string.h>
31 #include <stdlib.h>
32 #include <stdarg.h>
33
34 #define COBJMACROS
35 #define NONAMELESSUNION
36 #define NONAMELESSSTRUCT
37
38 #include "windef.h"
39 #include "winbase.h"
40 #include "wine/unicode.h"
41 #include "winerror.h"
42 #include "variant.h"
43 #include "wine/debug.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(variant);
46
47 const char* wine_vtypes[VT_CLSID+1] =
48 {
49 "VT_EMPTY","VT_NULL","VT_I2","VT_I4","VT_R4","VT_R8","VT_CY","VT_DATE",
50 "VT_BSTR","VT_DISPATCH","VT_ERROR","VT_BOOL","VT_VARIANT","VT_UNKNOWN",
51 "VT_DECIMAL","15","VT_I1","VT_UI1","VT_UI2","VT_UI4","VT_I8","VT_UI8",
52 "VT_INT","VT_UINT","VT_VOID","VT_HRESULT","VT_PTR","VT_SAFEARRAY",
53 "VT_CARRAY","VT_USERDEFINED","VT_LPSTR","VT_LPWSTR","32","33","34","35",
54 "VT_RECORD","VT_INT_PTR","VT_UINT_PTR","39","40","41","42","43","44","45",
55 "46","47","48","49","50","51","52","53","54","55","56","57","58","59","60",
56 "61","62","63","VT_FILETIME","VT_BLOB","VT_STREAM","VT_STORAGE",
57 "VT_STREAMED_OBJECT","VT_STORED_OBJECT","VT_BLOB_OBJECT","VT_CF","VT_CLSID"
58 };
59
60 const char* wine_vflags[16] =
61 {
62 "",
63 "|VT_VECTOR",
64 "|VT_ARRAY",
65 "|VT_VECTOR|VT_ARRAY",
66 "|VT_BYREF",
67 "|VT_VECTOR|VT_ARRAY",
68 "|VT_ARRAY|VT_BYREF",
69 "|VT_VECTOR|VT_ARRAY|VT_BYREF",
70 "|VT_HARDTYPE",
71 "|VT_VECTOR|VT_HARDTYPE",
72 "|VT_ARRAY|VT_HARDTYPE",
73 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
74 "|VT_BYREF|VT_HARDTYPE",
75 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
76 "|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
77 "|VT_VECTOR|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
78 };
79
80 /* Convert a variant from one type to another */
81 static inline HRESULT VARIANT_Coerce(VARIANTARG* pd, LCID lcid, USHORT wFlags,
82 VARIANTARG* ps, VARTYPE vt)
83 {
84 HRESULT res = DISP_E_TYPEMISMATCH;
85 VARTYPE vtFrom = V_TYPE(ps);
86 DWORD dwFlags = 0;
87
88 TRACE("(%p->(%s%s),0x%08lx,0x%04x,%p->(%s%s),%s%s)\n", pd, debugstr_VT(pd),
89 debugstr_VF(pd), lcid, wFlags, ps, debugstr_VT(ps), debugstr_VF(ps),
90 debugstr_vt(vt), debugstr_vf(vt));
91
92 if (vt == VT_BSTR || vtFrom == VT_BSTR)
93 {
94 /* All flags passed to low level function are only used for
95 * changing to or from strings. Map these here.
96 */
97 if (wFlags & VARIANT_LOCALBOOL)
98 dwFlags |= VAR_LOCALBOOL;
99 if (wFlags & VARIANT_CALENDAR_HIJRI)
100 dwFlags |= VAR_CALENDAR_HIJRI;
101 if (wFlags & VARIANT_CALENDAR_THAI)
102 dwFlags |= VAR_CALENDAR_THAI;
103 if (wFlags & VARIANT_CALENDAR_GREGORIAN)
104 dwFlags |= VAR_CALENDAR_GREGORIAN;
105 if (wFlags & VARIANT_NOUSEROVERRIDE)
106 dwFlags |= LOCALE_NOUSEROVERRIDE;
107 if (wFlags & VARIANT_USE_NLS)
108 dwFlags |= LOCALE_USE_NLS;
109 }
110
111 /* Map int/uint to i4/ui4 */
112 if (vt == VT_INT)
113 vt = VT_I4;
114 else if (vt == VT_UINT)
115 vt = VT_UI4;
116
117 if (vtFrom == VT_INT)
118 vtFrom = VT_I4;
119 else if (vtFrom == VT_UINT)
120 vtFrom = VT_UI4;
121
122 if (vt == vtFrom)
123 return VariantCopy(pd, ps);
124
125 if (wFlags & VARIANT_NOVALUEPROP && vtFrom == VT_DISPATCH && vt != VT_UNKNOWN)
126 {
127 /* VARIANT_NOVALUEPROP prevents IDispatch objects from being coerced by
128 * accessing the default object property.
129 */
130 return DISP_E_TYPEMISMATCH;
131 }
132
133 switch (vt)
134 {
135 case VT_EMPTY:
136 if (vtFrom == VT_NULL)
137 return DISP_E_TYPEMISMATCH;
138 /* ... Fall through */
139 case VT_NULL:
140 if (vtFrom <= VT_UINT && vtFrom != (VARTYPE)15 && vtFrom != VT_ERROR)
141 {
142 res = VariantClear( pd );
143 if (vt == VT_NULL && SUCCEEDED(res))
144 V_VT(pd) = VT_NULL;
145 }
146 return res;
147
148 case VT_I1:
149 switch (vtFrom)
150 {
151 case VT_EMPTY: V_I1(pd) = 0; return S_OK;
152 case VT_I2: return VarI1FromI2(V_I2(ps), &V_I1(pd));
153 case VT_I4: return VarI1FromI4(V_I4(ps), &V_I1(pd));
154 case VT_UI1: V_I1(pd) = V_UI1(ps); return S_OK;
155 case VT_UI2: return VarI1FromUI2(V_UI2(ps), &V_I1(pd));
156 case VT_UI4: return VarI1FromUI4(V_UI4(ps), &V_I1(pd));
157 case VT_I8: return VarI1FromI8(V_I8(ps), &V_I1(pd));
158 case VT_UI8: return VarI1FromUI8(V_UI8(ps), &V_I1(pd));
159 case VT_R4: return VarI1FromR4(V_R4(ps), &V_I1(pd));
160 case VT_R8: return VarI1FromR8(V_R8(ps), &V_I1(pd));
161 case VT_DATE: return VarI1FromDate(V_DATE(ps), &V_I1(pd));
162 case VT_BOOL: return VarI1FromBool(V_BOOL(ps), &V_I1(pd));
163 case VT_CY: return VarI1FromCy(V_CY(ps), &V_I1(pd));
164 case VT_DECIMAL: return VarI1FromDec(&V_DECIMAL(ps), &V_I1(pd) );
165 case VT_DISPATCH: return VarI1FromDisp(V_DISPATCH(ps), lcid, &V_I1(pd) );
166 case VT_BSTR: return VarI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_I1(pd) );
167 }
168 break;
169
170 case VT_I2:
171 switch (vtFrom)
172 {
173 case VT_EMPTY: V_I2(pd) = 0; return S_OK;
174 case VT_I1: return VarI2FromI1(V_I1(ps), &V_I2(pd));
175 case VT_I4: return VarI2FromI4(V_I4(ps), &V_I2(pd));
176 case VT_UI1: return VarI2FromUI1(V_UI1(ps), &V_I2(pd));
177 case VT_UI2: V_I2(pd) = V_UI2(ps); return S_OK;
178 case VT_UI4: return VarI2FromUI4(V_UI4(ps), &V_I2(pd));
179 case VT_I8: return VarI2FromI8(V_I8(ps), &V_I2(pd));
180 case VT_UI8: return VarI2FromUI8(V_UI8(ps), &V_I2(pd));
181 case VT_R4: return VarI2FromR4(V_R4(ps), &V_I2(pd));
182 case VT_R8: return VarI2FromR8(V_R8(ps), &V_I2(pd));
183 case VT_DATE: return VarI2FromDate(V_DATE(ps), &V_I2(pd));
184 case VT_BOOL: return VarI2FromBool(V_BOOL(ps), &V_I2(pd));
185 case VT_CY: return VarI2FromCy(V_CY(ps), &V_I2(pd));
186 case VT_DECIMAL: return VarI2FromDec(&V_DECIMAL(ps), &V_I2(pd));
187 case VT_DISPATCH: return VarI2FromDisp(V_DISPATCH(ps), lcid, &V_I2(pd));
188 case VT_BSTR: return VarI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_I2(pd));
189 }
190 break;
191
192 case VT_I4:
193 switch (vtFrom)
194 {
195 case VT_EMPTY: V_I4(pd) = 0; return S_OK;
196 case VT_I1: return VarI4FromI1(V_I1(ps), &V_I4(pd));
197 case VT_I2: return VarI4FromI2(V_I2(ps), &V_I4(pd));
198 case VT_UI1: return VarI4FromUI1(V_UI1(ps), &V_I4(pd));
199 case VT_UI2: return VarI4FromUI2(V_UI2(ps), &V_I4(pd));
200 case VT_UI4: V_I4(pd) = V_UI4(ps); return S_OK;
201 case VT_I8: return VarI4FromI8(V_I8(ps), &V_I4(pd));
202 case VT_UI8: return VarI4FromUI8(V_UI8(ps), &V_I4(pd));
203 case VT_R4: return VarI4FromR4(V_R4(ps), &V_I4(pd));
204 case VT_R8: return VarI4FromR8(V_R8(ps), &V_I4(pd));
205 case VT_DATE: return VarI4FromDate(V_DATE(ps), &V_I4(pd));
206 case VT_BOOL: return VarI4FromBool(V_BOOL(ps), &V_I4(pd));
207 case VT_CY: return VarI4FromCy(V_CY(ps), &V_I4(pd));
208 case VT_DECIMAL: return VarI4FromDec(&V_DECIMAL(ps), &V_I4(pd));
209 case VT_DISPATCH: return VarI4FromDisp(V_DISPATCH(ps), lcid, &V_I4(pd));
210 case VT_BSTR: return VarI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_I4(pd));
211 }
212 break;
213
214 case VT_UI1:
215 switch (vtFrom)
216 {
217 case VT_EMPTY: V_UI1(pd) = 0; return S_OK;
218 case VT_I1: V_UI1(pd) = V_I1(ps); return S_OK;
219 case VT_I2: return VarUI1FromI2(V_I2(ps), &V_UI1(pd));
220 case VT_I4: return VarUI1FromI4(V_I4(ps), &V_UI1(pd));
221 case VT_UI2: return VarUI1FromUI2(V_UI2(ps), &V_UI1(pd));
222 case VT_UI4: return VarUI1FromUI4(V_UI4(ps), &V_UI1(pd));
223 case VT_I8: return VarUI1FromI8(V_I8(ps), &V_UI1(pd));
224 case VT_UI8: return VarUI1FromUI8(V_UI8(ps), &V_UI1(pd));
225 case VT_R4: return VarUI1FromR4(V_R4(ps), &V_UI1(pd));
226 case VT_R8: return VarUI1FromR8(V_R8(ps), &V_UI1(pd));
227 case VT_DATE: return VarUI1FromDate(V_DATE(ps), &V_UI1(pd));
228 case VT_BOOL: return VarUI1FromBool(V_BOOL(ps), &V_UI1(pd));
229 case VT_CY: return VarUI1FromCy(V_CY(ps), &V_UI1(pd));
230 case VT_DECIMAL: return VarUI1FromDec(&V_DECIMAL(ps), &V_UI1(pd));
231 case VT_DISPATCH: return VarUI1FromDisp(V_DISPATCH(ps), lcid, &V_UI1(pd));
232 case VT_BSTR: return VarUI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI1(pd));
233 }
234 break;
235
236 case VT_UI2:
237 switch (vtFrom)
238 {
239 case VT_EMPTY: V_UI2(pd) = 0; return S_OK;
240 case VT_I1: return VarUI2FromI1(V_I1(ps), &V_UI2(pd));
241 case VT_I2: V_UI2(pd) = V_I2(ps); return S_OK;
242 case VT_I4: return VarUI2FromI4(V_I4(ps), &V_UI2(pd));
243 case VT_UI1: return VarUI2FromUI1(V_UI1(ps), &V_UI2(pd));
244 case VT_UI4: return VarUI2FromUI4(V_UI4(ps), &V_UI2(pd));
245 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
246 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
247 case VT_R4: return VarUI2FromR4(V_R4(ps), &V_UI2(pd));
248 case VT_R8: return VarUI2FromR8(V_R8(ps), &V_UI2(pd));
249 case VT_DATE: return VarUI2FromDate(V_DATE(ps), &V_UI2(pd));
250 case VT_BOOL: return VarUI2FromBool(V_BOOL(ps), &V_UI2(pd));
251 case VT_CY: return VarUI2FromCy(V_CY(ps), &V_UI2(pd));
252 case VT_DECIMAL: return VarUI2FromDec(&V_DECIMAL(ps), &V_UI2(pd));
253 case VT_DISPATCH: return VarUI2FromDisp(V_DISPATCH(ps), lcid, &V_UI2(pd));
254 case VT_BSTR: return VarUI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI2(pd));
255 }
256 break;
257
258 case VT_UI4:
259 switch (vtFrom)
260 {
261 case VT_EMPTY: V_UI4(pd) = 0; return S_OK;
262 case VT_I1: return VarUI4FromI1(V_I1(ps), &V_UI4(pd));
263 case VT_I2: return VarUI4FromI2(V_I2(ps), &V_UI4(pd));
264 case VT_I4: V_UI4(pd) = V_I4(ps); return S_OK;
265 case VT_UI1: return VarUI4FromUI1(V_UI1(ps), &V_UI4(pd));
266 case VT_UI2: return VarUI4FromUI2(V_UI2(ps), &V_UI4(pd));
267 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
268 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
269 case VT_R4: return VarUI4FromR4(V_R4(ps), &V_UI4(pd));
270 case VT_R8: return VarUI4FromR8(V_R8(ps), &V_UI4(pd));
271 case VT_DATE: return VarUI4FromDate(V_DATE(ps), &V_UI4(pd));
272 case VT_BOOL: return VarUI4FromBool(V_BOOL(ps), &V_UI4(pd));
273 case VT_CY: return VarUI4FromCy(V_CY(ps), &V_UI4(pd));
274 case VT_DECIMAL: return VarUI4FromDec(&V_DECIMAL(ps), &V_UI4(pd));
275 case VT_DISPATCH: return VarUI4FromDisp(V_DISPATCH(ps), lcid, &V_UI4(pd));
276 case VT_BSTR: return VarUI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI4(pd));
277 }
278 break;
279
280 case VT_UI8:
281 switch (vtFrom)
282 {
283 case VT_EMPTY: V_UI8(pd) = 0; return S_OK;
284 case VT_I4: if (V_I4(ps) < 0) return DISP_E_OVERFLOW; V_UI8(pd) = V_I4(ps); return S_OK;
285 case VT_I1: return VarUI8FromI1(V_I1(ps), &V_UI8(pd));
286 case VT_I2: return VarUI8FromI2(V_I2(ps), &V_UI8(pd));
287 case VT_UI1: return VarUI8FromUI1(V_UI1(ps), &V_UI8(pd));
288 case VT_UI2: return VarUI8FromUI2(V_UI2(ps), &V_UI8(pd));
289 case VT_UI4: return VarUI8FromUI4(V_UI4(ps), &V_UI8(pd));
290 case VT_I8: V_UI8(pd) = V_I8(ps); return S_OK;
291 case VT_R4: return VarUI8FromR4(V_R4(ps), &V_UI8(pd));
292 case VT_R8: return VarUI8FromR8(V_R8(ps), &V_UI8(pd));
293 case VT_DATE: return VarUI8FromDate(V_DATE(ps), &V_UI8(pd));
294 case VT_BOOL: return VarUI8FromBool(V_BOOL(ps), &V_UI8(pd));
295 case VT_CY: return VarUI8FromCy(V_CY(ps), &V_UI8(pd));
296 case VT_DECIMAL: return VarUI8FromDec(&V_DECIMAL(ps), &V_UI8(pd));
297 case VT_DISPATCH: return VarUI8FromDisp(V_DISPATCH(ps), lcid, &V_UI8(pd));
298 case VT_BSTR: return VarUI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI8(pd));
299 }
300 break;
301
302 case VT_I8:
303 switch (vtFrom)
304 {
305 case VT_EMPTY: V_I8(pd) = 0; return S_OK;
306 case VT_I4: V_I8(pd) = V_I4(ps); return S_OK;
307 case VT_I1: return VarI8FromI1(V_I1(ps), &V_I8(pd));
308 case VT_I2: return VarI8FromI2(V_I2(ps), &V_I8(pd));
309 case VT_UI1: return VarI8FromUI1(V_UI1(ps), &V_I8(pd));
310 case VT_UI2: return VarI8FromUI2(V_UI2(ps), &V_I8(pd));
311 case VT_UI4: return VarI8FromUI4(V_UI4(ps), &V_I8(pd));
312 case VT_UI8: V_I8(pd) = V_UI8(ps); return S_OK;
313 case VT_R4: return VarI8FromR4(V_R4(ps), &V_I8(pd));
314 case VT_R8: return VarI8FromR8(V_R8(ps), &V_I8(pd));
315 case VT_DATE: return VarI8FromDate(V_DATE(ps), &V_I8(pd));
316 case VT_BOOL: return VarI8FromBool(V_BOOL(ps), &V_I8(pd));
317 case VT_CY: return VarI8FromCy(V_CY(ps), &V_I8(pd));
318 case VT_DECIMAL: return VarI8FromDec(&V_DECIMAL(ps), &V_I8(pd));
319 case VT_DISPATCH: return VarI8FromDisp(V_DISPATCH(ps), lcid, &V_I8(pd));
320 case VT_BSTR: return VarI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_I8(pd));
321 }
322 break;
323
324 case VT_R4:
325 switch (vtFrom)
326 {
327 case VT_EMPTY: V_R4(pd) = 0.0f; return S_OK;
328 case VT_I1: return VarR4FromI1(V_I1(ps), &V_R4(pd));
329 case VT_I2: return VarR4FromI2(V_I2(ps), &V_R4(pd));
330 case VT_I4: return VarR4FromI4(V_I4(ps), &V_R4(pd));
331 case VT_UI1: return VarR4FromUI1(V_UI1(ps), &V_R4(pd));
332 case VT_UI2: return VarR4FromUI2(V_UI2(ps), &V_R4(pd));
333 case VT_UI4: return VarR4FromUI4(V_UI4(ps), &V_R4(pd));
334 case VT_I8: return VarR4FromI8(V_I8(ps), &V_R4(pd));
335 case VT_UI8: return VarR4FromUI8(V_UI8(ps), &V_R4(pd));
336 case VT_R8: return VarR4FromR8(V_R8(ps), &V_R4(pd));
337 case VT_DATE: return VarR4FromDate(V_DATE(ps), &V_R4(pd));
338 case VT_BOOL: return VarR4FromBool(V_BOOL(ps), &V_R4(pd));
339 case VT_CY: return VarR4FromCy(V_CY(ps), &V_R4(pd));
340 case VT_DECIMAL: return VarR4FromDec(&V_DECIMAL(ps), &V_R4(pd));
341 case VT_DISPATCH: return VarR4FromDisp(V_DISPATCH(ps), lcid, &V_R4(pd));
342 case VT_BSTR: return VarR4FromStr(V_BSTR(ps), lcid, dwFlags, &V_R4(pd));
343 }
344 break;
345
346 case VT_R8:
347 switch (vtFrom)
348 {
349 case VT_EMPTY: V_R8(pd) = 0.0; return S_OK;
350 case VT_I1: return VarR8FromI1(V_I1(ps), &V_R8(pd));
351 case VT_I2: return VarR8FromI2(V_I2(ps), &V_R8(pd));
352 case VT_I4: return VarR8FromI4(V_I4(ps), &V_R8(pd));
353 case VT_UI1: return VarR8FromUI1(V_UI1(ps), &V_R8(pd));
354 case VT_UI2: return VarR8FromUI2(V_UI2(ps), &V_R8(pd));
355 case VT_UI4: return VarR8FromUI4(V_UI4(ps), &V_R8(pd));
356 case VT_I8: return VarR8FromI8(V_I8(ps), &V_R8(pd));
357 case VT_UI8: return VarR8FromUI8(V_UI8(ps), &V_R8(pd));
358 case VT_R4: return VarR8FromR4(V_R4(ps), &V_R8(pd));
359 case VT_DATE: return VarR8FromDate(V_DATE(ps), &V_R8(pd));
360 case VT_BOOL: return VarR8FromBool(V_BOOL(ps), &V_R8(pd));
361 case VT_CY: return VarR8FromCy(V_CY(ps), &V_R8(pd));
362 case VT_DECIMAL: return VarR8FromDec(&V_DECIMAL(ps), &V_R8(pd));
363 case VT_DISPATCH: return VarR8FromDisp(V_DISPATCH(ps), lcid, &V_R8(pd));
364 case VT_BSTR: return VarR8FromStr(V_BSTR(ps), lcid, dwFlags, &V_R8(pd));
365 }
366 break;
367
368 case VT_DATE:
369 switch (vtFrom)
370 {
371 case VT_EMPTY: V_DATE(pd) = 0.0; return S_OK;
372 case VT_I1: return VarDateFromI1(V_I1(ps), &V_DATE(pd));
373 case VT_I2: return VarDateFromI2(V_I2(ps), &V_DATE(pd));
374 case VT_I4: return VarDateFromI4(V_I4(ps), &V_DATE(pd));
375 case VT_UI1: return VarDateFromUI1(V_UI1(ps), &V_DATE(pd));
376 case VT_UI2: return VarDateFromUI2(V_UI2(ps), &V_DATE(pd));
377 case VT_UI4: return VarDateFromUI4(V_UI4(ps), &V_DATE(pd));
378 case VT_I8: return VarDateFromI8(V_I8(ps), &V_DATE(pd));
379 case VT_UI8: return VarDateFromUI8(V_UI8(ps), &V_DATE(pd));
380 case VT_R4: return VarDateFromR4(V_R4(ps), &V_DATE(pd));
381 case VT_R8: return VarDateFromR8(V_R8(ps), &V_DATE(pd));
382 case VT_BOOL: return VarDateFromBool(V_BOOL(ps), &V_DATE(pd));
383 case VT_CY: return VarDateFromCy(V_CY(ps), &V_DATE(pd));
384 case VT_DECIMAL: return VarDateFromDec(&V_DECIMAL(ps), &V_DATE(pd));
385 case VT_DISPATCH: return VarDateFromDisp(V_DISPATCH(ps), lcid, &V_DATE(pd));
386 case VT_BSTR: return VarDateFromStr(V_BSTR(ps), lcid, dwFlags, &V_DATE(pd));
387 }
388 break;
389
390 case VT_BOOL:
391 switch (vtFrom)
392 {
393 case VT_EMPTY: V_BOOL(pd) = 0; return S_OK;
394 case VT_I1: return VarBoolFromI1(V_I1(ps), &V_BOOL(pd));
395 case VT_I2: return VarBoolFromI2(V_I2(ps), &V_BOOL(pd));
396 case VT_I4: return VarBoolFromI4(V_I4(ps), &V_BOOL(pd));
397 case VT_UI1: return VarBoolFromUI1(V_UI1(ps), &V_BOOL(pd));
398 case VT_UI2: return VarBoolFromUI2(V_UI2(ps), &V_BOOL(pd));
399 case VT_UI4: return VarBoolFromUI4(V_UI4(ps), &V_BOOL(pd));
400 case VT_I8: return VarBoolFromI8(V_I8(ps), &V_BOOL(pd));
401 case VT_UI8: return VarBoolFromUI8(V_UI8(ps), &V_BOOL(pd));
402 case VT_R4: return VarBoolFromR4(V_R4(ps), &V_BOOL(pd));
403 case VT_R8: return VarBoolFromR8(V_R8(ps), &V_BOOL(pd));
404 case VT_DATE: return VarBoolFromDate(V_DATE(ps), &V_BOOL(pd));
405 case VT_CY: return VarBoolFromCy(V_CY(ps), &V_BOOL(pd));
406 case VT_DECIMAL: return VarBoolFromDec(&V_DECIMAL(ps), &V_BOOL(pd));
407 case VT_DISPATCH: return VarBoolFromDisp(V_DISPATCH(ps), lcid, &V_BOOL(pd));
408 case VT_BSTR: return VarBoolFromStr(V_BSTR(ps), lcid, dwFlags, &V_BOOL(pd));
409 }
410 break;
411
412 case VT_BSTR:
413 switch (vtFrom)
414 {
415 case VT_EMPTY:
416 V_BSTR(pd) = SysAllocStringLen(NULL, 0);
417 return V_BSTR(pd) ? S_OK : E_OUTOFMEMORY;
418 case VT_BOOL:
419 if (wFlags & (VARIANT_ALPHABOOL|VARIANT_LOCALBOOL))
420 return VarBstrFromBool(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
421 return VarBstrFromI2(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
422 case VT_I1: return VarBstrFromI1(V_I1(ps), lcid, dwFlags, &V_BSTR(pd));
423 case VT_I2: return VarBstrFromI2(V_I2(ps), lcid, dwFlags, &V_BSTR(pd));
424 case VT_I4: return VarBstrFromI4(V_I4(ps), lcid, dwFlags, &V_BSTR(pd));
425 case VT_UI1: return VarBstrFromUI1(V_UI1(ps), lcid, dwFlags, &V_BSTR(pd));
426 case VT_UI2: return VarBstrFromUI2(V_UI2(ps), lcid, dwFlags, &V_BSTR(pd));
427 case VT_UI4: return VarBstrFromUI4(V_UI4(ps), lcid, dwFlags, &V_BSTR(pd));
428 case VT_I8: return VarBstrFromI8(V_I8(ps), lcid, dwFlags, &V_BSTR(pd));
429 case VT_UI8: return VarBstrFromUI8(V_UI8(ps), lcid, dwFlags, &V_BSTR(pd));
430 case VT_R4: return VarBstrFromR4(V_R4(ps), lcid, dwFlags, &V_BSTR(pd));
431 case VT_R8: return VarBstrFromR8(V_R8(ps), lcid, dwFlags, &V_BSTR(pd));
432 case VT_DATE: return VarBstrFromDate(V_DATE(ps), lcid, dwFlags, &V_BSTR(pd));
433 case VT_CY: return VarBstrFromCy(V_CY(ps), lcid, dwFlags, &V_BSTR(pd));
434 case VT_DECIMAL: return VarBstrFromDec(&V_DECIMAL(ps), lcid, dwFlags, &V_BSTR(pd));
435 case VT_DISPATCH: return VarBstrFromDisp(V_DISPATCH(ps), lcid, dwFlags, &V_BSTR(pd));
436 }
437 break;
438
439 case VT_CY:
440 switch (vtFrom)
441 {
442 case VT_EMPTY: V_CY(pd).int64 = 0; return S_OK;
443 case VT_I1: return VarCyFromI1(V_I1(ps), &V_CY(pd));
444 case VT_I2: return VarCyFromI2(V_I2(ps), &V_CY(pd));
445 case VT_I4: return VarCyFromI4(V_I4(ps), &V_CY(pd));
446 case VT_UI1: return VarCyFromUI1(V_UI1(ps), &V_CY(pd));
447 case VT_UI2: return VarCyFromUI2(V_UI2(ps), &V_CY(pd));
448 case VT_UI4: return VarCyFromUI4(V_UI4(ps), &V_CY(pd));
449 case VT_I8: return VarCyFromI8(V_I8(ps), &V_CY(pd));
450 case VT_UI8: return VarCyFromUI8(V_UI8(ps), &V_CY(pd));
451 case VT_R4: return VarCyFromR4(V_R4(ps), &V_CY(pd));
452 case VT_R8: return VarCyFromR8(V_R8(ps), &V_CY(pd));
453 case VT_DATE: return VarCyFromDate(V_DATE(ps), &V_CY(pd));
454 case VT_BOOL: return VarCyFromBool(V_BOOL(ps), &V_CY(pd));
455 case VT_DECIMAL: return VarCyFromDec(&V_DECIMAL(ps), &V_CY(pd));
456 case VT_DISPATCH: return VarCyFromDisp(V_DISPATCH(ps), lcid, &V_CY(pd));
457 case VT_BSTR: return VarCyFromStr(V_BSTR(ps), lcid, dwFlags, &V_CY(pd));
458 }
459 break;
460
461 case VT_DECIMAL:
462 switch (vtFrom)
463 {
464 case VT_EMPTY:
465 case VT_BOOL:
466 DEC_SIGNSCALE(&V_DECIMAL(pd)) = SIGNSCALE(DECIMAL_POS,0);
467 DEC_HI32(&V_DECIMAL(pd)) = 0;
468 DEC_MID32(&V_DECIMAL(pd)) = 0;
469 /* VarDecFromBool() coerces to -1/0, ChangeTypeEx() coerces to 1/0.
470 * VT_NULL and VT_EMPTY always give a 0 value.
471 */
472 DEC_LO32(&V_DECIMAL(pd)) = vtFrom == VT_BOOL && V_BOOL(ps) ? 1 : 0;
473 return S_OK;
474 case VT_I1: return VarDecFromI1(V_I1(ps), &V_DECIMAL(pd));
475 case VT_I2: return VarDecFromI2(V_I2(ps), &V_DECIMAL(pd));
476 case VT_I4: return VarDecFromI4(V_I4(ps), &V_DECIMAL(pd));
477 case VT_UI1: return VarDecFromUI1(V_UI1(ps), &V_DECIMAL(pd));
478 case VT_UI2: return VarDecFromUI2(V_UI2(ps), &V_DECIMAL(pd));
479 case VT_UI4: return VarDecFromUI4(V_UI4(ps), &V_DECIMAL(pd));
480 case VT_I8: return VarDecFromI8(V_I8(ps), &V_DECIMAL(pd));
481 case VT_UI8: return VarDecFromUI8(V_UI8(ps), &V_DECIMAL(pd));
482 case VT_R4: return VarDecFromR4(V_R4(ps), &V_DECIMAL(pd));
483 case VT_R8: return VarDecFromR8(V_R8(ps), &V_DECIMAL(pd));
484 case VT_DATE: return VarDecFromDate(V_DATE(ps), &V_DECIMAL(pd));
485 case VT_CY: return VarDecFromCy(V_CY(ps), &V_DECIMAL(pd));
486 case VT_DISPATCH: return VarDecFromDisp(V_DISPATCH(ps), lcid, &V_DECIMAL(pd));
487 case VT_BSTR: return VarDecFromStr(V_BSTR(ps), lcid, dwFlags, &V_DECIMAL(pd));
488 }
489 break;
490
491 case VT_UNKNOWN:
492 switch (vtFrom)
493 {
494 case VT_DISPATCH:
495 if (V_DISPATCH(ps) == NULL)
496 V_UNKNOWN(pd) = NULL;
497 else
498 res = IDispatch_QueryInterface(V_DISPATCH(ps), &IID_IUnknown, (LPVOID*)&V_UNKNOWN(pd));
499 break;
500 }
501 break;
502
503 case VT_DISPATCH:
504 switch (vtFrom)
505 {
506 case VT_UNKNOWN:
507 if (V_UNKNOWN(ps) == NULL)
508 V_DISPATCH(pd) = NULL;
509 else
510 res = IUnknown_QueryInterface(V_UNKNOWN(ps), &IID_IDispatch, (LPVOID*)&V_DISPATCH(pd));
511 break;
512 }
513 break;
514
515 case VT_RECORD:
516 break;
517 }
518 return res;
519 }
520
521 /* Coerce to/from an array */
522 static inline HRESULT VARIANT_CoerceArray(VARIANTARG* pd, VARIANTARG* ps, VARTYPE vt)
523 {
524 if (vt == VT_BSTR && V_VT(ps) == (VT_ARRAY|VT_UI1))
525 return BstrFromVector(V_ARRAY(ps), &V_BSTR(pd));
526
527 if (V_VT(ps) == VT_BSTR && vt == (VT_ARRAY|VT_UI1))
528 return VectorFromBstr(V_BSTR(ps), &V_ARRAY(ps));
529
530 if (V_VT(ps) == vt)
531 return SafeArrayCopy(V_ARRAY(ps), &V_ARRAY(pd));
532
533 return DISP_E_TYPEMISMATCH;
534 }
535
536 /******************************************************************************
537 * Check if a variants type is valid.
538 */
539 static inline HRESULT VARIANT_ValidateType(VARTYPE vt)
540 {
541 VARTYPE vtExtra = vt & VT_EXTRA_TYPE;
542
543 vt &= VT_TYPEMASK;
544
545 if (!(vtExtra & (VT_VECTOR|VT_RESERVED)))
546 {
547 if (vt < VT_VOID || vt == VT_RECORD || vt == VT_CLSID)
548 {
549 if ((vtExtra & (VT_BYREF|VT_ARRAY)) && vt <= VT_NULL)
550 return DISP_E_BADVARTYPE;
551 if (vt != (VARTYPE)15)
552 return S_OK;
553 }
554 }
555 return DISP_E_BADVARTYPE;
556 }
557
558 /******************************************************************************
559 * VariantInit [OLEAUT32.8]
560 *
561 * Initialise a variant.
562 *
563 * PARAMS
564 * pVarg [O] Variant to initialise
565 *
566 * RETURNS
567 * Nothing.
568 *
569 * NOTES
570 * This function simply sets the type of the variant to VT_EMPTY. It does not
571 * free any existing value, use VariantClear() for that.
572 */
573 void WINAPI VariantInit(VARIANTARG* pVarg)
574 {
575 TRACE("(%p)\n", pVarg);
576
577 V_VT(pVarg) = VT_EMPTY; /* Native doesn't set any other fields */
578 }
579
580 /******************************************************************************
581 * VariantClear [OLEAUT32.9]
582 *
583 * Clear a variant.
584 *
585 * PARAMS
586 * pVarg [I/O] Variant to clear
587 *
588 * RETURNS
589 * Success: S_OK. Any previous value in pVarg is freed and its type is set to VT_EMPTY.
590 * Failure: DISP_E_BADVARTYPE, if the variant is a not a valid variant type.
591 */
592 HRESULT WINAPI VariantClear(VARIANTARG* pVarg)
593 {
594 HRESULT hres = S_OK;
595
596 TRACE("(%p->(%s%s))\n", pVarg, debugstr_VT(pVarg), debugstr_VF(pVarg));
597
598 hres = VARIANT_ValidateType(V_VT(pVarg));
599
600 if (SUCCEEDED(hres))
601 {
602 if (!V_ISBYREF(pVarg))
603 {
604 if (V_ISARRAY(pVarg) || V_VT(pVarg) == VT_SAFEARRAY)
605 {
606 if (V_ARRAY(pVarg))
607 hres = SafeArrayDestroy(V_ARRAY(pVarg));
608 }
609 else if (V_VT(pVarg) == VT_BSTR)
610 {
611 if (V_BSTR(pVarg))
612 SysFreeString(V_BSTR(pVarg));
613 }
614 else if (V_VT(pVarg) == VT_RECORD)
615 {
616 struct __tagBRECORD* pBr = &V_UNION(pVarg,brecVal);
617 if (pBr->pRecInfo)
618 {
619 IRecordInfo_RecordClear(pBr->pRecInfo, pBr->pvRecord);
620 IRecordInfo_Release(pBr->pRecInfo);
621 }
622 }
623 else if (V_VT(pVarg) == VT_DISPATCH ||
624 V_VT(pVarg) == VT_UNKNOWN)
625 {
626 if (V_UNKNOWN(pVarg))
627 IUnknown_Release(V_UNKNOWN(pVarg));
628 }
629 }
630 V_VT(pVarg) = VT_EMPTY;
631 }
632 return hres;
633 }
634
635 /******************************************************************************
636 * Copy an IRecordInfo object contained in a variant.
637 */
638 static HRESULT VARIANT_CopyIRecordInfo(struct __tagBRECORD* pBr)
639 {
640 HRESULT hres = S_OK;
641
642 if (pBr->pRecInfo)
643 {
644 ULONG ulSize;
645
646 hres = IRecordInfo_GetSize(pBr->pRecInfo, &ulSize);
647 if (SUCCEEDED(hres))
648 {
649 PVOID pvRecord = HeapAlloc(GetProcessHeap(), 0, ulSize);
650 if (!pvRecord)
651 hres = E_OUTOFMEMORY;
652 else
653 {
654 memcpy(pvRecord, pBr->pvRecord, ulSize);
655 pBr->pvRecord = pvRecord;
656
657 hres = IRecordInfo_RecordCopy(pBr->pRecInfo, pvRecord, pvRecord);
658 if (SUCCEEDED(hres))
659 IRecordInfo_AddRef(pBr->pRecInfo);
660 }
661 }
662 }
663 else if (pBr->pvRecord)
664 hres = E_INVALIDARG;
665 return hres;
666 }
667
668 /******************************************************************************
669 * VariantCopy [OLEAUT32.10]
670 *
671 * Copy a variant.
672 *
673 * PARAMS
674 * pvargDest [O] Destination for copy
675 * pvargSrc [I] Source variant to copy
676 *
677 * RETURNS
678 * Success: S_OK. pvargDest contains a copy of pvargSrc.
679 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid type.
680 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
681 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
682 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
683 *
684 * NOTES
685 * - If pvargSrc == pvargDest, this function does nothing, and succeeds if
686 * pvargSrc is valid. Otherwise, pvargDest is always cleared using
687 * VariantClear() before pvargSrc is copied to it. If clearing pvargDest
688 * fails, so does this function.
689 * - VT_CLSID is a valid type type for pvargSrc, but not for pvargDest.
690 * - For by-value non-intrinsic types, a deep copy is made, i.e. The whole value
691 * is copied rather than just any pointers to it.
692 * - For by-value object types the object pointer is copied and the objects
693 * reference count increased using IUnknown_AddRef().
694 * - For all by-reference types, only the referencing pointer is copied.
695 */
696 HRESULT WINAPI VariantCopy(VARIANTARG* pvargDest, VARIANTARG* pvargSrc)
697 {
698 HRESULT hres = S_OK;
699
700 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
701 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
702 debugstr_VF(pvargSrc));
703
704 if (V_TYPE(pvargSrc) == VT_CLSID || /* VT_CLSID is a special case */
705 FAILED(VARIANT_ValidateType(V_VT(pvargSrc))))
706 return DISP_E_BADVARTYPE;
707
708 if (pvargSrc != pvargDest &&
709 SUCCEEDED(hres = VariantClear(pvargDest)))
710 {
711 *pvargDest = *pvargSrc; /* Shallow copy the value */
712
713 if (!V_ISBYREF(pvargSrc))
714 {
715 if (V_ISARRAY(pvargSrc))
716 {
717 if (V_ARRAY(pvargSrc))
718 hres = SafeArrayCopy(V_ARRAY(pvargSrc), &V_ARRAY(pvargDest));
719 }
720 else if (V_VT(pvargSrc) == VT_BSTR)
721 {
722 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)V_BSTR(pvargSrc), SysStringByteLen(V_BSTR(pvargSrc)));
723 if (!V_BSTR(pvargDest))
724 {
725 TRACE("!V_BSTR(pvargDest), SysAllocStringByteLen() failed to allocate %d bytes\n", SysStringByteLen(V_BSTR(pvargSrc)));
726 hres = E_OUTOFMEMORY;
727 }
728 }
729 else if (V_VT(pvargSrc) == VT_RECORD)
730 {
731 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
732 }
733 else if (V_VT(pvargSrc) == VT_DISPATCH ||
734 V_VT(pvargSrc) == VT_UNKNOWN)
735 {
736 if (V_UNKNOWN(pvargSrc))
737 IUnknown_AddRef(V_UNKNOWN(pvargSrc));
738 }
739 }
740 }
741 return hres;
742 }
743
744 /* Return the byte size of a variants data */
745 static inline size_t VARIANT_DataSize(const VARIANT* pv)
746 {
747 switch (V_TYPE(pv))
748 {
749 case VT_I1:
750 case VT_UI1: return sizeof(BYTE);
751 case VT_I2:
752 case VT_UI2: return sizeof(SHORT);
753 case VT_INT:
754 case VT_UINT:
755 case VT_I4:
756 case VT_UI4: return sizeof(LONG);
757 case VT_I8:
758 case VT_UI8: return sizeof(LONGLONG);
759 case VT_R4: return sizeof(float);
760 case VT_R8: return sizeof(double);
761 case VT_DATE: return sizeof(DATE);
762 case VT_BOOL: return sizeof(VARIANT_BOOL);
763 case VT_DISPATCH:
764 case VT_UNKNOWN:
765 case VT_BSTR: return sizeof(void*);
766 case VT_CY: return sizeof(CY);
767 case VT_ERROR: return sizeof(SCODE);
768 }
769 TRACE("Shouldn't be called for vt %s%s!\n", debugstr_VT(pv), debugstr_VF(pv));
770 return 0;
771 }
772
773 /******************************************************************************
774 * VariantCopyInd [OLEAUT32.11]
775 *
776 * Copy a variant, dereferencing it it is by-reference.
777 *
778 * PARAMS
779 * pvargDest [O] Destination for copy
780 * pvargSrc [I] Source variant to copy
781 *
782 * RETURNS
783 * Success: S_OK. pvargDest contains a copy of pvargSrc.
784 * Failure: An HRESULT error code indicating the error.
785 *
786 * NOTES
787 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid by-value type.
788 * E_INVALIDARG, if pvargSrc is an invalid by-reference type.
789 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
790 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
791 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
792 *
793 * NOTES
794 * - If pvargSrc is by-value, this function behaves exactly as VariantCopy().
795 * - If pvargSrc is by-reference, the value copied to pvargDest is the pointed-to
796 * value.
797 * - if pvargSrc == pvargDest, this function dereferences in place. Otherwise,
798 * pvargDest is always cleared using VariantClear() before pvargSrc is copied
799 * to it. If clearing pvargDest fails, so does this function.
800 */
801 HRESULT WINAPI VariantCopyInd(VARIANT* pvargDest, VARIANTARG* pvargSrc)
802 {
803 VARIANTARG vTmp, *pSrc = pvargSrc;
804 VARTYPE vt;
805 HRESULT hres = S_OK;
806
807 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
808 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
809 debugstr_VF(pvargSrc));
810
811 if (!V_ISBYREF(pvargSrc))
812 return VariantCopy(pvargDest, pvargSrc);
813
814 /* Argument checking is more lax than VariantCopy()... */
815 vt = V_TYPE(pvargSrc);
816 if (V_ISARRAY(pvargSrc) ||
817 (vt > VT_NULL && vt != (VARTYPE)15 && vt < VT_VOID &&
818 !(V_VT(pvargSrc) & (VT_VECTOR|VT_RESERVED))))
819 {
820 /* OK */
821 }
822 else
823 return E_INVALIDARG; /* ...And the return value for invalid types differs too */
824
825 if (pvargSrc == pvargDest)
826 {
827 /* In place copy. Use a shallow copy of pvargSrc & init pvargDest.
828 * This avoids an expensive VariantCopy() call - e.g. SafeArrayCopy().
829 */
830 vTmp = *pvargSrc;
831 pSrc = &vTmp;
832 V_VT(pvargDest) = VT_EMPTY;
833 }
834 else
835 {
836 /* Copy into another variant. Free the variant in pvargDest */
837 if (FAILED(hres = VariantClear(pvargDest)))
838 {
839 TRACE("VariantClear() of destination failed\n");
840 return hres;
841 }
842 }
843
844 if (V_ISARRAY(pSrc))
845 {
846 /* Native doesn't check that *V_ARRAYREF(pSrc) is valid */
847 hres = SafeArrayCopy(*V_ARRAYREF(pSrc), &V_ARRAY(pvargDest));
848 }
849 else if (V_VT(pSrc) == (VT_BSTR|VT_BYREF))
850 {
851 /* Native doesn't check that *V_BSTRREF(pSrc) is valid */
852 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)*V_BSTRREF(pSrc), SysStringByteLen(*V_BSTRREF(pSrc)));
853 }
854 else if (V_VT(pSrc) == (VT_RECORD|VT_BYREF))
855 {
856 V_UNION(pvargDest,brecVal) = V_UNION(pvargSrc,brecVal);
857 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
858 }
859 else if (V_VT(pSrc) == (VT_DISPATCH|VT_BYREF) ||
860 V_VT(pSrc) == (VT_UNKNOWN|VT_BYREF))
861 {
862 /* Native doesn't check that *V_UNKNOWNREF(pSrc) is valid */
863 V_UNKNOWN(pvargDest) = *V_UNKNOWNREF(pSrc);
864 if (*V_UNKNOWNREF(pSrc))
865 IUnknown_AddRef(*V_UNKNOWNREF(pSrc));
866 }
867 else if (V_VT(pSrc) == (VT_VARIANT|VT_BYREF))
868 {
869 /* Native doesn't check that *V_VARIANTREF(pSrc) is valid */
870 if (V_VT(V_VARIANTREF(pSrc)) == (VT_VARIANT|VT_BYREF))
871 hres = E_INVALIDARG; /* Don't dereference more than one level */
872 else
873 hres = VariantCopyInd(pvargDest, V_VARIANTREF(pSrc));
874
875 /* Use the dereferenced variants type value, not VT_VARIANT */
876 goto VariantCopyInd_Return;
877 }
878 else if (V_VT(pSrc) == (VT_DECIMAL|VT_BYREF))
879 {
880 memcpy(&DEC_SCALE(&V_DECIMAL(pvargDest)), &DEC_SCALE(V_DECIMALREF(pSrc)),
881 sizeof(DECIMAL) - sizeof(USHORT));
882 }
883 else
884 {
885 /* Copy the pointed to data into this variant */
886 memcpy(&V_BYREF(pvargDest), V_BYREF(pSrc), VARIANT_DataSize(pSrc));
887 }
888
889 V_VT(pvargDest) = V_VT(pSrc) & ~VT_BYREF;
890
891 VariantCopyInd_Return:
892
893 if (pSrc != pvargSrc)
894 VariantClear(pSrc);
895
896 TRACE("returning 0x%08lx, %p->(%s%s)\n", hres, pvargDest,
897 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
898 return hres;
899 }
900
901 /******************************************************************************
902 * VariantChangeType [OLEAUT32.12]
903 *
904 * Change the type of a variant.
905 *
906 * PARAMS
907 * pvargDest [O] Destination for the converted variant
908 * pvargSrc [O] Source variant to change the type of
909 * wFlags [I] VARIANT_ flags from "oleauto.h"
910 * vt [I] Variant type to change pvargSrc into
911 *
912 * RETURNS
913 * Success: S_OK. pvargDest contains the converted value.
914 * Failure: An HRESULT error code describing the failure.
915 *
916 * NOTES
917 * The LCID used for the conversion is LOCALE_USER_DEFAULT.
918 * See VariantChangeTypeEx.
919 */
920 HRESULT WINAPI VariantChangeType(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
921 USHORT wFlags, VARTYPE vt)
922 {
923 return VariantChangeTypeEx( pvargDest, pvargSrc, LOCALE_USER_DEFAULT, wFlags, vt );
924 }
925
926 /******************************************************************************
927 * VariantChangeTypeEx [OLEAUT32.147]
928 *
929 * Change the type of a variant.
930 *
931 * PARAMS
932 * pvargDest [O] Destination for the converted variant
933 * pvargSrc [O] Source variant to change the type of
934 * lcid [I] LCID for the conversion
935 * wFlags [I] VARIANT_ flags from "oleauto.h"
936 * vt [I] Variant type to change pvargSrc into
937 *
938 * RETURNS
939 * Success: S_OK. pvargDest contains the converted value.
940 * Failure: An HRESULT error code describing the failure.
941 *
942 * NOTES
943 * pvargDest and pvargSrc can point to the same variant to perform an in-place
944 * conversion. If the conversion is successful, pvargSrc will be freed.
945 */
946 HRESULT WINAPI VariantChangeTypeEx(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
947 LCID lcid, USHORT wFlags, VARTYPE vt)
948 {
949 HRESULT res = S_OK;
950
951 TRACE("(%p->(%s%s),%p->(%s%s),0x%08lx,0x%04x,%s%s)\n", pvargDest,
952 debugstr_VT(pvargDest), debugstr_VF(pvargDest), pvargSrc,
953 debugstr_VT(pvargSrc), debugstr_VF(pvargSrc), lcid, wFlags,
954 debugstr_vt(vt), debugstr_vf(vt));
955
956 if (vt == VT_CLSID)
957 res = DISP_E_BADVARTYPE;
958 else
959 {
960 res = VARIANT_ValidateType(V_VT(pvargSrc));
961
962 if (SUCCEEDED(res))
963 {
964 res = VARIANT_ValidateType(vt);
965
966 if (SUCCEEDED(res))
967 {
968 VARIANTARG vTmp, vSrcDeref;
969
970 if(V_ISBYREF(pvargSrc) && !V_BYREF(pvargSrc))
971 res = DISP_E_TYPEMISMATCH;
972 else
973 {
974 V_VT(&vTmp) = VT_EMPTY;
975 V_VT(&vSrcDeref) = VT_EMPTY;
976 VariantClear(&vTmp);
977 VariantClear(&vSrcDeref);
978 }
979
980 if (SUCCEEDED(res))
981 {
982 res = VariantCopyInd(&vSrcDeref, pvargSrc);
983 if (SUCCEEDED(res))
984 {
985 if (V_ISARRAY(&vSrcDeref) || (vt & VT_ARRAY))
986 res = VARIANT_CoerceArray(&vTmp, &vSrcDeref, vt);
987 else
988 res = VARIANT_Coerce(&vTmp, lcid, wFlags, &vSrcDeref, vt);
989
990 if (SUCCEEDED(res)) {
991 V_VT(&vTmp) = vt;
992 VariantCopy(pvargDest, &vTmp);
993 }
994 VariantClear(&vTmp);
995 VariantClear(&vSrcDeref);
996 }
997 }
998 }
999 }
1000 }
1001
1002 TRACE("returning 0x%08lx, %p->(%s%s)\n", res, pvargDest,
1003 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
1004 return res;
1005 }
1006
1007 /* Date Conversions */
1008
1009 #define IsLeapYear(y) (((y % 4) == 0) && (((y % 100) != 0) || ((y % 400) == 0)))
1010
1011 /* Convert a VT_DATE value to a Julian Date */
1012 static inline int VARIANT_JulianFromDate(int dateIn)
1013 {
1014 int julianDays = dateIn;
1015
1016 julianDays -= DATE_MIN; /* Convert to + days from 1 Jan 100 AD */
1017 julianDays += 1757585; /* Convert to + days from 23 Nov 4713 BC (Julian) */
1018 return julianDays;
1019 }
1020
1021 /* Convert a Julian Date to a VT_DATE value */
1022 static inline int VARIANT_DateFromJulian(int dateIn)
1023 {
1024 int julianDays = dateIn;
1025
1026 julianDays -= 1757585; /* Convert to + days from 1 Jan 100 AD */
1027 julianDays += DATE_MIN; /* Convert to +/- days from 1 Jan 1899 AD */
1028 return julianDays;
1029 }
1030
1031 /* Convert a Julian date to Day/Month/Year - from PostgreSQL */
1032 static inline void VARIANT_DMYFromJulian(int jd, USHORT *year, USHORT *month, USHORT *day)
1033 {
1034 int j, i, l, n;
1035
1036 l = jd + 68569;
1037 n = l * 4 / 146097;
1038 l -= (n * 146097 + 3) / 4;
1039 i = (4000 * (l + 1)) / 1461001;
1040 l += 31 - (i * 1461) / 4;
1041 j = (l * 80) / 2447;
1042 *day = l - (j * 2447) / 80;
1043 l = j / 11;
1044 *month = (j + 2) - (12 * l);
1045 *year = 100 * (n - 49) + i + l;
1046 }
1047
1048 /* Convert Day/Month/Year to a Julian date - from PostgreSQL */
1049 static inline double VARIANT_JulianFromDMY(USHORT year, USHORT month, USHORT day)
1050 {
1051 int m12 = (month - 14) / 12;
1052
1053 return ((1461 * (year + 4800 + m12)) / 4 + (367 * (month - 2 - 12 * m12)) / 12 -
1054 (3 * ((year + 4900 + m12) / 100)) / 4 + day - 32075);
1055 }
1056
1057 /* Macros for accessing DOS format date/time fields */
1058 #define DOS_YEAR(x) (1980 + (x >> 9))
1059 #define DOS_MONTH(x) ((x >> 5) & 0xf)
1060 #define DOS_DAY(x) (x & 0x1f)
1061 #define DOS_HOUR(x) (x >> 11)
1062 #define DOS_MINUTE(x) ((x >> 5) & 0x3f)
1063 #define DOS_SECOND(x) ((x & 0x1f) << 1)
1064 /* Create a DOS format date/time */
1065 #define DOS_DATE(d,m,y) (d | (m << 5) | ((y-1980) << 9))
1066 #define DOS_TIME(h,m,s) ((s >> 1) | (m << 5) | (h << 11))
1067
1068 /* Roll a date forwards or backwards to correct it */
1069 static HRESULT VARIANT_RollUdate(UDATE *lpUd)
1070 {
1071 static const BYTE days[] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
1072
1073 TRACE("Raw date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1074 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1075
1076 /* Years < 100 are treated as 1900 + year */
1077 if (lpUd->st.wYear < 100)
1078 lpUd->st.wYear += 1900;
1079
1080 if (!lpUd->st.wMonth)
1081 {
1082 /* Roll back to December of the previous year */
1083 lpUd->st.wMonth = 12;
1084 lpUd->st.wYear--;
1085 }
1086 else while (lpUd->st.wMonth > 12)
1087 {
1088 /* Roll forward the correct number of months */
1089 lpUd->st.wYear++;
1090 lpUd->st.wMonth -= 12;
1091 }
1092
1093 if (lpUd->st.wYear > 9999 || lpUd->st.wHour > 23 ||
1094 lpUd->st.wMinute > 59 || lpUd->st.wSecond > 59)
1095 return E_INVALIDARG; /* Invalid values */
1096
1097 if (!lpUd->st.wDay)
1098 {
1099 /* Roll back the date one day */
1100 if (lpUd->st.wMonth == 1)
1101 {
1102 /* Roll back to December 31 of the previous year */
1103 lpUd->st.wDay = 31;
1104 lpUd->st.wMonth = 12;
1105 lpUd->st.wYear--;
1106 }
1107 else
1108 {
1109 lpUd->st.wMonth--; /* Previous month */
1110 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1111 lpUd->st.wDay = 29; /* Februaury has 29 days on leap years */
1112 else
1113 lpUd->st.wDay = days[lpUd->st.wMonth]; /* Last day of the month */
1114 }
1115 }
1116 else if (lpUd->st.wDay > 28)
1117 {
1118 int rollForward = 0;
1119
1120 /* Possibly need to roll the date forward */
1121 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1122 rollForward = lpUd->st.wDay - 29; /* Februaury has 29 days on leap years */
1123 else
1124 rollForward = lpUd->st.wDay - days[lpUd->st.wMonth];
1125
1126 if (rollForward > 0)
1127 {
1128 lpUd->st.wDay = rollForward;
1129 lpUd->st.wMonth++;
1130 if (lpUd->st.wMonth > 12)
1131 {
1132 lpUd->st.wMonth = 1; /* Roll forward into January of the next year */
1133 lpUd->st.wYear++;
1134 }
1135 }
1136 }
1137 TRACE("Rolled date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1138 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1139 return S_OK;
1140 }
1141
1142 /**********************************************************************
1143 * DosDateTimeToVariantTime [OLEAUT32.14]
1144 *
1145 * Convert a Dos format date and time into variant VT_DATE format.
1146 *
1147 * PARAMS
1148 * wDosDate [I] Dos format date
1149 * wDosTime [I] Dos format time
1150 * pDateOut [O] Destination for VT_DATE format
1151 *
1152 * RETURNS
1153 * Success: TRUE. pDateOut contains the converted time.
1154 * Failure: FALSE, if wDosDate or wDosTime are invalid (see notes).
1155 *
1156 * NOTES
1157 * - Dos format dates can only hold dates from 1-Jan-1980 to 31-Dec-2099.
1158 * - Dos format times are accurate to only 2 second precision.
1159 * - The format of a Dos Date is:
1160 *| Bits Values Meaning
1161 *| ---- ------ -------
1162 *| 0-4 1-31 Day of the week. 0 rolls back one day. A value greater than
1163 *| the days in the month rolls forward the extra days.
1164 *| 5-8 1-12 Month of the year. 0 rolls back to December of the previous
1165 *| year. 13-15 are invalid.
1166 *| 9-15 0-119 Year based from 1980 (Max 2099). 120-127 are invalid.
1167 * - The format of a Dos Time is:
1168 *| Bits Values Meaning
1169 *| ---- ------ -------
1170 *| 0-4 0-29 Seconds/2. 30 and 31 are invalid.
1171 *| 5-10 0-59 Minutes. 60-63 are invalid.
1172 *| 11-15 0-23 Hours (24 hour clock). 24-32 are invalid.
1173 */
1174 INT WINAPI DosDateTimeToVariantTime(USHORT wDosDate, USHORT wDosTime,
1175 double *pDateOut)
1176 {
1177 UDATE ud;
1178
1179 TRACE("(0x%x(%d/%d/%d),0x%x(%d:%d:%d),%p)\n",
1180 wDosDate, DOS_YEAR(wDosDate), DOS_MONTH(wDosDate), DOS_DAY(wDosDate),
1181 wDosTime, DOS_HOUR(wDosTime), DOS_MINUTE(wDosTime), DOS_SECOND(wDosTime),
1182 pDateOut);
1183
1184 ud.st.wYear = DOS_YEAR(wDosDate);
1185 ud.st.wMonth = DOS_MONTH(wDosDate);
1186 if (ud.st.wYear > 2099 || ud.st.wMonth > 12)
1187 return FALSE;
1188 ud.st.wDay = DOS_DAY(wDosDate);
1189 ud.st.wHour = DOS_HOUR(wDosTime);
1190 ud.st.wMinute = DOS_MINUTE(wDosTime);
1191 ud.st.wSecond = DOS_SECOND(wDosTime);
1192 ud.st.wDayOfWeek = ud.st.wMilliseconds = 0;
1193
1194 return !VarDateFromUdate(&ud, 0, pDateOut);
1195 }
1196
1197 /**********************************************************************
1198 * VariantTimeToDosDateTime [OLEAUT32.13]
1199 *
1200 * Convert a variant format date into a Dos format date and time.
1201 *
1202 * dateIn [I] VT_DATE time format
1203 * pwDosDate [O] Destination for Dos format date
1204 * pwDosTime [O] Destination for Dos format time
1205 *
1206 * RETURNS
1207 * Success: TRUE. pwDosDate and pwDosTime contains the converted values.
1208 * Failure: FALSE, if dateIn cannot be represented in Dos format.
1209 *
1210 * NOTES
1211 * See DosDateTimeToVariantTime() for Dos format details and bugs.
1212 */
1213 INT WINAPI VariantTimeToDosDateTime(double dateIn, USHORT *pwDosDate, USHORT *pwDosTime)
1214 {
1215 UDATE ud;
1216
1217 TRACE("(%g,%p,%p)\n", dateIn, pwDosDate, pwDosTime);
1218
1219 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1220 return FALSE;
1221
1222 if (ud.st.wYear < 1980 || ud.st.wYear > 2099)
1223 return FALSE;
1224
1225 *pwDosDate = DOS_DATE(ud.st.wDay, ud.st.wMonth, ud.st.wYear);
1226 *pwDosTime = DOS_TIME(ud.st.wHour, ud.st.wMinute, ud.st.wSecond);
1227
1228 TRACE("Returning 0x%x(%d/%d/%d), 0x%x(%d:%d:%d)\n",
1229 *pwDosDate, DOS_YEAR(*pwDosDate), DOS_MONTH(*pwDosDate), DOS_DAY(*pwDosDate),
1230 *pwDosTime, DOS_HOUR(*pwDosTime), DOS_MINUTE(*pwDosTime), DOS_SECOND(*pwDosTime));
1231 return TRUE;
1232 }
1233
1234 /***********************************************************************
1235 * SystemTimeToVariantTime [OLEAUT32.184]
1236 *
1237 * Convert a System format date and time into variant VT_DATE format.
1238 *
1239 * PARAMS
1240 * lpSt [I] System format date and time
1241 * pDateOut [O] Destination for VT_DATE format date
1242 *
1243 * RETURNS
1244 * Success: TRUE. *pDateOut contains the converted value.
1245 * Failure: FALSE, if lpSt cannot be represented in VT_DATE format.
1246 */
1247 INT WINAPI SystemTimeToVariantTime(LPSYSTEMTIME lpSt, double *pDateOut)
1248 {
1249 UDATE ud;
1250
1251 TRACE("(%p->%d/%d/%d %d:%d:%d,%p)\n", lpSt, lpSt->wDay, lpSt->wMonth,
1252 lpSt->wYear, lpSt->wHour, lpSt->wMinute, lpSt->wSecond, pDateOut);
1253
1254 if (lpSt->wMonth > 12)
1255 return FALSE;
1256
1257 memcpy(&ud.st, lpSt, sizeof(ud.st));
1258 return !VarDateFromUdate(&ud, 0, pDateOut);
1259 }
1260
1261 /***********************************************************************
1262 * VariantTimeToSystemTime [OLEAUT32.185]
1263 *
1264 * Convert a variant VT_DATE into a System format date and time.
1265 *
1266 * PARAMS
1267 * datein [I] Variant VT_DATE format date
1268 * lpSt [O] Destination for System format date and time
1269 *
1270 * RETURNS
1271 * Success: TRUE. *lpSt contains the converted value.
1272 * Failure: FALSE, if dateIn is too large or small.
1273 */
1274 INT WINAPI VariantTimeToSystemTime(double dateIn, LPSYSTEMTIME lpSt)
1275 {
1276 UDATE ud;
1277
1278 TRACE("(%g,%p)\n", dateIn, lpSt);
1279
1280 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1281 return FALSE;
1282
1283 memcpy(lpSt, &ud.st, sizeof(ud.st));
1284 return TRUE;
1285 }
1286
1287 /***********************************************************************
1288 * VarDateFromUdateEx [OLEAUT32.319]
1289 *
1290 * Convert an unpacked format date and time to a variant VT_DATE.
1291 *
1292 * PARAMS
1293 * pUdateIn [I] Unpacked format date and time to convert
1294 * lcid [I] Locale identifier for the conversion
1295 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1296 * pDateOut [O] Destination for variant VT_DATE.
1297 *
1298 * RETURNS
1299 * Success: S_OK. *pDateOut contains the converted value.
1300 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1301 */
1302 HRESULT WINAPI VarDateFromUdateEx(UDATE *pUdateIn, LCID lcid, ULONG dwFlags, DATE *pDateOut)
1303 {
1304 UDATE ud;
1305 double dateVal;
1306
1307 TRACE("(%p->%d/%d/%d %d:%d:%d:%d %d %d,0x%08lx,0x%08lx,%p)\n", pUdateIn,
1308 pUdateIn->st.wMonth, pUdateIn->st.wDay, pUdateIn->st.wYear,
1309 pUdateIn->st.wHour, pUdateIn->st.wMinute, pUdateIn->st.wSecond,
1310 pUdateIn->st.wMilliseconds, pUdateIn->st.wDayOfWeek,
1311 pUdateIn->wDayOfYear, lcid, dwFlags, pDateOut);
1312
1313 if (lcid != MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT))
1314 FIXME("lcid possibly not handled, treating as en-us\n");
1315
1316 memcpy(&ud, pUdateIn, sizeof(ud));
1317
1318 if (dwFlags & VAR_VALIDDATE)
1319 WARN("Ignoring VAR_VALIDDATE\n");
1320
1321 if (FAILED(VARIANT_RollUdate(&ud)))
1322 return E_INVALIDARG;
1323
1324 /* Date */
1325 dateVal = VARIANT_DateFromJulian(VARIANT_JulianFromDMY(ud.st.wYear, ud.st.wMonth, ud.st.wDay));
1326
1327 /* Time */
1328 dateVal += ud.st.wHour / 24.0;
1329 dateVal += ud.st.wMinute / 1440.0;
1330 dateVal += ud.st.wSecond / 86400.0;
1331 dateVal += ud.st.wMilliseconds / 86400000.0;
1332
1333 TRACE("Returning %g\n", dateVal);
1334 *pDateOut = dateVal;
1335 return S_OK;
1336 }
1337
1338 /***********************************************************************
1339 * VarDateFromUdate [OLEAUT32.330]
1340 *
1341 * Convert an unpacked format date and time to a variant VT_DATE.
1342 *
1343 * PARAMS
1344 * pUdateIn [I] Unpacked format date and time to convert
1345 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1346 * pDateOut [O] Destination for variant VT_DATE.
1347 *
1348 * RETURNS
1349 * Success: S_OK. *pDateOut contains the converted value.
1350 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1351 *
1352 * NOTES
1353 * This function uses the United States English locale for the conversion. Use
1354 * VarDateFromUdateEx() for alternate locales.
1355 */
1356 HRESULT WINAPI VarDateFromUdate(UDATE *pUdateIn, ULONG dwFlags, DATE *pDateOut)
1357 {
1358 LCID lcid = MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT);
1359
1360 return VarDateFromUdateEx(pUdateIn, lcid, dwFlags, pDateOut);
1361 }
1362
1363 /***********************************************************************
1364 * VarUdateFromDate [OLEAUT32.331]
1365 *
1366 * Convert a variant VT_DATE into an unpacked format date and time.
1367 *
1368 * PARAMS
1369 * datein [I] Variant VT_DATE format date
1370 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1371 * lpUdate [O] Destination for unpacked format date and time
1372 *
1373 * RETURNS
1374 * Success: S_OK. *lpUdate contains the converted value.
1375 * Failure: E_INVALIDARG, if dateIn is too large or small.
1376 */
1377 HRESULT WINAPI VarUdateFromDate(DATE dateIn, ULONG dwFlags, UDATE *lpUdate)
1378 {
1379 /* Cumulative totals of days per month */
1380 static const USHORT cumulativeDays[] =
1381 {
1382 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
1383 };
1384 double datePart, timePart;
1385 int julianDays;
1386
1387 TRACE("(%g,0x%08lx,%p)\n", dateIn, dwFlags, lpUdate);
1388
1389 if (dateIn <= (DATE_MIN - 1.0) || dateIn >= (DATE_MAX + 1.0))
1390 return E_INVALIDARG;
1391
1392 datePart = dateIn < 0.0 ? ceil(dateIn) : floor(dateIn);
1393 /* Compensate for int truncation (always downwards) */
1394 timePart = dateIn - datePart + 0.00000000001;
1395 if (timePart >= 1.0)
1396 timePart -= 0.00000000001;
1397
1398 /* Date */
1399 julianDays = VARIANT_JulianFromDate(dateIn);
1400 VARIANT_DMYFromJulian(julianDays, &lpUdate->st.wYear, &lpUdate->st.wMonth,
1401 &lpUdate->st.wDay);
1402
1403 datePart = (datePart + 1.5) / 7.0;
1404 lpUdate->st.wDayOfWeek = (datePart - floor(datePart)) * 7;
1405 if (lpUdate->st.wDayOfWeek == 0)
1406 lpUdate->st.wDayOfWeek = 5;
1407 else if (lpUdate->st.wDayOfWeek == 1)
1408 lpUdate->st.wDayOfWeek = 6;
1409 else
1410 lpUdate->st.wDayOfWeek -= 2;
1411
1412 if (lpUdate->st.wMonth > 2 && IsLeapYear(lpUdate->st.wYear))
1413 lpUdate->wDayOfYear = 1; /* After February, in a leap year */
1414 else
1415 lpUdate->wDayOfYear = 0;
1416
1417 lpUdate->wDayOfYear += cumulativeDays[lpUdate->st.wMonth];
1418 lpUdate->wDayOfYear += lpUdate->st.wDay;
1419
1420 /* Time */
1421 timePart *= 24.0;
1422 lpUdate->st.wHour = timePart;
1423 timePart -= lpUdate->st.wHour;
1424 timePart *= 60.0;
1425 lpUdate->st.wMinute = timePart;
1426 timePart -= lpUdate->st.wMinute;
1427 timePart *= 60.0;
1428 lpUdate->st.wSecond = timePart;
1429 timePart -= lpUdate->st.wSecond;
1430 lpUdate->st.wMilliseconds = 0;
1431 if (timePart > 0.5)
1432 {
1433 /* Round the milliseconds, adjusting the time/date forward if needed */
1434 if (lpUdate->st.wSecond < 59)
1435 lpUdate->st.wSecond++;
1436 else
1437 {
1438 lpUdate->st.wSecond = 0;
1439 if (lpUdate->st.wMinute < 59)
1440 lpUdate->st.wMinute++;
1441 else
1442 {
1443 lpUdate->st.wMinute = 0;
1444 if (lpUdate->st.wHour < 23)
1445 lpUdate->st.wHour++;
1446 else
1447 {
1448 lpUdate->st.wHour = 0;
1449 /* Roll over a whole day */
1450 if (++lpUdate->st.wDay > 28)
1451 VARIANT_RollUdate(lpUdate);
1452 }
1453 }
1454 }
1455 }
1456 return S_OK;
1457 }
1458
1459 #define GET_NUMBER_TEXT(fld,name) \
1460 buff[0] = 0; \
1461 if (!GetLocaleInfoW(lcid, lctype|fld, buff, 2)) \
1462 WARN("buffer too small for " #fld "\n"); \
1463 else \
1464 if (buff[0]) lpChars->name = buff[0]; \
1465 TRACE("lcid 0x%lx, " #name "=%d '%c'\n", lcid, lpChars->name, lpChars->name)
1466
1467 /* Get the valid number characters for an lcid */
1468 void VARIANT_GetLocalisedNumberChars(VARIANT_NUMBER_CHARS *lpChars, LCID lcid, DWORD dwFlags)
1469 {
1470 static const VARIANT_NUMBER_CHARS defaultChars = { '-','+','.',',','$',0,'.',',' };
1471 LCTYPE lctype = dwFlags & LOCALE_NOUSEROVERRIDE;
1472 WCHAR buff[4];
1473
1474 memcpy(lpChars, &defaultChars, sizeof(defaultChars));
1475 GET_NUMBER_TEXT(LOCALE_SNEGATIVESIGN, cNegativeSymbol);
1476 GET_NUMBER_TEXT(LOCALE_SPOSITIVESIGN, cPositiveSymbol);
1477 GET_NUMBER_TEXT(LOCALE_SDECIMAL, cDecimalPoint);
1478 GET_NUMBER_TEXT(LOCALE_STHOUSAND, cDigitSeperator);
1479 GET_NUMBER_TEXT(LOCALE_SMONDECIMALSEP, cCurrencyDecimalPoint);
1480 GET_NUMBER_TEXT(LOCALE_SMONTHOUSANDSEP, cCurrencyDigitSeperator);
1481
1482 /* Local currency symbols are often 2 characters */
1483 lpChars->cCurrencyLocal2 = '\0';
1484 switch(GetLocaleInfoW(lcid, lctype|LOCALE_SCURRENCY, buff, sizeof(buff)/sizeof(WCHAR)))
1485 {
1486 case 3: lpChars->cCurrencyLocal2 = buff[1]; /* Fall through */
1487 case 2: lpChars->cCurrencyLocal = buff[0];
1488 break;
1489 default: WARN("buffer too small for LOCALE_SCURRENCY\n");
1490 }
1491 TRACE("lcid 0x%lx, cCurrencyLocal =%d,%d '%c','%c'\n", lcid, lpChars->cCurrencyLocal,
1492 lpChars->cCurrencyLocal2, lpChars->cCurrencyLocal, lpChars->cCurrencyLocal2);
1493 }
1494
1495 /* Number Parsing States */
1496 #define B_PROCESSING_EXPONENT 0x1
1497 #define B_NEGATIVE_EXPONENT 0x2
1498 #define B_EXPONENT_START 0x4
1499 #define B_INEXACT_ZEROS 0x8
1500 #define B_LEADING_ZERO 0x10
1501 #define B_PROCESSING_HEX 0x20
1502 #define B_PROCESSING_OCT 0x40
1503
1504 /**********************************************************************
1505 * VarParseNumFromStr [OLEAUT32.46]
1506 *
1507 * Parse a string containing a number into a NUMPARSE structure.
1508 *
1509 * PARAMS
1510 * lpszStr [I] String to parse number from
1511 * lcid [I] Locale Id for the conversion
1512 * dwFlags [I] 0, or LOCALE_NOUSEROVERRIDE to use system default number chars
1513 * pNumprs [I/O] Destination for parsed number
1514 * rgbDig [O] Destination for digits read in
1515 *
1516 * RETURNS
1517 * Success: S_OK. pNumprs and rgbDig contain the parsed representation of
1518 * the number.
1519 * Failure: E_INVALIDARG, if any parameter is invalid.
1520 * DISP_E_TYPEMISMATCH, if the string is not a number or is formatted
1521 * incorrectly.
1522 * DISP_E_OVERFLOW, if rgbDig is too small to hold the number.
1523 *
1524 * NOTES
1525 * pNumprs must have the following fields set:
1526 * cDig: Set to the size of rgbDig.
1527 * dwInFlags: Set to the allowable syntax of the number using NUMPRS_ flags
1528 * from "oleauto.h".
1529 *
1530 * FIXME
1531 * - I am unsure if this function should parse non-arabic (e.g. Thai)
1532 * numerals, so this has not been implemented.
1533 */
1534 HRESULT WINAPI VarParseNumFromStr(OLECHAR *lpszStr, LCID lcid, ULONG dwFlags,
1535 NUMPARSE *pNumprs, BYTE *rgbDig)
1536 {
1537 VARIANT_NUMBER_CHARS chars;
1538 BYTE rgbTmp[1024];
1539 DWORD dwState = B_EXPONENT_START|B_INEXACT_ZEROS;
1540 int iMaxDigits = sizeof(rgbTmp) / sizeof(BYTE);
1541 int cchUsed = 0;
1542
1543 TRACE("(%s,%ld,0x%08lx,%p,%p)\n", debugstr_w(lpszStr), lcid, dwFlags, pNumprs, rgbDig);
1544
1545 if (!pNumprs || !rgbDig)
1546 return E_INVALIDARG;
1547
1548 if (pNumprs->cDig < iMaxDigits)
1549 iMaxDigits = pNumprs->cDig;
1550
1551 pNumprs->cDig = 0;
1552 pNumprs->dwOutFlags = 0;
1553 pNumprs->cchUsed = 0;
1554 pNumprs->nBaseShift = 0;
1555 pNumprs->nPwr10 = 0;
1556
1557 if (!lpszStr)
1558 return DISP_E_TYPEMISMATCH;
1559
1560 VARIANT_GetLocalisedNumberChars(&chars, lcid, dwFlags);
1561
1562 /* First consume all the leading symbols and space from the string */
1563 while (1)
1564 {
1565 if (pNumprs->dwInFlags & NUMPRS_LEADING_WHITE && isspaceW(*lpszStr))
1566 {
1567 pNumprs->dwOutFlags |= NUMPRS_LEADING_WHITE;
1568 do
1569 {
1570 cchUsed++;
1571 lpszStr++;
1572 } while (isspaceW(*lpszStr));
1573 }
1574 else if (pNumprs->dwInFlags & NUMPRS_LEADING_PLUS &&
1575 *lpszStr == chars.cPositiveSymbol &&
1576 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS))
1577 {
1578 pNumprs->dwOutFlags |= NUMPRS_LEADING_PLUS;
1579 cchUsed++;
1580 lpszStr++;
1581 }
1582 else if (pNumprs->dwInFlags & NUMPRS_LEADING_MINUS &&
1583 *lpszStr == chars.cNegativeSymbol &&
1584 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS))
1585 {
1586 pNumprs->dwOutFlags |= (NUMPRS_LEADING_MINUS|NUMPRS_NEG);
1587 cchUsed++;
1588 lpszStr++;
1589 }
1590 else if (pNumprs->dwInFlags & NUMPRS_CURRENCY &&
1591 !(pNumprs->dwOutFlags & NUMPRS_CURRENCY) &&
1592 *lpszStr == chars.cCurrencyLocal &&
1593 (!chars.cCurrencyLocal2 || lpszStr[1] == chars.cCurrencyLocal2))
1594 {
1595 pNumprs->dwOutFlags |= NUMPRS_CURRENCY;
1596 cchUsed++;
1597 lpszStr++;
1598 /* Only accept currency characters */
1599 chars.cDecimalPoint = chars.cCurrencyDecimalPoint;
1600 chars.cDigitSeperator = chars.cCurrencyDigitSeperator;
1601 }
1602 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == '(' &&
1603 !(pNumprs->dwOutFlags & NUMPRS_PARENS))
1604 {
1605 pNumprs->dwOutFlags |= NUMPRS_PARENS;
1606 cchUsed++;
1607 lpszStr++;
1608 }
1609 else
1610 break;
1611 }
1612
1613 if (!(pNumprs->dwOutFlags & NUMPRS_CURRENCY))
1614 {
1615 /* Only accept non-currency characters */
1616 chars.cCurrencyDecimalPoint = chars.cDecimalPoint;
1617 chars.cCurrencyDigitSeperator = chars.cDigitSeperator;
1618 }
1619
1620 if ((*lpszStr == '&' && (*(lpszStr+1) == 'H' || *(lpszStr+1) == 'h')) &&
1621 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1622 {
1623 dwState |= B_PROCESSING_HEX;
1624 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1625 cchUsed=cchUsed+2;
1626 lpszStr=lpszStr+2;
1627 }
1628 else if ((*lpszStr == '&' && (*(lpszStr+1) == 'O' || *(lpszStr+1) == 'o')) &&
1629 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1630 {
1631 dwState |= B_PROCESSING_OCT;
1632 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1633 cchUsed=cchUsed+2;
1634 lpszStr=lpszStr+2;
1635 }
1636
1637 /* Strip Leading zeros */
1638 while (*lpszStr == '0')
1639 {
1640 dwState |= B_LEADING_ZERO;
1641 cchUsed++;
1642 lpszStr++;
1643 }
1644
1645 while (*lpszStr)
1646 {
1647 if (isdigitW(*lpszStr))
1648 {
1649 if (dwState & B_PROCESSING_EXPONENT)
1650 {
1651 int exponentSize = 0;
1652 if (dwState & B_EXPONENT_START)
1653 {
1654 if (!isdigitW(*lpszStr))
1655 break; /* No exponent digits - invalid */
1656 while (*lpszStr == '0')
1657 {
1658 /* Skip leading zero's in the exponent */
1659 cchUsed++;
1660 lpszStr++;
1661 }
1662 }
1663
1664 while (isdigitW(*lpszStr))
1665 {
1666 exponentSize *= 10;
1667 exponentSize += *lpszStr - '0';
1668 cchUsed++;
1669 lpszStr++;
1670 }
1671 if (dwState & B_NEGATIVE_EXPONENT)
1672 exponentSize = -exponentSize;
1673 /* Add the exponent into the powers of 10 */
1674 pNumprs->nPwr10 += exponentSize;
1675 dwState &= ~(B_PROCESSING_EXPONENT|B_EXPONENT_START);
1676 lpszStr--; /* back up to allow processing of next char */
1677 }
1678 else
1679 {
1680 if ((pNumprs->cDig >= iMaxDigits) && !(dwState & B_PROCESSING_HEX)
1681 && !(dwState & B_PROCESSING_OCT))
1682 {
1683 pNumprs->dwOutFlags |= NUMPRS_INEXACT;
1684
1685 if (*lpszStr != '0')
1686 dwState &= ~B_INEXACT_ZEROS; /* Inexact number with non-trailing zeros */
1687
1688 /* This digit can't be represented, but count it in nPwr10 */
1689 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1690 pNumprs->nPwr10--;
1691 else
1692 pNumprs->nPwr10++;
1693 }
1694 else
1695 {
1696 if ((dwState & B_PROCESSING_OCT) && ((*lpszStr == '8') || (*lpszStr == '9'))) {
1697 return DISP_E_TYPEMISMATCH;
1698 }
1699
1700 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1701 pNumprs->nPwr10--; /* Count decimal points in nPwr10 */
1702
1703 rgbTmp[pNumprs->cDig] = *lpszStr - '0';
1704 }
1705 pNumprs->cDig++;
1706 cchUsed++;
1707 }
1708 }
1709 else if (*lpszStr == chars.cDigitSeperator && pNumprs->dwInFlags & NUMPRS_THOUSANDS)
1710 {
1711 pNumprs->dwOutFlags |= NUMPRS_THOUSANDS;
1712 cchUsed++;
1713 }
1714 else if (*lpszStr == chars.cDecimalPoint &&
1715 pNumprs->dwInFlags & NUMPRS_DECIMAL &&
1716 !(pNumprs->dwOutFlags & (NUMPRS_DECIMAL|NUMPRS_EXPONENT)))
1717 {
1718 pNumprs->dwOutFlags |= NUMPRS_DECIMAL;
1719 cchUsed++;
1720
1721 /* If we have no digits so far, skip leading zeros */
1722 if (!pNumprs->cDig)
1723 {
1724 while (lpszStr[1] == '0')
1725 {
1726 dwState |= B_LEADING_ZERO;
1727 cchUsed++;
1728 lpszStr++;
1729 pNumprs->nPwr10--;
1730 }
1731 }
1732 }
1733 else if (((*lpszStr >= 'a' && *lpszStr <= 'f') ||
1734 (*lpszStr >= 'A' && *lpszStr <= 'F')) &&
1735 dwState & B_PROCESSING_HEX)
1736 {
1737 if (pNumprs->cDig >= iMaxDigits)
1738 {
1739 return DISP_E_OVERFLOW;
1740 }
1741 else
1742 {
1743 if (*lpszStr >= 'a')
1744 rgbTmp[pNumprs->cDig] = *lpszStr - 'a' + 10;
1745 else
1746 rgbTmp[pNumprs->cDig] = *lpszStr - 'A' + 10;
1747 }
1748 pNumprs->cDig++;
1749 cchUsed++;
1750 }
1751 else if ((*lpszStr == 'e' || *lpszStr == 'E') &&
1752 pNumprs->dwInFlags & NUMPRS_EXPONENT &&
1753 !(pNumprs->dwOutFlags & NUMPRS_EXPONENT))
1754 {
1755 dwState |= B_PROCESSING_EXPONENT;
1756 pNumprs->dwOutFlags |= NUMPRS_EXPONENT;
1757 cchUsed++;
1758 }
1759 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cPositiveSymbol)
1760 {
1761 cchUsed++; /* Ignore positive exponent */
1762 }
1763 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cNegativeSymbol)
1764 {
1765 dwState |= B_NEGATIVE_EXPONENT;
1766 cchUsed++;
1767 }
1768 else
1769 break; /* Stop at an unrecognised character */
1770
1771 lpszStr++;
1772 }
1773
1774 if (!pNumprs->cDig && dwState & B_LEADING_ZERO)
1775 {
1776 /* Ensure a 0 on its own gets stored */
1777 pNumprs->cDig = 1;
1778 rgbTmp[0] = 0;
1779 }
1780
1781 if (pNumprs->dwOutFlags & NUMPRS_EXPONENT && dwState & B_PROCESSING_EXPONENT)
1782 {
1783 pNumprs->cchUsed = cchUsed;
1784 WARN("didn't completely parse exponent\n");
1785 return DISP_E_TYPEMISMATCH; /* Failed to completely parse the exponent */
1786 }
1787
1788 if (pNumprs->dwOutFlags & NUMPRS_INEXACT)
1789 {
1790 if (dwState & B_INEXACT_ZEROS)
1791 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* All zeros doesn't set NUMPRS_INEXACT */
1792 } else if(pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1793 {
1794 /* copy all of the digits into the output digit buffer */
1795 /* this is exactly what windows does although it also returns */
1796 /* cDig of X and writes X+Y where Y>=0 number of digits to rgbDig */
1797 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1798
1799 if (dwState & B_PROCESSING_HEX) {
1800 /* hex numbers have always the same format */
1801 pNumprs->nPwr10=0;
1802 pNumprs->nBaseShift=4;
1803 } else {
1804 if (dwState & B_PROCESSING_OCT) {
1805 /* oct numbers have always the same format */
1806 pNumprs->nPwr10=0;
1807 pNumprs->nBaseShift=3;
1808 } else {
1809 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1810 {
1811 pNumprs->nPwr10++;
1812 pNumprs->cDig--;
1813 }
1814 }
1815 }
1816 } else
1817 {
1818 /* Remove trailing zeros from the last (whole number or decimal) part */
1819 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1820 {
1821 pNumprs->nPwr10++;
1822 pNumprs->cDig--;
1823 }
1824 }
1825
1826 if (pNumprs->cDig <= iMaxDigits)
1827 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* Ignore stripped zeros for NUMPRS_INEXACT */
1828 else
1829 pNumprs->cDig = iMaxDigits; /* Only return iMaxDigits worth of digits */
1830
1831 /* Copy the digits we processed into rgbDig */
1832 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1833
1834 /* Consume any trailing symbols and space */
1835 while (1)
1836 {
1837 if ((pNumprs->dwInFlags & NUMPRS_TRAILING_WHITE) && isspaceW(*lpszStr))
1838 {
1839 pNumprs->dwOutFlags |= NUMPRS_TRAILING_WHITE;
1840 do
1841 {
1842 cchUsed++;
1843 lpszStr++;
1844 } while (isspaceW(*lpszStr));
1845 }
1846 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_PLUS &&
1847 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS) &&
1848 *lpszStr == chars.cPositiveSymbol)
1849 {
1850 pNumprs->dwOutFlags |= NUMPRS_TRAILING_PLUS;
1851 cchUsed++;
1852 lpszStr++;
1853 }
1854 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_MINUS &&
1855 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS) &&
1856 *lpszStr == chars.cNegativeSymbol)
1857 {
1858 pNumprs->dwOutFlags |= (NUMPRS_TRAILING_MINUS|NUMPRS_NEG);
1859 cchUsed++;
1860 lpszStr++;
1861 }
1862 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == ')' &&
1863 pNumprs->dwOutFlags & NUMPRS_PARENS)
1864 {
1865 cchUsed++;
1866 lpszStr++;
1867 pNumprs->dwOutFlags |= NUMPRS_NEG;
1868 }
1869 else
1870 break;
1871 }
1872
1873 if (pNumprs->dwOutFlags & NUMPRS_PARENS && !(pNumprs->dwOutFlags & NUMPRS_NEG))
1874 {
1875 pNumprs->cchUsed = cchUsed;
1876 return DISP_E_TYPEMISMATCH; /* Opening parenthesis not matched */
1877 }
1878
1879 if (pNumprs->dwInFlags & NUMPRS_USE_ALL && *lpszStr != '\0')
1880 return DISP_E_TYPEMISMATCH; /* Not all chars were consumed */
1881
1882 if (!pNumprs->cDig)
1883 return DISP_E_TYPEMISMATCH; /* No Number found */
1884
1885 pNumprs->cchUsed = cchUsed;
1886 return S_OK;
1887 }
1888
1889 /* VTBIT flags indicating an integer value */
1890 #define INTEGER_VTBITS (VTBIT_I1|VTBIT_UI1|VTBIT_I2|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|VTBIT_I8|VTBIT_UI8)
1891 /* VTBIT flags indicating a real number value */
1892 #define REAL_VTBITS (VTBIT_R4|VTBIT_R8|VTBIT_CY)
1893
1894 /* Helper macros to check whether bit pattern fits in VARIANT (x is a ULONG64 ) */
1895 #define FITS_AS_I1(x) ((x) >> 8 == 0)
1896 #define FITS_AS_I2(x) ((x) >> 16 == 0)
1897 #define FITS_AS_I4(x) ((x) >> 32 == 0)
1898
1899 /**********************************************************************
1900 * VarNumFromParseNum [OLEAUT32.47]
1901 *
1902 * Convert a NUMPARSE structure into a numeric Variant type.
1903 *
1904 * PARAMS
1905 * pNumprs [I] Source for parsed number. cDig must be set to the size of rgbDig
1906 * rgbDig [I] Source for the numbers digits
1907 * dwVtBits [I] VTBIT_ flags from "oleauto.h" indicating the acceptable dest types
1908 * pVarDst [O] Destination for the converted Variant value.
1909 *
1910 * RETURNS
1911 * Success: S_OK. pVarDst contains the converted value.
1912 * Failure: E_INVALIDARG, if any parameter is invalid.
1913 * DISP_E_OVERFLOW, if the number is too big for the types set in dwVtBits.
1914 *
1915 * NOTES
1916 * - The smallest favoured type present in dwVtBits that can represent the
1917 * number in pNumprs without losing precision is used.
1918 * - Signed types are preferrred over unsigned types of the same size.
1919 * - Preferred types in order are: integer, float, double, currency then decimal.
1920 * - Rounding (dropping of decimal points) occurs without error. See VarI8FromR8()
1921 * for details of the rounding method.
1922 * - pVarDst is not cleared before the result is stored in it.
1923 * - WinXP and Win2003 support VTBIT_I8, VTBIT_UI8 but that's buggy (by
1924 * design?): If some other VTBIT's for integers are specified together
1925 * with VTBIT_I8 and the number will fit only in a VT_I8 Windows will "cast"
1926 * the number to the smallest requested integer truncating this way the
1927 * number. Wine dosn't implement this "feature" (yet?).
1928 */
1929 HRESULT WINAPI VarNumFromParseNum(NUMPARSE *pNumprs, BYTE *rgbDig,
1930 ULONG dwVtBits, VARIANT *pVarDst)
1931 {
1932 /* Scale factors and limits for double arithmetic */
1933 static const double dblMultipliers[11] = {
1934 1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0,
1935 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0
1936 };
1937 static const double dblMinimums[11] = {
1938 R8_MIN, R8_MIN*10.0, R8_MIN*100.0, R8_MIN*1000.0, R8_MIN*10000.0,
1939 R8_MIN*100000.0, R8_MIN*1000000.0, R8_MIN*10000000.0,
1940 R8_MIN*100000000.0, R8_MIN*1000000000.0, R8_MIN*10000000000.0
1941 };
1942 static const double dblMaximums[11] = {
1943 R8_MAX, R8_MAX/10.0, R8_MAX/100.0, R8_MAX/1000.0, R8_MAX/10000.0,
1944 R8_MAX/100000.0, R8_MAX/1000000.0, R8_MAX/10000000.0,
1945 R8_MAX/100000000.0, R8_MAX/1000000000.0, R8_MAX/10000000000.0
1946 };
1947
1948 int wholeNumberDigits, fractionalDigits, divisor10 = 0, multiplier10 = 0;
1949
1950 TRACE("(%p,%p,0x%lx,%p)\n", pNumprs, rgbDig, dwVtBits, pVarDst);
1951
1952 if (pNumprs->nBaseShift)
1953 {
1954 /* nBaseShift indicates a hex or octal number */
1955 ULONG64 ul64 = 0;
1956 LONG64 l64;
1957 int i;
1958
1959 /* Convert the hex or octal number string into a UI64 */
1960 for (i = 0; i < pNumprs->cDig; i++)
1961 {
1962 if (ul64 > ((UI8_MAX>>pNumprs->nBaseShift) - rgbDig[i]))
1963 {
1964 TRACE("Overflow multiplying digits\n");
1965 return DISP_E_OVERFLOW;
1966 }
1967 ul64 = (ul64<<pNumprs->nBaseShift) + rgbDig[i];
1968 }
1969
1970 /* also make a negative representation */
1971 l64=-ul64;
1972
1973 /* Try signed and unsigned types in size order */
1974 if (dwVtBits & VTBIT_I1 && FITS_AS_I1(ul64))
1975 {
1976 V_VT(pVarDst) = VT_I1;
1977 V_I1(pVarDst) = ul64;
1978 return S_OK;
1979 }
1980 else if (dwVtBits & VTBIT_UI1 && FITS_AS_I1(ul64))
1981 {
1982 V_VT(pVarDst) = VT_UI1;
1983 V_UI1(pVarDst) = ul64;
1984 return S_OK;
1985 }
1986 else if (dwVtBits & VTBIT_I2 && FITS_AS_I2(ul64))
1987 {
1988 V_VT(pVarDst) = VT_I2;
1989 V_I2(pVarDst) = ul64;
1990 return S_OK;
1991 }
1992 else if (dwVtBits & VTBIT_UI2 && FITS_AS_I2(ul64))
1993 {
1994 V_VT(pVarDst) = VT_UI2;
1995 V_UI2(pVarDst) = ul64;
1996 return S_OK;
1997 }
1998 else if (dwVtBits & VTBIT_I4 && FITS_AS_I4(ul64))
1999 {
2000 V_VT(pVarDst) = VT_I4;
2001 V_I4(pVarDst) = ul64;
2002 return S_OK;
2003 }
2004 else if (dwVtBits & VTBIT_UI4 && FITS_AS_I4(ul64))
2005 {
2006 V_VT(pVarDst) = VT_UI4;
2007 V_UI4(pVarDst) = ul64;
2008 return S_OK;
2009 }
2010 else if (dwVtBits & VTBIT_I8 && ((ul64 <= I8_MAX)||(l64>=I8_MIN)))
2011 {
2012 V_VT(pVarDst) = VT_I8;
2013 V_I8(pVarDst) = ul64;
2014 return S_OK;
2015 }
2016 else if (dwVtBits & VTBIT_UI8)
2017 {
2018 V_VT(pVarDst) = VT_UI8;
2019 V_UI8(pVarDst) = ul64;
2020 return S_OK;
2021 }
2022 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2023 {
2024 V_VT(pVarDst) = VT_DECIMAL;
2025 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2026 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2027 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2028 return S_OK;
2029 }
2030 else if (dwVtBits & VTBIT_R4 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2031 {
2032 V_VT(pVarDst) = VT_R4;
2033 if (ul64 <= I4_MAX)
2034 V_R4(pVarDst) = ul64;
2035 else
2036 V_R4(pVarDst) = l64;
2037 return S_OK;
2038 }
2039 else if (dwVtBits & VTBIT_R8 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2040 {
2041 V_VT(pVarDst) = VT_R8;
2042 if (ul64 <= I4_MAX)
2043 V_R8(pVarDst) = ul64;
2044 else
2045 V_R8(pVarDst) = l64;
2046 return S_OK;
2047 }
2048
2049 TRACE("Overflow: possible return types: 0x%lx, value: %s\n", dwVtBits, wine_dbgstr_longlong(ul64));
2050 return DISP_E_OVERFLOW;
2051 }
2052
2053 /* Count the number of relevant fractional and whole digits stored,
2054 * And compute the divisor/multiplier to scale the number by.
2055 */
2056 if (pNumprs->nPwr10 < 0)
2057 {
2058 if (-pNumprs->nPwr10 >= pNumprs->cDig)
2059 {
2060 /* A real number < +/- 1.0 e.g. 0.1024 or 0.01024 */
2061 wholeNumberDigits = 0;
2062 fractionalDigits = pNumprs->cDig;
2063 divisor10 = -pNumprs->nPwr10;
2064 }
2065 else
2066 {
2067 /* An exactly represented real number e.g. 1.024 */
2068 wholeNumberDigits = pNumprs->cDig + pNumprs->nPwr10;
2069 fractionalDigits = pNumprs->cDig - wholeNumberDigits;
2070 divisor10 = pNumprs->cDig - wholeNumberDigits;
2071 }
2072 }
2073 else if (pNumprs->nPwr10 == 0)
2074 {
2075 /* An exactly represented whole number e.g. 1024 */
2076 wholeNumberDigits = pNumprs->cDig;
2077 fractionalDigits = 0;
2078 }
2079 else /* pNumprs->nPwr10 > 0 */
2080 {
2081 /* A whole number followed by nPwr10 0's e.g. 102400 */
2082 wholeNumberDigits = pNumprs->cDig;
2083 fractionalDigits = 0;
2084 multiplier10 = pNumprs->nPwr10;
2085 }
2086
2087 TRACE("cDig %d; nPwr10 %d, whole %d, frac %d ", pNumprs->cDig,
2088 pNumprs->nPwr10, wholeNumberDigits, fractionalDigits);
2089 TRACE("mult %d; div %d\n", multiplier10, divisor10);
2090
2091 if (dwVtBits & (INTEGER_VTBITS|VTBIT_DECIMAL) &&
2092 (!fractionalDigits || !(dwVtBits & (REAL_VTBITS|VTBIT_CY|VTBIT_DECIMAL))))
2093 {
2094 /* We have one or more integer output choices, and either:
2095 * 1) An integer input value, or
2096 * 2) A real number input value but no floating output choices.
2097 * Alternately, we have a DECIMAL output available and an integer input.
2098 *
2099 * So, place the integer value into pVarDst, using the smallest type
2100 * possible and preferring signed over unsigned types.
2101 */
2102 BOOL bOverflow = FALSE, bNegative;
2103 ULONG64 ul64 = 0;
2104 int i;
2105
2106 /* Convert the integer part of the number into a UI8 */
2107 for (i = 0; i < wholeNumberDigits; i++)
2108 {
2109 if (ul64 > (UI8_MAX / 10 - rgbDig[i]))
2110 {
2111 TRACE("Overflow multiplying digits\n");
2112 bOverflow = TRUE;
2113 break;
2114 }
2115 ul64 = ul64 * 10 + rgbDig[i];
2116 }
2117
2118 /* Account for the scale of the number */
2119 if (!bOverflow && multiplier10)
2120 {
2121 for (i = 0; i < multiplier10; i++)
2122 {
2123 if (ul64 > (UI8_MAX / 10))
2124 {
2125 TRACE("Overflow scaling number\n");
2126 bOverflow = TRUE;
2127 break;
2128 }
2129 ul64 = ul64 * 10;
2130 }
2131 }
2132
2133 /* If we have any fractional digits, round the value.
2134 * Note we don't have to do this if divisor10 is < 1,
2135 * because this means the fractional part must be < 0.5
2136 */
2137 if (!bOverflow && fractionalDigits && divisor10 > 0)
2138 {
2139 const BYTE* fracDig = rgbDig + wholeNumberDigits;
2140 BOOL bAdjust = FALSE;
2141
2142 TRACE("first decimal value is %d\n", *fracDig);
2143
2144 if (*fracDig > 5)
2145 bAdjust = TRUE; /* > 0.5 */
2146 else if (*fracDig == 5)
2147 {
2148 for (i = 1; i < fractionalDigits; i++)
2149 {
2150 if (fracDig[i])
2151 {
2152 bAdjust = TRUE; /* > 0.5 */
2153 break;
2154 }
2155 }
2156 /* If exactly 0.5, round only odd values */
2157 if (i == fractionalDigits && (ul64 & 1))
2158 bAdjust = TRUE;
2159 }
2160
2161 if (bAdjust)
2162 {
2163 if (ul64 == UI8_MAX)
2164 {
2165 TRACE("Overflow after rounding\n");
2166 bOverflow = TRUE;
2167 }
2168 ul64++;
2169 }
2170 }
2171
2172 /* Zero is not a negative number */
2173 bNegative = pNumprs->dwOutFlags & NUMPRS_NEG && ul64 ? TRUE : FALSE;
2174
2175 TRACE("Integer value is %lld, bNeg %d\n", ul64, bNegative);
2176
2177 /* For negative integers, try the signed types in size order */
2178 if (!bOverflow && bNegative)
2179 {
2180 if (dwVtBits & (VTBIT_I1|VTBIT_I2|VTBIT_I4|VTBIT_I8))
2181 {
2182 if (dwVtBits & VTBIT_I1 && ul64 <= -I1_MIN)
2183 {
2184 V_VT(pVarDst) = VT_I1;
2185 V_I1(pVarDst) = -ul64;
2186 return S_OK;
2187 }
2188 else if (dwVtBits & VTBIT_I2 && ul64 <= -I2_MIN)
2189 {
2190 V_VT(pVarDst) = VT_I2;
2191 V_I2(pVarDst) = -ul64;
2192 return S_OK;
2193 }
2194 else if (dwVtBits & VTBIT_I4 && ul64 <= -((LONGLONG)I4_MIN))
2195 {
2196 V_VT(pVarDst) = VT_I4;
2197 V_I4(pVarDst) = -ul64;
2198 return S_OK;
2199 }
2200 else if (dwVtBits & VTBIT_I8 && ul64 <= (ULONGLONG)I8_MAX + 1)
2201 {
2202 V_VT(pVarDst) = VT_I8;
2203 V_I8(pVarDst) = -ul64;
2204 return S_OK;
2205 }
2206 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2207 {
2208 /* Decimal is only output choice left - fast path */
2209 V_VT(pVarDst) = VT_DECIMAL;
2210 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_NEG,0);
2211 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2212 DEC_LO64(&V_DECIMAL(pVarDst)) = -ul64;
2213 return S_OK;
2214 }
2215 }
2216 }
2217 else if (!bOverflow)
2218 {
2219 /* For positive integers, try signed then unsigned types in size order */
2220 if (dwVtBits & VTBIT_I1 && ul64 <= I1_MAX)
2221 {
2222 V_VT(pVarDst) = VT_I1;
2223 V_I1(pVarDst) = ul64;
2224 return S_OK;
2225 }
2226 else if (dwVtBits & VTBIT_UI1 && ul64 <= UI1_MAX)
2227 {
2228 V_VT(pVarDst) = VT_UI1;
2229 V_UI1(pVarDst) = ul64;
2230 return S_OK;
2231 }
2232 else if (dwVtBits & VTBIT_I2 && ul64 <= I2_MAX)
2233 {
2234 V_VT(pVarDst) = VT_I2;
2235 V_I2(pVarDst) = ul64;
2236 return S_OK;
2237 }
2238 else if (dwVtBits & VTBIT_UI2 && ul64 <= UI2_MAX)
2239 {
2240 V_VT(pVarDst) = VT_UI2;
2241 V_UI2(pVarDst) = ul64;
2242 return S_OK;
2243 }
2244 else if (dwVtBits & VTBIT_I4 && ul64 <= I4_MAX)
2245 {
2246 V_VT(pVarDst) = VT_I4;
2247 V_I4(pVarDst) = ul64;
2248 return S_OK;
2249 }
2250 else if (dwVtBits & VTBIT_UI4 && ul64 <= UI4_MAX)
2251 {
2252 V_VT(pVarDst) = VT_UI4;
2253 V_UI4(pVarDst) = ul64;
2254 return S_OK;
2255 }
2256 else if (dwVtBits & VTBIT_I8 && ul64 <= I8_MAX)
2257 {
2258 V_VT(pVarDst) = VT_I8;
2259 V_I8(pVarDst) = ul64;
2260 return S_OK;
2261 }
2262 else if (dwVtBits & VTBIT_UI8)
2263 {
2264 V_VT(pVarDst) = VT_UI8;
2265 V_UI8(pVarDst) = ul64;
2266 return S_OK;
2267 }
2268 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2269 {
2270 /* Decimal is only output choice left - fast path */
2271 V_VT(pVarDst) = VT_DECIMAL;
2272 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2273 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2274 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2275 return S_OK;
2276 }
2277 }
2278 }
2279
2280 if (dwVtBits & REAL_VTBITS)
2281 {
2282 /* Try to put the number into a float or real */
2283 BOOL bOverflow = FALSE, bNegative = pNumprs->dwOutFlags & NUMPRS_NEG;
2284 double whole = 0.0;
2285 int i;
2286
2287 /* Convert the number into a double */
2288 for (i = 0; i < pNumprs->cDig; i++)
2289 whole = whole * 10.0 + rgbDig[i];
2290
2291 TRACE("Whole double value is %16.16g\n", whole);
2292
2293 /* Account for the scale */
2294 while (multiplier10 > 10)
2295 {
2296 if (whole > dblMaximums[10])
2297 {
2298 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2299 bOverflow = TRUE;
2300 break;
2301 }
2302 whole = whole * dblMultipliers[10];
2303 multiplier10 -= 10;
2304 }
2305 if (multiplier10)
2306 {
2307 if (whole > dblMaximums[multiplier10])
2308 {
2309 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2310 bOverflow = TRUE;
2311 }
2312 else
2313 whole = whole * dblMultipliers[multiplier10];
2314 }
2315
2316 TRACE("Scaled double value is %16.16g\n", whole);
2317
2318 while (divisor10 > 10)
2319 {
2320 if (whole < dblMinimums[10] && whole != 0)
2321 {
2322 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2323 bOverflow = TRUE;
2324 break;
2325 }
2326 whole = whole / dblMultipliers[10];
2327 divisor10 -= 10;
2328 }
2329 if (divisor10)
2330 {
2331 if (whole < dblMinimums[divisor10] && whole != 0)
2332 {
2333 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2334 bOverflow = TRUE;
2335 }
2336 else
2337 whole = whole / dblMultipliers[divisor10];
2338 }
2339 if (!bOverflow)
2340 TRACE("Final double value is %16.16g\n", whole);
2341
2342 if (dwVtBits & VTBIT_R4 &&
2343 ((whole <= R4_MAX && whole >= R4_MIN) || whole == 0.0))
2344 {
2345 TRACE("Set R4 to final value\n");
2346 V_VT(pVarDst) = VT_R4; /* Fits into a float */
2347 V_R4(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2348 return S_OK;
2349 }
2350
2351 if (dwVtBits & VTBIT_R8)
2352 {
2353 TRACE("Set R8 to final value\n");
2354 V_VT(pVarDst) = VT_R8; /* Fits into a double */
2355 V_R8(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2356 return S_OK;
2357 }
2358
2359 if (dwVtBits & VTBIT_CY)
2360 {
2361 if (SUCCEEDED(VarCyFromR8(bNegative ? -whole : whole, &V_CY(pVarDst))))
2362 {
2363 V_VT(pVarDst) = VT_CY; /* Fits into a currency */
2364 TRACE("Set CY to final value\n");
2365 return S_OK;
2366 }
2367 TRACE("Value Overflows CY\n");
2368 }
2369 }
2370
2371 if (dwVtBits & VTBIT_DECIMAL)
2372 {
2373 int i;
2374 ULONG carry;
2375 ULONG64 tmp;
2376 DECIMAL* pDec = &V_DECIMAL(pVarDst);
2377
2378 DECIMAL_SETZERO(*pDec);
2379 DEC_LO32(pDec) = 0;
2380
2381 if (pNumprs->dwOutFlags & NUMPRS_NEG)
2382 DEC_SIGN(pDec) = DECIMAL_NEG;
2383 else
2384 DEC_SIGN(pDec) = DECIMAL_POS;
2385
2386 /* Factor the significant digits */
2387 for (i = 0; i < pNumprs->cDig; i++)
2388 {
2389 tmp = (ULONG64)DEC_LO32(pDec) * 10 + rgbDig[i];
2390 carry = (ULONG)(tmp >> 32);
2391 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2392 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2393 carry = (ULONG)(tmp >> 32);
2394 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2395 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2396 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2397
2398 if (tmp >> 32 & UI4_MAX)
2399 {
2400 VarNumFromParseNum_DecOverflow:
2401 TRACE("Overflow\n");
2402 DEC_LO32(pDec) = DEC_MID32(pDec) = DEC_HI32(pDec) = UI4_MAX;
2403 return DISP_E_OVERFLOW;
2404 }
2405 }
2406
2407 /* Account for the scale of the number */
2408 while (multiplier10 > 0)
2409 {
2410 tmp = (ULONG64)DEC_LO32(pDec) * 10;
2411 carry = (ULONG)(tmp >> 32);
2412 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2413 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2414 carry = (ULONG)(tmp >> 32);
2415 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2416 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2417 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2418
2419 if (tmp >> 32 & UI4_MAX)
2420 goto VarNumFromParseNum_DecOverflow;
2421 multiplier10--;
2422 }
2423 DEC_SCALE(pDec) = divisor10;
2424
2425 V_VT(pVarDst) = VT_DECIMAL;
2426 return S_OK;
2427 }
2428 return DISP_E_OVERFLOW; /* No more output choices */
2429 }
2430
2431 /**********************************************************************
2432 * VarCat [OLEAUT32.318]
2433 *
2434 * Concatenates one variant onto another.
2435 *
2436 * PARAMS
2437 * left [I] First variant
2438 * right [I] Second variant
2439 * result [O] Result variant
2440 *
2441 * RETURNS
2442 * Success: S_OK.
2443 * Failure: An HRESULT error code indicating the error.
2444 */
2445 HRESULT WINAPI VarCat(LPVARIANT left, LPVARIANT right, LPVARIANT out)
2446 {
2447 VARTYPE leftvt,rightvt,resultvt;
2448 HRESULT hres;
2449 static const WCHAR str_true[] = {'T','r','u','e','\0'};
2450 static const WCHAR str_false[] = {'F','a','l','s','e','\0'};
2451 static const WCHAR sz_empty[] = {'\0'};
2452 leftvt = V_VT(left);
2453 rightvt = V_VT(right);
2454
2455 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2456 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), out);
2457
2458 /* when both left and right are NULL the result is NULL */
2459 if (leftvt == VT_NULL && rightvt == VT_NULL)
2460 {
2461 V_VT(out) = VT_NULL;
2462 return S_OK;
2463 }
2464
2465 hres = S_OK;
2466 resultvt = VT_EMPTY;
2467
2468 /* There are many special case for errors and return types */
2469 if (leftvt == VT_VARIANT && (rightvt == VT_ERROR ||
2470 rightvt == VT_DATE || rightvt == VT_DECIMAL))
2471 hres = DISP_E_TYPEMISMATCH;
2472 else if ((leftvt == VT_I2 || leftvt == VT_I4 ||
2473 leftvt == VT_R4 || leftvt == VT_R8 ||
2474 leftvt == VT_CY || leftvt == VT_BOOL ||
2475 leftvt == VT_BSTR || leftvt == VT_I1 ||
2476 leftvt == VT_UI1 || leftvt == VT_UI2 ||
2477 leftvt == VT_UI4 || leftvt == VT_I8 ||
2478 leftvt == VT_UI8 || leftvt == VT_INT ||
2479 leftvt == VT_UINT || leftvt == VT_EMPTY ||
2480 leftvt == VT_NULL || leftvt == VT_DATE ||
2481 leftvt == VT_DECIMAL)
2482 &&
2483 (rightvt == VT_I2 || rightvt == VT_I4 ||
2484 rightvt == VT_R4 || rightvt == VT_R8 ||
2485 rightvt == VT_CY || rightvt == VT_BOOL ||
2486 rightvt == VT_BSTR || rightvt == VT_I1 ||
2487 rightvt == VT_UI1 || rightvt == VT_UI2 ||
2488 rightvt == VT_UI4 || rightvt == VT_I8 ||
2489 rightvt == VT_UI8 || rightvt == VT_INT ||
2490 rightvt == VT_UINT || rightvt == VT_EMPTY ||
2491 rightvt == VT_NULL || rightvt == VT_DATE ||
2492 rightvt == VT_DECIMAL))
2493 resultvt = VT_BSTR;
2494 else if (rightvt == VT_ERROR && leftvt < VT_VOID)
2495 hres = DISP_E_TYPEMISMATCH;
2496 else if (leftvt == VT_ERROR && (rightvt == VT_DATE ||
2497 rightvt == VT_ERROR || rightvt == VT_DECIMAL))
2498 hres = DISP_E_TYPEMISMATCH;
2499 else if (rightvt == VT_DATE || rightvt == VT_ERROR ||
2500 rightvt == VT_DECIMAL)
2501 hres = DISP_E_BADVARTYPE;
2502 else if (leftvt == VT_ERROR || rightvt == VT_ERROR)
2503 hres = DISP_E_TYPEMISMATCH;
2504 else if (leftvt == VT_VARIANT)
2505 hres = DISP_E_TYPEMISMATCH;
2506 else if (rightvt == VT_VARIANT && (leftvt == VT_EMPTY ||
2507 leftvt == VT_NULL || leftvt == VT_I2 ||
2508 leftvt == VT_I4 || leftvt == VT_R4 ||
2509 leftvt == VT_R8 || leftvt == VT_CY ||
2510 leftvt == VT_DATE || leftvt == VT_BSTR ||
2511 leftvt == VT_BOOL || leftvt == VT_DECIMAL ||
2512 leftvt == VT_I1 || leftvt == VT_UI1 ||
2513 leftvt == VT_UI2 || leftvt == VT_UI4 ||
2514 leftvt == VT_I8 || leftvt == VT_UI8 ||
2515 leftvt == VT_INT || leftvt == VT_UINT))
2516 hres = DISP_E_TYPEMISMATCH;
2517 else
2518 hres = DISP_E_BADVARTYPE;
2519
2520 /* if resutl type is not S_OK, then no need to go further */
2521 if (hres != S_OK)
2522 {
2523 V_VT(out) = resultvt;
2524 return hres;
2525 }
2526 /* Else proceed with formatting inputs to strings */
2527 else
2528 {
2529 VARIANT bstrvar_left, bstrvar_right;
2530 V_VT(out) = VT_BSTR;
2531
2532 VariantInit(&bstrvar_left);
2533 VariantInit(&bstrvar_right);
2534
2535 /* Convert left side variant to string */
2536 if (leftvt != VT_BSTR)
2537 {
2538 if (leftvt == VT_BOOL)
2539 {
2540 /* Bools are handled as True/False strings instead of 0/-1 as in MSDN */
2541 V_VT(&bstrvar_left) = VT_BSTR;
2542 if (V_BOOL(left) == TRUE)
2543 V_BSTR(&bstrvar_left) = SysAllocString(str_true);
2544 else
2545 V_BSTR(&bstrvar_left) = SysAllocString(str_false);
2546 }
2547 /* Fill with empty string for later concat with right side */
2548 else if (leftvt == VT_NULL)
2549 {
2550 V_VT(&bstrvar_left) = VT_BSTR;
2551 V_BSTR(&bstrvar_left) = SysAllocString(sz_empty);
2552 }
2553 else
2554 {
2555 hres = VariantChangeTypeEx(&bstrvar_left,left,0,0,VT_BSTR);
2556 if (hres != S_OK) {
2557 VariantClear(&bstrvar_left);
2558 VariantClear(&bstrvar_right);
2559 if (leftvt == VT_NULL && (rightvt == VT_EMPTY ||
2560 rightvt == VT_NULL || rightvt == VT_I2 ||
2561 rightvt == VT_I4 || rightvt == VT_R4 ||
2562 rightvt == VT_R8 || rightvt == VT_CY ||
2563 rightvt == VT_DATE || rightvt == VT_BSTR ||
2564 rightvt == VT_BOOL || rightvt == VT_DECIMAL ||
2565 rightvt == VT_I1 || rightvt == VT_UI1 ||
2566 rightvt == VT_UI2 || rightvt == VT_UI4 ||
2567 rightvt == VT_I8 || rightvt == VT_UI8 ||
2568 rightvt == VT_INT || rightvt == VT_UINT))
2569 return DISP_E_BADVARTYPE;
2570 return hres;
2571 }
2572 }
2573 }
2574
2575 /* convert right side variant to string */
2576 if (rightvt != VT_BSTR)
2577 {
2578 if (rightvt == VT_BOOL)
2579 {
2580 /* Bools are handled as True/False strings instead of 0/-1 as in MSDN */
2581 V_VT(&bstrvar_right) = VT_BSTR;
2582 if (V_BOOL(right) == TRUE)
2583 V_BSTR(&bstrvar_right) = SysAllocString(str_true);
2584 else
2585 V_BSTR(&bstrvar_right) = SysAllocString(str_false);
2586 }
2587 /* Fill with empty string for later concat with right side */
2588 else if (rightvt == VT_NULL)
2589 {
2590 V_VT(&bstrvar_right) = VT_BSTR;
2591 V_BSTR(&bstrvar_right) = SysAllocString(sz_empty);
2592 }
2593 else
2594 {
2595 hres = VariantChangeTypeEx(&bstrvar_right,right,0,0,VT_BSTR);
2596 if (hres != S_OK) {
2597 VariantClear(&bstrvar_left);
2598 VariantClear(&bstrvar_right);
2599 if (rightvt == VT_NULL && (leftvt == VT_EMPTY ||
2600 leftvt == VT_NULL || leftvt == VT_I2 ||
2601 leftvt == VT_I4 || leftvt == VT_R4 ||
2602 leftvt == VT_R8 || leftvt == VT_CY ||
2603 leftvt == VT_DATE || leftvt == VT_BSTR ||
2604 leftvt == VT_BOOL || leftvt == VT_DECIMAL ||
2605 leftvt == VT_I1 || leftvt == VT_UI1 ||
2606 leftvt == VT_UI2 || leftvt == VT_UI4 ||
2607 leftvt == VT_I8 || leftvt == VT_UI8 ||
2608 leftvt == VT_INT || leftvt == VT_UINT))
2609 return DISP_E_BADVARTYPE;
2610 return hres;
2611 }
2612 }
2613 }
2614
2615 /* Concat the resulting strings together */
2616 if (leftvt == VT_BSTR && rightvt == VT_BSTR)
2617 VarBstrCat (V_BSTR(left), V_BSTR(right), &V_BSTR(out));
2618 else if (leftvt != VT_BSTR && rightvt != VT_BSTR)
2619 VarBstrCat (V_BSTR(&bstrvar_left), V_BSTR(&bstrvar_right), &V_BSTR(out));
2620 else if (leftvt != VT_BSTR && rightvt == VT_BSTR)
2621 VarBstrCat (V_BSTR(&bstrvar_left), V_BSTR(right), &V_BSTR(out));
2622 else if (leftvt == VT_BSTR && rightvt != VT_BSTR)
2623 VarBstrCat (V_BSTR(left), V_BSTR(&bstrvar_right), &V_BSTR(out));
2624
2625 VariantClear(&bstrvar_left);
2626 VariantClear(&bstrvar_right);
2627 return S_OK;
2628 }
2629 }
2630
2631
2632 /* Wrapper around VariantChangeTypeEx() which permits changing a
2633 variant with VT_RESERVED flag set. Needed by VarCmp. */
2634 static HRESULT _VarChangeTypeExWrap (VARIANTARG* pvargDest,
2635 VARIANTARG* pvargSrc, LCID lcid, USHORT wFlags, VARTYPE vt)
2636 {
2637 HRESULT res;
2638 VARTYPE flags;
2639
2640 flags = V_VT(pvargSrc) & ~VT_TYPEMASK;
2641 V_VT(pvargSrc) &= ~VT_RESERVED;
2642 res = VariantChangeTypeEx(pvargDest,pvargSrc,lcid,wFlags,vt);
2643 V_VT(pvargSrc) |= flags;
2644
2645 return res;
2646 }
2647
2648 /**********************************************************************
2649 * VarCmp [OLEAUT32.176]
2650 *
2651 * Compare two variants.
2652 *
2653 * PARAMS
2654 * left [I] First variant
2655 * right [I] Second variant
2656 * lcid [I] LCID (locale identifier) for the comparison
2657 * flags [I] Flags to be used in the comparision:
2658 * NORM_IGNORECASE, NORM_IGNORENONSPACE, NORM_IGNORESYMBOLS,
2659 * NORM_IGNOREWIDTH, NORM_IGNOREKANATYPE, NORM_IGNOREKASHIDA
2660 *
2661 * RETURNS
2662 * VARCMP_LT: left variant is less than right variant.
2663 * VARCMP_EQ: input variants are equal.
2664 * VARCMP_GT: left variant is greater than right variant.
2665 * VARCMP_NULL: either one of the input variants is NULL.
2666 * Failure: An HRESULT error code indicating the error.
2667 *
2668 * NOTES
2669 * Native VarCmp up to and including WinXP dosn't like as input variants
2670 * I1, UI2, VT_UI4, UI8 and UINT. INT is accepted only as left variant.
2671 *
2672 * If both input variants are ERROR then VARCMP_EQ will be returned, else
2673 * an ERROR variant will trigger an error.
2674 *
2675 * Both input variants can have VT_RESERVED flag set which is ignored
2676 * unless one and only one of the variants is a BSTR and the other one
2677 * is not an EMPTY variant. All four VT_RESERVED combinations have a
2678 * different meaning:
2679 * - BSTR and other: BSTR is always greater than the other variant.
2680 * - BSTR|VT_RESERVED and other: a string comparision is performed.
2681 * - BSTR and other|VT_RESERVED: If the BSTR is a number a numeric
2682 * comparision will take place else the BSTR is always greater.
2683 * - BSTR|VT_RESERVED and other|VT_RESERVED: It seems that the other
2684 * variant is ignored and the return value depends only on the sign
2685 * of the BSTR if it is a number else the BSTR is always greater. A
2686 * positive BSTR is greater, a negative one is smaller than the other
2687 * variant.
2688 *
2689 * SEE
2690 * VarBstrCmp for the lcid and flags usage.
2691 */
2692 HRESULT WINAPI VarCmp(LPVARIANT left, LPVARIANT right, LCID lcid, DWORD flags)
2693 {
2694 VARTYPE lvt, rvt, vt;
2695 VARIANT rv,lv;
2696 DWORD xmask;
2697 HRESULT rc;
2698
2699 TRACE("(%p->(%s%s),%p->(%s%s),0x%08lx,0x%08lx)\n", left, debugstr_VT(left),
2700 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), lcid, flags);
2701
2702 lvt = V_VT(left) & VT_TYPEMASK;
2703 rvt = V_VT(right) & VT_TYPEMASK;
2704 xmask = (1 << lvt) | (1 << rvt);
2705
2706 /* If we have any flag set except VT_RESERVED bail out.
2707 Same for the left input variant type > VT_INT and for the
2708 right input variant type > VT_I8. Yes, VT_INT is only supported
2709 as left variant. Go figure */
2710 if (((V_VT(left) | V_VT(right)) & ~VT_TYPEMASK & ~VT_RESERVED) ||
2711 lvt > VT_INT || rvt > VT_I8) {
2712 return DISP_E_BADVARTYPE;
2713 }
2714
2715 /* Don't ask me why but native VarCmp cannot handle: VT_I1, VT_UI2, VT_UI4,
2716 VT_UINT and VT_UI8. Tested with DCOM98, Win2k, WinXP */
2717 if (rvt == VT_INT || xmask & (VTBIT_I1 | VTBIT_UI2 | VTBIT_UI4 | VTBIT_UI8 |
2718 VTBIT_DISPATCH | VTBIT_VARIANT | VTBIT_UNKNOWN | VTBIT_15))
2719 return DISP_E_TYPEMISMATCH;
2720
2721 /* If both variants are VT_ERROR return VARCMP_EQ */
2722 if (xmask == VTBIT_ERROR)
2723 return VARCMP_EQ;
2724 else if (xmask & VTBIT_ERROR)
2725 return DISP_E_TYPEMISMATCH;
2726
2727 if (xmask & VTBIT_NULL)
2728 return VARCMP_NULL;
2729
2730 VariantInit(&lv);
2731 VariantInit(&rv);
2732
2733 /* Two BSTRs, ignore VT_RESERVED */
2734 if (xmask == VTBIT_BSTR)
2735 return VarBstrCmp(V_BSTR(left), V_BSTR(right), lcid, flags);
2736
2737 /* A BSTR and an other variant; we have to take care of VT_RESERVED */
2738 if (xmask & VTBIT_BSTR) {
2739 VARIANT *bstrv, *nonbv;
2740 VARTYPE nonbvt;
2741 int swap = 0;
2742
2743 /* Swap the variants so the BSTR is always on the left */
2744 if (lvt == VT_BSTR) {
2745 bstrv = left;
2746 nonbv = right;
2747 nonbvt = rvt;
2748 } else {
2749 swap = 1;
2750 bstrv = right;
2751 nonbv = left;
2752 nonbvt = lvt;
2753 }
2754
2755 /* BSTR and EMPTY: ignore VT_RESERVED */
2756 if (nonbvt == VT_EMPTY)
2757 rc = (!V_BSTR(bstrv) || !*V_BSTR(bstrv)) ? VARCMP_EQ : VARCMP_GT;
2758 else {
2759 VARTYPE breserv = V_VT(bstrv) & ~VT_TYPEMASK;
2760 VARTYPE nreserv = V_VT(nonbv) & ~VT_TYPEMASK;
2761
2762 if (!breserv && !nreserv)
2763 /* No VT_RESERVED set ==> BSTR always greater */
2764 rc = VARCMP_GT;
2765 else if (breserv && !nreserv) {
2766 /* BSTR has VT_RESERVED set. Do a string comparision */
2767 rc = VariantChangeTypeEx(&rv,nonbv,lcid,0,VT_BSTR);
2768 if (FAILED(rc))
2769 return rc;
2770 rc = VarBstrCmp(V_BSTR(bstrv), V_BSTR(&rv), lcid, flags);
2771 } else if (V_BSTR(bstrv) && *V_BSTR(bstrv)) {
2772 /* Non NULL nor empty BSTR */
2773 /* If the BSTR is not a number the BSTR is greater */
2774 rc = _VarChangeTypeExWrap(&lv,bstrv,lcid,0,VT_R8);
2775 if (FAILED(rc))
2776 rc = VARCMP_GT;
2777 else if (breserv && nreserv)
2778 /* FIXME: This is strange: with both VT_RESERVED set it
2779 looks like the result depends only on the sign of
2780 the BSTR number */
2781 rc = (V_R8(&lv) >= 0) ? VARCMP_GT : VARCMP_LT;
2782 else
2783 /* Numeric comparision, will be handled below.
2784 VARCMP_NULL used only to break out. */
2785 rc = VARCMP_NULL;
2786 VariantClear(&lv);
2787 VariantClear(&rv);
2788 } else
2789 /* Empty or NULL BSTR */
2790 rc = VARCMP_GT;
2791 }
2792 /* Fixup the return code if we swapped left and right */
2793 if (swap) {
2794 if (rc == VARCMP_GT)
2795 rc = VARCMP_LT;
2796 else if (rc == VARCMP_LT)
2797 rc = VARCMP_GT;
2798 }
2799 if (rc != VARCMP_NULL)
2800 return rc;
2801 }
2802
2803 if (xmask & VTBIT_DECIMAL)
2804 vt = VT_DECIMAL;
2805 else if (xmask & VTBIT_BSTR)
2806 vt = VT_R8;
2807 else if (xmask & VTBIT_R4)
2808 vt = VT_R4;
2809 else if (xmask & (VTBIT_R8 | VTBIT_DATE))
2810 vt = VT_R8;
2811 else if (xmask & VTBIT_CY)
2812 vt = VT_CY;
2813 else
2814 /* default to I8 */
2815 vt = VT_I8;
2816
2817 /* Coerce the variants */
2818 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2819 if (rc == DISP_E_OVERFLOW && vt != VT_R8) {
2820 /* Overflow, change to R8 */
2821 vt = VT_R8;
2822 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2823 }
2824 if (FAILED(rc))
2825 return rc;
2826 rc = _VarChangeTypeExWrap(&rv,right,lcid,0,vt);
2827 if (rc == DISP_E_OVERFLOW && vt != VT_R8) {
2828 /* Overflow, change to R8 */
2829 vt = VT_R8;
2830 rc = _VarChangeTypeExWrap(&lv,left,lcid,0,vt);
2831 if (FAILED(rc))
2832 return rc;
2833 rc = _VarChangeTypeExWrap(&rv,right,lcid,0,vt);
2834 }
2835 if (FAILED(rc))
2836 return rc;
2837
2838 #define _VARCMP(a,b) \
2839 (((a) == (b)) ? VARCMP_EQ : (((a) < (b)) ? VARCMP_LT : VARCMP_GT))
2840
2841 switch (vt) {
2842 case VT_CY:
2843 return VarCyCmp(V_CY(&lv), V_CY(&rv));
2844 case VT_DECIMAL:
2845 return VarDecCmp(&V_DECIMAL(&lv), &V_DECIMAL(&rv));
2846 case VT_I8:
2847 return _VARCMP(V_I8(&lv), V_I8(&rv));
2848 case VT_R4:
2849 return _VARCMP(V_R4(&lv), V_R4(&rv));
2850 case VT_R8:
2851 return _VARCMP(V_R8(&lv), V_R8(&rv));
2852 default:
2853 /* We should never get here */
2854 return E_FAIL;
2855 }
2856 #undef _VARCMP
2857 }
2858
2859 /**********************************************************************
2860 * VarAnd [OLEAUT32.142]
2861 *
2862 * Computes the logical AND of two variants.
2863 *
2864 * PARAMS
2865 * left [I] First variant
2866 * right [I] Second variant
2867 * result [O] Result variant
2868 *
2869 * RETURNS
2870 * Success: S_OK.
2871 * Failure: An HRESULT error code indicating the error.
2872 */
2873 HRESULT WINAPI VarAnd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2874 {
2875 HRESULT rc = E_FAIL;
2876
2877 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2878 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
2879
2880 if ((V_VT(left)&VT_TYPEMASK) == VT_BOOL &&
2881 (V_VT(right)&VT_TYPEMASK) == VT_BOOL) {
2882
2883 V_VT(result) = VT_BOOL;
2884 if (V_BOOL(left) && V_BOOL(right)) {
2885 V_BOOL(result) = VARIANT_TRUE;
2886 } else {
2887 V_BOOL(result) = VARIANT_FALSE;
2888 }
2889 rc = S_OK;
2890
2891 } else {
2892 /* Integers */
2893 BOOL lOk = TRUE;
2894 BOOL rOk = TRUE;
2895 LONGLONG lVal = -1;
2896 LONGLONG rVal = -1;
2897 LONGLONG res = -1;
2898 int resT = 0; /* Testing has shown I2 & I2 == I2, all else
2899 becomes I4, even unsigned ints (incl. UI2) */
2900
2901 lOk = TRUE;
2902 switch (V_VT(left)&VT_TYPEMASK) {
2903 case VT_I1 : lVal = V_I1(left); resT=VT_I4; break;
2904 case VT_I2 : lVal = V_I2(left); resT=VT_I2; break;
2905 case VT_I4 :
2906 case VT_INT : lVal = V_I4(left); resT=VT_I4; break;
2907 case VT_UI1 : lVal = V_UI1(left); resT=VT_I4; break;
2908 case VT_UI2 : lVal = V_UI2(left); resT=VT_I4; break;
2909 case VT_UI4 :
2910 case VT_UINT : lVal = V_UI4(left); resT=VT_I4; break;
2911 case VT_BOOL : rVal = V_BOOL(left); resT=VT_I4; break;
2912 default: lOk = FALSE;
2913 }
2914
2915 rOk = TRUE;
2916 switch (V_VT(right)&VT_TYPEMASK) {
2917 case VT_I1 : rVal = V_I1(right); resT=VT_I4; break;
2918 case VT_I2 : rVal = V_I2(right); resT=max(VT_I2, resT); break;
2919 case VT_I4 :
2920 case VT_INT : rVal = V_I4(right); resT=VT_I4; break;
2921 case VT_UI1 : rVal = V_UI1(right); resT=VT_I4; break;
2922 case VT_UI2 : rVal = V_UI2(right); resT=VT_I4; break;
2923 case VT_UI4 :
2924 case VT_UINT : rVal = V_UI4(right); resT=VT_I4; break;
2925 case VT_BOOL : rVal = V_BOOL(right); resT=VT_I4; break;
2926 default: rOk = FALSE;
2927 }
2928
2929 if (lOk && rOk) {
2930 res = (lVal & rVal);
2931 V_VT(result) = resT;
2932 switch (resT) {
2933 case VT_I2 : V_I2(result) = res; break;
2934 case VT_I4 : V_I4(result) = res; break;
2935 default:
2936 FIXME("Unexpected result variant type %x\n", resT);
2937 V_I4(result) = res;
2938 }
2939 rc = S_OK;
2940
2941 } else {
2942 FIXME("VarAnd stub\n");
2943 }
2944 }
2945
2946 TRACE("returning 0x%8lx (%s%s),%ld\n", rc, debugstr_VT(result),
2947 debugstr_VF(result), V_VT(result) == VT_I4 ? V_I4(result) : V_I2(result));
2948 return rc;
2949 }
2950
2951 /**********************************************************************
2952 * VarAdd [OLEAUT32.141]
2953 *
2954 * Add two variants.
2955 *
2956 * PARAMS
2957 * left [I] First variant
2958 * right [I] Second variant
2959 * result [O] Result variant
2960 *
2961 * RETURNS
2962 * Success: S_OK.
2963 * Failure: An HRESULT error code indicating the error.
2964 *
2965 * NOTES
2966 * Native VarAdd up to and including WinXP dosn't like as input variants
2967 * I1, UI2, UI4, UI8, INT and UINT.
2968 *
2969 * Native VarAdd dosn't check for NULL in/out pointers and crashes. We do the
2970 * same here.
2971 *
2972 * FIXME
2973 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
2974 * case.
2975 */
2976 HRESULT WINAPI VarAdd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2977 {
2978 HRESULT hres;
2979 VARTYPE lvt, rvt, resvt, tvt;
2980 VARIANT lv, rv, tv;
2981 double r8res;
2982
2983 /* Variant priority for coercion. Sorted from lowest to highest.
2984 VT_ERROR shows an invalid input variant type. */
2985 enum coerceprio { vt_EMPTY, vt_UI1, vt_I2, vt_I4, vt_I8, vt_BSTR,vt_R4,
2986 vt_R8, vt_CY, vt_DATE, vt_DECIMAL, vt_DISPATCH, vt_NULL,
2987 vt_ERROR };
2988 /* Mapping from priority to variant type. Keep in sync with coerceprio! */
2989 VARTYPE prio2vt[] = { VT_EMPTY, VT_UI1, VT_I2, VT_I4, VT_I8, VT_BSTR, VT_R4,
2990 VT_R8, VT_CY, VT_DATE, VT_DECIMAL, VT_DISPATCH,
2991 VT_NULL, VT_ERROR };
2992
2993 /* Mapping for coercion from input variant to priority of result variant. */
2994 static VARTYPE coerce[] = {
2995 /* VT_EMPTY, VT_NULL, VT_I2, VT_I4, VT_R4 */
2996 vt_EMPTY, vt_NULL, vt_I2, vt_I4, vt_R4,
2997 /* VT_R8, VT_CY, VT_DATE, VT_BSTR, VT_DISPATCH */
2998 vt_R8, vt_CY, vt_DATE, vt_BSTR, vt_DISPATCH,
2999 /* VT_ERROR, VT_BOOL, VT_VARIANT, VT_UNKNOWN, VT_DECIMAL */
3000 vt_ERROR, vt_I2, vt_ERROR, vt_ERROR, vt_DECIMAL,
3001 /* 15, VT_I1, VT_UI1, VT_UI2, VT_UI4 VT_I8 */
3002 vt_ERROR, vt_ERROR, vt_UI1, vt_ERROR, vt_ERROR, vt_I8
3003 };
3004
3005 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3006 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right),
3007 result);
3008
3009 VariantInit(&lv);
3010 VariantInit(&rv);
3011 VariantInit(&tv);
3012 lvt = V_VT(left)&VT_TYPEMASK;
3013 rvt = V_VT(right)&VT_TYPEMASK;
3014
3015 /* If we have any flag set (VT_ARRAY, VT_VECTOR, etc.) bail out.
3016 Same for any input variant type > VT_I8 */
3017 if (V_VT(left) & ~VT_TYPEMASK || V_VT(right) & ~VT_TYPEMASK ||
3018 lvt > VT_I8 || rvt > VT_I8) {
3019 hres = DISP_E_BADVARTYPE;
3020 goto end;
3021 }
3022
3023 /* Determine the variant type to coerce to. */
3024 if (coerce[lvt] > coerce[rvt]) {
3025 resvt = prio2vt[coerce[lvt]];
3026 tvt = prio2vt[coerce[rvt]];
3027 } else {
3028 resvt = prio2vt[coerce[rvt]];
3029 tvt = prio2vt[coerce[lvt]];
3030 }
3031
3032 /* Special cases where the result variant type is defined by both
3033 input variants and not only that with the highest priority */
3034 if (resvt == VT_BSTR) {
3035 if (tvt == VT_EMPTY || tvt == VT_BSTR)
3036 resvt = VT_BSTR;
3037 else
3038 resvt = VT_R8;
3039 }
3040 if (resvt == VT_R4 && (tvt == VT_BSTR || tvt == VT_I8 || tvt == VT_I4))
3041 resvt = VT_R8;
3042
3043 /* For overflow detection use the biggest compatible type for the
3044 addition */
3045 switch (resvt) {
3046 case VT_ERROR:
3047 hres = DISP_E_BADVARTYPE;
3048 goto end;
3049 case VT_NULL:
3050 hres = S_OK;
3051 V_VT(result) = VT_NULL;
3052 goto end;
3053 case VT_DISPATCH:
3054 FIXME("cannot handle variant type VT_DISPATCH\n");
3055 hres = DISP_E_TYPEMISMATCH;
3056 goto end;
3057 case VT_EMPTY:
3058 resvt = VT_I2;
3059 /* Fall through */
3060 case VT_UI1:
3061 case VT_I2:
3062 case VT_I4:
3063 case VT_I8:
3064 tvt = VT_I8;
3065 break;
3066 case VT_DATE:
3067 case VT_R4:
3068 tvt = VT_R8;
3069 break;
3070 default:
3071 tvt = resvt;
3072 }
3073
3074 /* Now coerce the variants */
3075 hres = VariantChangeType(&lv, left, 0, tvt);
3076 if (FAILED(hres))
3077 goto end;
3078 hres = VariantChangeType(&rv, right, 0, tvt);
3079 if (FAILED(hres))
3080 goto end;
3081
3082 /* Do the math */
3083 hres = S_OK;
3084 V_VT(result) = resvt;
3085 switch (tvt) {
3086 case VT_DECIMAL:
3087 hres = VarDecAdd(&V_DECIMAL(&lv), &V_DECIMAL(&rv),
3088 &V_DECIMAL(result));
3089 goto end;
3090 case VT_CY:
3091 hres = VarCyAdd(V_CY(&lv), V_CY(&rv), &V_CY(result));
3092 goto end;
3093 case VT_BSTR:
3094 /* We do not add those, we concatenate them. */
3095 hres = VarBstrCat(V_BSTR(&lv), V_BSTR(&rv), &V_BSTR(result));
3096 goto end;
3097 case VT_I8:
3098 /* Overflow detection */
3099 r8res = (double)V_I8(&lv) + (double)V_I8(&rv);
3100 if (r8res > (double)I8_MAX || r8res < (double)I8_MIN) {
3101 V_VT(result) = VT_R8;
3102 V_R8(result) = r8res;
3103 goto end;
3104 } else {
3105 V_VT(&tv) = tvt;
3106 V_I8(&tv) = V_I8(&lv) + V_I8(&rv);
3107 }
3108 break;
3109 case VT_R8:
3110 V_VT(&tv) = tvt;
3111 /* FIXME: overflow detection */
3112 V_R8(&tv) = V_R8(&lv) + V_R8(&rv);
3113 break;
3114 default:
3115 ERR("We shouldn't get here! tvt = %d!\n", tvt);
3116 break;
3117 }
3118 if (resvt != tvt) {
3119 if ((hres = VariantChangeType(result, &tv, 0, resvt)) != S_OK) {
3120 /* Overflow! Change to the vartype with the next higher priority.
3121 With one exception: I4 ==> R8 even if it would fit in I8 */
3122 if (resvt == VT_I4)
3123 resvt = VT_R8;
3124 else
3125 resvt = prio2vt[coerce[resvt] + 1];
3126 hres = VariantChangeType(result, &tv, 0, resvt);
3127 }
3128 } else
3129 hres = VariantCopy(result, &tv);
3130
3131 end:
3132 if (hres != S_OK) {
3133 V_VT(result) = VT_EMPTY;
3134 V_I4(result) = 0; /* No V_EMPTY */
3135 }
3136 VariantClear(&lv);
3137 VariantClear(&rv);
3138 VariantClear(&tv);
3139 TRACE("returning 0x%8lx (variant type %s)\n", hres, debugstr_VT(result));
3140 return hres;
3141 }
3142
3143 /**********************************************************************
3144 * VarMul [OLEAUT32.156]
3145 *
3146 * Multiply two variants.
3147 *
3148 * PARAMS
3149 * left [I] First variant
3150 * right [I] Second variant
3151 * result [O] Result variant
3152 *
3153 * RETURNS
3154 * Success: S_OK.
3155 * Failure: An HRESULT error code indicating the error.
3156 *
3157 * NOTES
3158 * Native VarMul up to and including WinXP dosn't like as input variants
3159 * I1, UI2, UI4, UI8, INT and UINT. But it can multiply apples with oranges.
3160 *
3161 * Native VarMul dosn't check for NULL in/out pointers and crashes. We do the
3162 * same here.
3163 *
3164 * FIXME
3165 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
3166 * case.
3167 */
3168 HRESULT WINAPI VarMul(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3169 {
3170 HRESULT hres;
3171 VARTYPE lvt, rvt, resvt, tvt;
3172 VARIANT lv, rv, tv;
3173 double r8res;
3174
3175 /* Variant priority for coercion. Sorted from lowest to highest.
3176 VT_ERROR shows an invalid input variant type. */
3177 enum coerceprio { vt_UI1 = 0, vt_I2, vt_I4, vt_I8, vt_CY, vt_R4, vt_R8,
3178 vt_DECIMAL, vt_NULL, vt_ERROR };
3179 /* Mapping from priority to variant type. Keep in sync with coerceprio! */
3180 VARTYPE prio2vt[] = { VT_UI1, VT_I2, VT_I4, VT_I8, VT_CY, VT_R4, VT_R8,
3181 VT_DECIMAL, VT_NULL, VT_ERROR };
3182
3183 /* Mapping for coercion from input variant to priority of result variant. */
3184 static VARTYPE coerce[] = {
3185 /* VT_EMPTY, VT_NULL, VT_I2, VT_I4, VT_R4 */
3186 vt_UI1, vt_NULL, vt_I2, vt_I4, vt_R4,
3187 /* VT_R8, VT_CY, VT_DATE, VT_BSTR, VT_DISPATCH */
3188 vt_R8, vt_CY, vt_R8, vt_R8, vt_ERROR,
3189 /* VT_ERROR, VT_BOOL, VT_VARIANT, VT_UNKNOWN, VT_DECIMAL */
3190 vt_ERROR, vt_I2, vt_ERROR, vt_ERROR, vt_DECIMAL,
3191 /* 15, VT_I1, VT_UI1, VT_UI2, VT_UI4 VT_I8 */
3192 vt_ERROR, vt_ERROR, vt_UI1, vt_ERROR, vt_ERROR, vt_I8
3193 };
3194
3195 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3196 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right),
3197 result);
3198
3199 VariantInit(&lv);
3200 VariantInit(&rv);
3201 VariantInit(&tv);
3202 lvt = V_VT(left)&VT_TYPEMASK;
3203 rvt = V_VT(right)&VT_TYPEMASK;
3204
3205 /* If we have any flag set (VT_ARRAY, VT_VECTOR, etc.) bail out.
3206 Same for any input variant type > VT_I8 */
3207 if (V_VT(left) & ~VT_TYPEMASK || V_VT(right) & ~VT_TYPEMASK ||
3208 lvt > VT_I8 || rvt > VT_I8) {
3209 hres = DISP_E_BADVARTYPE;
3210 goto end;
3211 }
3212
3213 /* Determine the variant type to coerce to. */
3214 if (coerce[lvt] > coerce[rvt]) {
3215 resvt = prio2vt[coerce[lvt]];
3216 tvt = prio2vt[coerce[rvt]];
3217 } else {
3218 resvt = prio2vt[coerce[rvt]];
3219 tvt = prio2vt[coerce[lvt]];
3220 }
3221
3222 /* Special cases where the result variant type is defined by both
3223 input variants and not only that with the highest priority */
3224 if (resvt == VT_R4 && (tvt == VT_CY || tvt == VT_I8 || tvt == VT_I4))
3225 resvt = VT_R8;
3226 if (lvt == VT_EMPTY && rvt == VT_EMPTY)
3227 resvt = VT_I2;
3228
3229 /* For overflow detection use the biggest compatible type for the
3230 multiplication */
3231 switch (resvt) {
3232 case VT_ERROR:
3233 hres = DISP_E_BADVARTYPE;
3234 goto end;
3235 case VT_NULL:
3236 hres = S_OK;
3237 V_VT(result) = VT_NULL;
3238 goto end;
3239 case VT_UI1:
3240 case VT_I2:
3241 case VT_I4:
3242 case VT_I8:
3243 tvt = VT_I8;
3244 break;
3245 case VT_R4:
3246 tvt = VT_R8;
3247 break;
3248 default:
3249 tvt = resvt;
3250 }
3251
3252 /* Now coerce the variants */
3253 hres = VariantChangeType(&lv, left, 0, tvt);
3254 if (FAILED(hres))
3255 goto end;
3256 hres = VariantChangeType(&rv, right, 0, tvt);
3257 if (FAILED(hres))
3258 goto end;
3259
3260 /* Do the math */
3261 hres = S_OK;
3262 V_VT(&tv) = tvt;
3263 V_VT(result) = resvt;
3264 switch (tvt) {
3265 case VT_DECIMAL:
3266 hres = VarDecMul(&V_DECIMAL(&lv), &V_DECIMAL(&rv),
3267 &V_DECIMAL(result));
3268 goto end;
3269 case VT_CY:
3270 hres = VarCyMul(V_CY(&lv), V_CY(&rv), &V_CY(result));
3271 goto end;
3272 case VT_I8:
3273 /* Overflow detection */
3274 r8res = (double)V_I8(&lv) * (double)V_I8(&rv);
3275 if (r8res > (double)I8_MAX || r8res < (double)I8_MIN) {
3276 V_VT(result) = VT_R8;
3277 V_R8(result) = r8res;
3278 goto end;
3279 } else
3280 V_I8(&tv) = V_I8(&lv) * V_I8(&rv);
3281 break;
3282 case VT_R8:
3283 /* FIXME: overflow detection */
3284 V_R8(&tv) = V_R8(&lv) * V_R8(&rv);
3285 break;
3286 default:
3287 ERR("We shouldn't get here! tvt = %d!\n", tvt);
3288 break;
3289 }
3290 if (resvt != tvt) {
3291 while ((hres = VariantChangeType(result, &tv, 0, resvt)) != S_OK) {
3292 /* Overflow! Change to the vartype with the next higher priority.
3293 With one exception: I4 ==> R8 even if it would fit in I8 */
3294 if (resvt == VT_I4)
3295 resvt = VT_R8;
3296 else
3297 resvt = prio2vt[coerce[resvt] + 1];
3298 }
3299 } else
3300 hres = VariantCopy(result, &tv);
3301
3302 end:
3303 if (hres != S_OK) {
3304 V_VT(result) = VT_EMPTY;
3305 V_I4(result) = 0; /* No V_EMPTY */
3306 }
3307 VariantClear(&lv);
3308 VariantClear(&rv);
3309 VariantClear(&tv);
3310 TRACE("returning 0x%8lx (variant type %s)\n", hres, debugstr_VT(result));
3311 return hres;
3312 }
3313
3314 /**********************************************************************
3315 * VarDiv [OLEAUT32.143]
3316 *
3317 * Divides one variant with another.
3318 *
3319 * PARAMS
3320 * left [I] First variant
3321 * right [I] Second variant
3322 * result [O] Result variant
3323 *
3324 * RETURNS
3325 * Success: S_OK.
3326 * Failure: An HRESULT error code indicating the error.
3327 */
3328 HRESULT WINAPI VarDiv(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3329 {
3330 HRESULT rc = E_FAIL;
3331 VARTYPE lvt,rvt,resvt;
3332 VARIANT lv,rv;
3333 BOOL found;
3334
3335 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3336 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
3337
3338 VariantInit(&lv);VariantInit(&rv);
3339 lvt = V_VT(left)&VT_TYPEMASK;
3340 rvt = V_VT(right)&VT_TYPEMASK;
3341 found = FALSE;resvt = VT_VOID;
3342 if (((1<<lvt) | (1<<rvt)) & (VTBIT_R4|VTBIT_R8|VTBIT_CY)) {
3343 found = TRUE;
3344 resvt = VT_R8;
3345 }
3346 if (!found && (((1<<lvt) | (1<<rvt)) & (VTBIT_DECIMAL))) {
3347 found = TRUE;
3348 resvt = VT_DECIMAL;
3349 }
3350 if (!found && (((1<<lvt) | (1<<rvt)) & (VTBIT_I1|VTBIT_I2|VTBIT_UI1|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|VTBIT_INT|VTBIT_UINT))) {
3351 found = TRUE;
3352 resvt = VT_I4;
3353 }
3354 if (!found) {
3355 FIXME("can't expand vt %d vs %d to a target type.\n",lvt,rvt);
3356 return E_FAIL;
3357 }
3358 rc = VariantChangeType(&lv, left, 0, resvt);
3359 if (FAILED(rc)) {
3360 FIXME("Could not convert 0x%x to %d?\n",V_VT(left),resvt);
3361 return rc;
3362 }
3363 rc = VariantChangeType(&rv, right, 0, resvt);
3364 if (FAILED(rc)) {
3365 FIXME("Could not convert 0x%x to %d?\n",V_VT(right),resvt);
3366 return rc;
3367 }
3368 switch (resvt) {
3369 case VT_R8:
3370 if (V_R8(&rv) == 0) return DISP_E_DIVBYZERO;
3371 V_VT(result) = resvt;
3372 V_R8(result) = V_R8(&lv) / V_R8(&rv);
3373 rc = S_OK;
3374 break;
3375 case VT_DECIMAL:
3376 rc = VarDecDiv(&(V_DECIMAL(&lv)), &(V_DECIMAL(&rv)), &(V_DECIMAL(result)));
3377 V_VT(result) = resvt;
3378 break;
3379 case VT_I4:
3380 if (V_I4(&rv) == 0) return DISP_E_DIVBYZERO;
3381 V_VT(result) = resvt;
3382 V_I4(result) = V_I4(&lv) / V_I4(&rv);
3383 rc = S_OK;
3384 break;
3385 }
3386 TRACE("returning 0x%8lx (%s%s),%g\n", rc, debugstr_VT(result),
3387 debugstr_VF(result), V_VT(result) == VT_R8 ? V_R8(result) : (double)V_I4(result));
3388 return rc;
3389 }
3390
3391 /**********************************************************************
3392 * VarSub [OLEAUT32.159]
3393 *
3394 * Subtract two variants.
3395 *
3396 * PARAMS
3397 * left [I] First variant
3398 * right [I] Second variant
3399 * result [O] Result variant
3400 *
3401 * RETURNS
3402 * Success: S_OK.
3403 * Failure: An HRESULT error code indicating the error.
3404 */
3405 HRESULT WINAPI VarSub(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3406 {
3407 HRESULT hres = S_OK;
3408 VARTYPE resvt = VT_EMPTY;
3409 VARTYPE leftvt,rightvt;
3410 VARTYPE rightExtraFlags,leftExtraFlags,ExtraFlags;
3411 VARIANT lv,rv;
3412
3413 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3414 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
3415
3416 leftvt = V_VT(left)&VT_TYPEMASK;
3417 rightvt = V_VT(right)&VT_TYPEMASK;
3418 leftExtraFlags = V_VT(left)&(~VT_TYPEMASK);
3419 rightExtraFlags = V_VT(right)&(~VT_TYPEMASK);
3420
3421 if (leftExtraFlags != rightExtraFlags)
3422 return DISP_E_BADVARTYPE;
3423 ExtraFlags = leftExtraFlags;
3424
3425 /* determine return type and return code */
3426 /* All extra flags produce errors */
3427 if (ExtraFlags == (VT_VECTOR|VT_BYREF|VT_RESERVED) ||
3428 ExtraFlags == (VT_VECTOR|VT_RESERVED) ||
3429 ExtraFlags == (VT_VECTOR|VT_BYREF) ||
3430 ExtraFlags == (VT_BYREF|VT_RESERVED) ||
3431 ExtraFlags == VT_VECTOR ||
3432 ExtraFlags == VT_BYREF ||
3433 ExtraFlags == VT_RESERVED)
3434 return DISP_E_BADVARTYPE;
3435 else if (ExtraFlags >= VT_ARRAY)
3436 return DISP_E_TYPEMISMATCH;
3437 /* Native VarSub cannot handle: VT_I1, VT_UI2, VT_UI4,
3438 VT_INT, VT_UINT and VT_UI8. Tested with WinXP */
3439 else if (leftvt == VT_CLSID || rightvt == VT_CLSID ||
3440 leftvt == VT_VARIANT || rightvt == VT_VARIANT ||
3441 leftvt == VT_I1 || rightvt == VT_I1 ||
3442 leftvt == VT_UI2 || rightvt == VT_UI2 ||
3443 leftvt == VT_UI4 || rightvt == VT_UI4 ||
3444 leftvt == VT_UI8 || rightvt == VT_UI8 ||
3445 leftvt == VT_INT || rightvt == VT_INT ||
3446 leftvt == VT_UINT || rightvt == VT_UINT ||
3447 leftvt == VT_UNKNOWN || rightvt == VT_UNKNOWN ||
3448 leftvt == VT_RECORD || rightvt == VT_RECORD)
3449 {
3450 if (leftvt == VT_RECORD && rightvt == VT_I8)
3451 return DISP_E_TYPEMISMATCH;
3452 else if (leftvt < VT_UI1 && rightvt == VT_RECORD)
3453 return DISP_E_TYPEMISMATCH;
3454 else if (leftvt >= VT_UI1 && rightvt == VT_RECORD)
3455 return DISP_E_TYPEMISMATCH;
3456 else if (leftvt == VT_RECORD && rightvt <= VT_UI1)
3457 return DISP_E_TYPEMISMATCH;
3458 else if (leftvt == VT_RECORD && rightvt > VT_UI1)
3459 return DISP_E_BADVARTYPE;
3460 else
3461 return DISP_E_BADVARTYPE;
3462 }
3463 /* The following flags/types are invalid for left variant */
3464 else if (!((leftvt <= VT_LPWSTR || leftvt == VT_RECORD ||
3465 leftvt == VT_CLSID) && leftvt != (VARTYPE)15 /* undefined vt */ &&
3466 (leftvt < VT_VOID || leftvt > VT_LPWSTR)))
3467 return DISP_E_BADVARTYPE;
3468 /* The following flags/types are invalid for right variant */
3469 else if (!((rightvt <= VT_LPWSTR || rightvt == VT_RECORD ||
3470 rightvt == VT_CLSID) && rightvt != (VARTYPE)15 /* undefined vt */ &&
3471 (rightvt < VT_VOID || rightvt > VT_LPWSTR)))
3472 return DISP_E_BADVARTYPE;
3473 else if ((leftvt == VT_NULL && rightvt == VT_DISPATCH) ||
3474 (leftvt == VT_DISPATCH && rightvt == VT_NULL))
3475 resvt = VT_NULL;
3476 else if (leftvt == VT_DISPATCH || rightvt == VT_DISPATCH ||
3477 leftvt == VT_ERROR || rightvt == VT_ERROR)
3478 return DISP_E_TYPEMISMATCH;
3479 else if (leftvt == VT_NULL || rightvt == VT_NULL)
3480 resvt = VT_NULL;
3481 else if ((leftvt == VT_EMPTY && rightvt == VT_BSTR) ||
3482 (leftvt == VT_DATE && rightvt == VT_DATE) ||
3483 (leftvt == VT_BSTR && rightvt == VT_EMPTY) ||
3484 (leftvt == VT_BSTR && rightvt == VT_BSTR))
3485 resvt = VT_R8;
3486 else if (leftvt == VT_DECIMAL || rightvt == VT_DECIMAL)
3487 resvt = VT_DECIMAL;
3488 else if (leftvt == VT_DATE || rightvt == VT_DATE)
3489 resvt = VT_DATE;
3490 else if (leftvt == VT_CY || rightvt == VT_CY)
3491 resvt = VT_CY;
3492 else if (leftvt == VT_R8 || rightvt == VT_R8)
3493 resvt = VT_R8;
3494 else if (leftvt == VT_BSTR || rightvt == VT_BSTR)
3495 resvt = VT_R8;
3496 else if (leftvt == VT_R4 || rightvt == VT_R4)
3497 {
3498 if (leftvt == VT_I4 || rightvt == VT_I4 ||
3499 leftvt == VT_I8 || rightvt == VT_I8)
3500 resvt = VT_R8;
3501 else
3502 resvt = VT_R4;
3503 }
3504 else if (leftvt == VT_I8 || rightvt == VT_I8)
3505 resvt = VT_I8;
3506 else if (leftvt == VT_I4 || rightvt == VT_I4)
3507 resvt = VT_I4;
3508 else if (leftvt == VT_I2 || rightvt == VT_I2 ||
3509 leftvt == VT_BOOL || rightvt == VT_BOOL ||
3510 (leftvt == VT_EMPTY && rightvt == VT_EMPTY))
3511 resvt = VT_I2;
3512 else if (leftvt == VT_UI1 || rightvt == VT_UI1)
3513 resvt = VT_UI1;
3514 else
3515 return DISP_E_TYPEMISMATCH;
3516
3517 VariantInit(&lv);
3518 VariantInit(&rv);
3519
3520 /* coerce to the result type */
3521 if (leftvt == VT_BSTR && rightvt == VT_DATE)
3522 hres = VariantChangeType(&lv, left, 0, VT_R8);
3523 else
3524 hres = VariantChangeType(&lv, left, 0, resvt);
3525 if (hres != S_OK)
3526 {
3527 VariantClear(&lv);
3528 VariantClear(&rv);
3529 return hres;
3530 }
3531 if (leftvt == VT_DATE && rightvt == VT_BSTR)
3532 hres = VariantChangeType(&rv, right, 0, VT_R8);
3533 else
3534 hres = VariantChangeType(&rv, right, 0, resvt);
3535 if (hres != S_OK)
3536 {
3537 VariantClear(&lv);
3538 VariantClear(&rv);
3539 return hres;
3540 }
3541
3542 /* do the math */
3543 V_VT(result) = resvt;
3544 switch (resvt)
3545 {
3546 case VT_NULL:
3547 break;
3548 case VT_DATE:
3549 V_DATE(result) = V_DATE(&lv) - V_DATE(&rv);
3550 break;
3551 case VT_CY:
3552 hres = VarCySub(V_CY(&lv), V_CY(&rv), &(V_CY(result)));
3553 break;
3554 case VT_R4:
3555 V_R4(result) = V_R4(&lv) - V_R4(&rv);
3556 break;
3557 case VT_I8:
3558 V_I8(result) = V_I8(&lv) - V_I8(&rv);
3559 break;
3560 case VT_I4:
3561 V_I4(result) = V_I4(&lv) - V_I4(&rv);
3562 break;
3563 case VT_I2:
3564 V_I2(result) = V_I2(&lv) - V_I2(&rv);
3565 break;
3566 case VT_I1:
3567 V_I1(result) = V_I1(&lv) - V_I1(&rv);
3568 break;
3569 case VT_UI1:
3570 V_UI1(result) = V_UI2(&lv) - V_UI1(&rv);
3571 break;
3572 case VT_R8:
3573 V_R8(result) = V_R8(&lv) - V_R8(&rv);
3574 break;
3575 case VT_DECIMAL:
3576 hres = VarDecSub(&(V_DECIMAL(&lv)), &(V_DECIMAL(&rv)), &(V_DECIMAL(result)));
3577 break;
3578 }
3579
3580 VariantClear(&lv);
3581 VariantClear(&rv);
3582
3583 return hres;
3584 }
3585
3586
3587 /**********************************************************************
3588 * VarOr [OLEAUT32.157]
3589 *
3590 * Perform a logical or (OR) operation on two variants.
3591 *
3592 * PARAMS
3593 * pVarLeft [I] First variant
3594 * pVarRight [I] Variant to OR with pVarLeft
3595 * pVarOut [O] Destination for OR result
3596 *
3597 * RETURNS
3598 * Success: S_OK. pVarOut contains the result of the operation with its type
3599 * taken from the table listed under VarXor().
3600 * Failure: An HRESULT error code indicating the error.
3601 *
3602 * NOTES
3603 * See the Notes section of VarXor() for further information.
3604 */
3605 HRESULT WINAPI VarOr(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
3606 {
3607 VARTYPE vt = VT_I4;
3608 VARIANT varLeft, varRight, varStr;
3609 HRESULT hRet;
3610
3611 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
3612 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
3613 debugstr_VF(pVarRight), pVarOut);
3614
3615 if (V_EXTRA_TYPE(pVarLeft) || V_EXTRA_TYPE(pVarRight) ||
3616 V_VT(pVarLeft) == VT_UNKNOWN || V_VT(pVarRight) == VT_UNKNOWN ||
3617 V_VT(pVarLeft) == VT_DISPATCH || V_VT(pVarRight) == VT_DISPATCH ||
3618 V_VT(pVarLeft) == VT_RECORD || V_VT(pVarRight) == VT_RECORD)
3619 return DISP_E_BADVARTYPE;
3620
3621 V_VT(&varLeft) = V_VT(&varRight) = V_VT(&varStr) = VT_EMPTY;
3622
3623 if (V_VT(pVarLeft) == VT_NULL || V_VT(pVarRight) == VT_NULL)
3624 {
3625 /* NULL OR Zero is NULL, NULL OR value is value */
3626 if (V_VT(pVarLeft) == VT_NULL)
3627 pVarLeft = pVarRight; /* point to the non-NULL var */
3628
3629 V_VT(pVarOut) = VT_NULL;
3630 V_I4(pVarOut) = 0;
3631
3632 switch (V_VT(pVarLeft))
3633 {
3634 case VT_DATE: case VT_R8:
3635 if (V_R8(pVarLeft))
3636 goto VarOr_AsEmpty;
3637 return S_OK;
3638 case VT_BOOL:
3639 if (V_BOOL(pVarLeft))
3640 *pVarOut = *pVarLeft;
3641 return S_OK;
3642 case VT_I2: case VT_UI2:
3643 if (V_I2(pVarLeft))
3644 goto VarOr_AsEmpty;
3645 return S_OK;
3646 case VT_I1:
3647 if (V_I1(pVarLeft))
3648 goto VarOr_AsEmpty;
3649 return S_OK;
3650 case VT_UI1:
3651 if (V_UI1(pVarLeft))
3652 *pVarOut = *pVarLeft;
3653 return S_OK;
3654 case VT_R4:
3655 if (V_R4(pVarLeft))
3656 goto VarOr_AsEmpty;
3657 return S_OK;
3658 case VT_I4: case VT_UI4: case VT_INT: case VT_UINT:
3659 if (V_I4(pVarLeft))
3660 goto VarOr_AsEmpty;
3661 return S_OK;
3662 case VT_CY:
3663 if (V_CY(pVarLeft).int64)
3664 goto VarOr_AsEmpty;
3665 return S_OK;
3666 case VT_I8: case VT_UI8:
3667 if (V_I8(pVarLeft))
3668 goto VarOr_AsEmpty;
3669 return S_OK;
3670 case VT_DECIMAL:
3671 if (DEC_HI32(&V_DECIMAL(pVarLeft)) || DEC_LO64(&V_DECIMAL(pVarLeft)))
3672 goto VarOr_AsEmpty;
3673 return S_OK;
3674 case VT_BSTR:
3675 {
3676 VARIANT_BOOL b;
3677
3678 if (!V_BSTR(pVarLeft))
3679 return DISP_E_BADVARTYPE;
3680
3681 hRet = VarBoolFromStr(V_BSTR(pVarLeft), LOCALE_USER_DEFAULT, VAR_LOCALBOOL, &b);
3682 if (SUCCEEDED(hRet) && b)
3683 {
3684 V_VT(pVarOut) = VT_BOOL;
3685 V_BOOL(pVarOut) = b;
3686 }
3687 return hRet;
3688 }
3689 case VT_NULL: case VT_EMPTY:
3690 V_VT(pVarOut) = VT_NULL;
3691 return S_OK;
3692 default:
3693 return DISP_E_BADVARTYPE;
3694 }
3695 }
3696
3697 if (V_VT(pVarLeft) == VT_EMPTY || V_VT(pVarRight) == VT_EMPTY)
3698 {
3699 if (V_VT(pVarLeft) == VT_EMPTY)
3700 pVarLeft = pVarRight; /* point to the non-EMPTY var */
3701
3702 VarOr_AsEmpty:
3703 /* Since one argument is empty (0), OR'ing it with the other simply
3704 * gives the others value (as 0|x => x). So just convert the other
3705 * argument to the required result type.
3706 */
3707 switch (V_VT(pVarLeft))
3708 {
3709 case VT_BSTR:
3710 if (!V_BSTR(pVarLeft))
3711 return DISP_E_BADVARTYPE;
3712
3713 hRet = VariantCopy(&varStr, pVarLeft);
3714 if (FAILED(hRet))
3715 goto VarOr_Exit;
3716 pVarLeft = &varStr;
3717 hRet = VariantChangeType(pVarLeft, pVarLeft, 0, VT_BOOL);
3718 if (FAILED(hRet))
3719 goto VarOr_Exit;
3720 /* Fall Through ... */
3721 case VT_EMPTY: case VT_UI1: case VT_BOOL: case VT_I2:
3722 V_VT(pVarOut) = VT_I2;
3723 break;
3724 case VT_DATE: case VT_CY: case VT_DECIMAL: case VT_R4: case VT_R8:
3725 case VT_I1: case VT_UI2: case VT_I4: case VT_UI4:
3726 case VT_INT: case VT_UINT: case VT_UI8:
3727 V_VT(pVarOut) = VT_I4;
3728 break;
3729 case VT_I8:
3730 V_VT(pVarOut) = VT_I8;
3731 break;
3732 default:
3733 return DISP_E_BADVARTYPE;
3734 }
3735 hRet = VariantCopy(&varLeft, pVarLeft);
3736 if (FAILED(hRet))
3737 goto VarOr_Exit;
3738 pVarLeft = &varLeft;
3739 hRet = VariantChangeType(pVarOut, pVarLeft, 0, V_VT(pVarOut));
3740 goto VarOr_Exit;
3741 }
3742
3743 if (V_VT(pVarLeft) == VT_BOOL && V_VT(pVarRight) == VT_BOOL)
3744 {
3745 V_VT(pVarOut) = VT_BOOL;
3746 V_BOOL(pVarOut) = V_BOOL(pVarLeft) | V_BOOL(pVarRight);
3747 return S_OK;
3748 }
3749
3750 if (V_VT(pVarLeft) == VT_UI1 && V_VT(pVarRight) == VT_UI1)
3751 {
3752 V_VT(pVarOut) = VT_UI1;
3753 V_UI1(pVarOut) = V_UI1(pVarLeft) | V_UI1(pVarRight);
3754 return S_OK;
3755 }
3756
3757 if (V_VT(pVarLeft) == VT_BSTR)
3758 {
3759 hRet = VariantCopy(&varStr, pVarLeft);
3760 if (FAILED(hRet))
3761 goto VarOr_Exit;
3762 pVarLeft = &varStr;
3763 hRet = VariantChangeType(pVarLeft, pVarLeft, 0, VT_BOOL);
3764 if (FAILED(hRet))
3765 goto VarOr_Exit;
3766 }
3767
3768 if (V_VT(pVarLeft) == VT_BOOL &&
3769 (V_VT(pVarRight) == VT_BOOL || V_VT(pVarRight) == VT_BSTR))
3770 {
3771 vt = VT_BOOL;
3772 }
3773 else if ((V_VT(pVarLeft) == VT_BOOL || V_VT(pVarLeft) == VT_UI1 ||
3774 V_VT(pVarLeft) == VT_I2 || V_VT(pVarLeft) == VT_BSTR) &&
3775 (V_VT(pVarRight) == VT_BOOL || V_VT(pVarRight) == VT_UI1 ||
3776 V_VT(pVarRight) == VT_I2 || V_VT(pVarRight) == VT_BSTR))
3777 {
3778 vt = VT_I2;
3779 }
3780 else if (V_VT(pVarLeft) == VT_I8 || V_VT(pVarRight) == VT_I8)
3781 {
3782 if (V_VT(pVarLeft) == VT_INT || V_VT(pVarRight) == VT_INT)
3783 return DISP_E_TYPEMISMATCH;
3784 vt = VT_I8;
3785 }
3786
3787 hRet = VariantCopy(&varLeft, pVarLeft);
3788 if (FAILED(hRet))
3789 goto VarOr_Exit;
3790
3791 hRet = VariantCopy(&varRight, pVarRight);
3792 if (FAILED(hRet))
3793 goto VarOr_Exit;
3794
3795 if (vt == VT_I4 && V_VT(&varLeft) == VT_UI4)
3796 V_VT(&varLeft) = VT_I4; /* Don't overflow */
3797 else
3798 {
3799 double d;
3800
3801 if (V_VT(&varLeft) == VT_BSTR &&
3802 FAILED(VarR8FromStr(V_BSTR(&varLeft), LOCALE_USER_DEFAULT, 0, &d)))
3803 hRet = VariantChangeType(&varLeft, &varLeft, VARIANT_LOCALBOOL, VT_BOOL);
3804 if (SUCCEEDED(hRet) && V_VT(&varLeft) != vt)
3805 hRet = VariantChangeType(&varLeft, &varLeft, 0, vt);
3806 if (FAILED(hRet))
3807 goto VarOr_Exit;
3808 }
3809
3810 if (vt == VT_I4 && V_VT(&varRight) == VT_UI4)
3811 V_VT(&varRight) = VT_I4; /* Don't overflow */
3812 else
3813 {
3814 double d;
3815
3816 if (V_VT(&varRight) == VT_BSTR &&
3817 FAILED(VarR8FromStr(V_BSTR(&varRight), LOCALE_USER_DEFAULT, 0, &d)))
3818 hRet = VariantChangeType(&varRight, &varRight, VARIANT_LOCALBOOL, VT_BOOL);
3819 if (SUCCEEDED(hRet) && V_VT(&varRight) != vt)
3820 hRet = VariantChangeType(&varRight, &varRight, 0, vt);
3821 if (FAILED(hRet))
3822 goto VarOr_Exit;
3823 }
3824
3825 V_VT(pVarOut) = vt;
3826 if (vt == VT_I8)
3827 {
3828 V_I8(pVarOut) = V_I8(&varLeft) | V_I8(&varRight);
3829 }
3830 else if (vt == VT_I4)
3831 {
3832 V_I4(pVarOut) = V_I4(&varLeft) | V_I4(&varRight);
3833 }
3834 else
3835 {
3836 V_I2(pVarOut) = V_I2(&varLeft) | V_I2(&varRight);
3837 }
3838
3839 VarOr_Exit:
3840 VariantClear(&varStr);
3841 VariantClear(&varLeft);
3842 VariantClear(&varRight);
3843 return hRet;
3844 }
3845
3846 /**********************************************************************
3847 * VarAbs [OLEAUT32.168]
3848 *
3849 * Convert a variant to its absolute value.
3850 *
3851 * PARAMS
3852 * pVarIn [I] Source variant
3853 * pVarOut [O] Destination for converted value
3854 *
3855 * RETURNS
3856 * Success: S_OK. pVarOut contains the absolute value of pVarIn.
3857 * Failure: An HRESULT error code indicating the error.
3858 *
3859 * NOTES
3860 * - This function does not process by-reference variants.
3861 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3862 * according to the following table:
3863 *| Input Type Output Type
3864 *| ---------- -----------
3865 *| VT_BOOL VT_I2
3866 *| VT_BSTR VT_R8
3867 *| (All others) Unchanged
3868 */
3869 HRESULT WINAPI VarAbs(LPVARIANT pVarIn, LPVARIANT pVarOut)
3870 {
3871 VARIANT varIn;
3872 HRESULT hRet = S_OK;
3873
3874 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3875 debugstr_VF(pVarIn), pVarOut);
3876
3877 if (V_ISARRAY(pVarIn) || V_VT(pVarIn) == VT_UNKNOWN ||
3878 V_VT(pVarIn) == VT_DISPATCH || V_VT(pVarIn) == VT_RECORD ||
3879 V_VT(pVarIn) == VT_ERROR)
3880 return DISP_E_TYPEMISMATCH;
3881
3882 *pVarOut = *pVarIn; /* Shallow copy the value, and invert it if needed */
3883
3884 #define ABS_CASE(typ,min) \
3885 case VT_##typ: if (V_##typ(pVarIn) == min) hRet = DISP_E_OVERFLOW; \
3886 else if (V_##typ(pVarIn) < 0) V_##typ(pVarOut) = -V_##typ(pVarIn); \
3887 break
3888
3889 switch (V_VT(pVarIn))
3890 {
3891 ABS_CASE(I1,I1_MIN);
3892 case VT_BOOL:
3893 V_VT(pVarOut) = VT_I2;
3894 /* BOOL->I2, Fall through ... */
3895 ABS_CASE(I2,I2_MIN);
3896 case VT_INT:
3897 ABS_CASE(I4,I4_MIN);
3898 ABS_CASE(I8,I8_MIN);
3899 ABS_CASE(R4,R4_MIN);
3900 case VT_BSTR:
3901 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
3902 if (FAILED(hRet))
3903 break;
3904 V_VT(pVarOut) = VT_R8;
3905 pVarIn = &varIn;
3906 /* Fall through ... */
3907 case VT_DATE:
3908 ABS_CASE(R8,R8_MIN);
3909 case VT_CY:
3910 hRet = VarCyAbs(V_CY(pVarIn), & V_CY(pVarOut));
3911 break;
3912 case VT_DECIMAL:
3913 DEC_SIGN(&V_DECIMAL(pVarOut)) &= ~DECIMAL_NEG;
3914 break;
3915 case VT_UI1:
3916 case VT_UI2:
3917 case VT_UINT:
3918 case VT_UI4:
3919 case VT_UI8:
3920 /* No-Op */
3921 break;
3922 case VT_EMPTY:
3923 V_VT(pVarOut) = VT_I2;
3924 case VT_NULL:
3925 V_I2(pVarOut) = 0;
3926 break;
3927 default:
3928 hRet = DISP_E_BADVARTYPE;
3929 }
3930
3931 return hRet;
3932 }
3933
3934 /**********************************************************************
3935 * VarFix [OLEAUT32.169]
3936 *
3937 * Truncate a variants value to a whole number.
3938 *
3939 * PARAMS
3940 * pVarIn [I] Source variant
3941 * pVarOut [O] Destination for converted value
3942 *
3943 * RETURNS
3944 * Success: S_OK. pVarOut contains the converted value.
3945 * Failure: An HRESULT error code indicating the error.
3946 *
3947 * NOTES
3948 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3949 * according to the following table:
3950 *| Input Type Output Type
3951 *| ---------- -----------
3952 *| VT_BOOL VT_I2
3953 *| VT_EMPTY VT_I2
3954 *| VT_BSTR VT_R8
3955 *| All Others Unchanged
3956 * - The difference between this function and VarInt() is that VarInt() rounds
3957 * negative numbers away from 0, while this function rounds them towards zero.
3958 */
3959 HRESULT WINAPI VarFix(LPVARIANT pVarIn, LPVARIANT pVarOut)
3960 {
3961 HRESULT hRet = S_OK;
3962
3963 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3964 debugstr_VF(pVarIn), pVarOut);
3965
3966 V_VT(pVarOut) = V_VT(pVarIn);
3967
3968 switch (V_VT(pVarIn))
3969 {
3970 case VT_UI1:
3971 V_UI1(pVarOut) = V_UI1(pVarIn);
3972 break;
3973 case VT_BOOL:
3974 V_VT(pVarOut) = VT_I2;
3975 /* Fall through */
3976 case VT_I2:
3977 V_I2(pVarOut) = V_I2(pVarIn);
3978 break;
3979 case VT_I4:
3980 V_I4(pVarOut) = V_I4(pVarIn);
3981 break;
3982 case VT_I8:
3983 V_I8(pVarOut) = V_I8(pVarIn);
3984 break;
3985 case VT_R4:
3986 if (V_R4(pVarIn) < 0.0f)
3987 V_R4(pVarOut) = (float)ceil(V_R4(pVarIn));
3988 else
3989 V_R4(pVarOut) = (float)floor(V_R4(pVarIn));
3990 break;
3991 case VT_BSTR:
3992 V_VT(pVarOut) = VT_R8;
3993 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
3994 pVarIn = pVarOut;
3995 /* Fall through */
3996 case VT_DATE:
3997 case VT_R8:
3998 if (V_R8(pVarIn) < 0.0)
3999 V_R8(pVarOut) = ceil(V_R8(pVarIn));
4000 else
4001 V_R8(pVarOut) = floor(V_R8(pVarIn));
4002 break;
4003 case VT_CY:
4004 hRet = VarCyFix(V_CY(pVarIn), &V_CY(pVarOut));
4005 break;
4006 case VT_DECIMAL:
4007 hRet = VarDecFix(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
4008 break;
4009 case VT_EMPTY:
4010 V_VT(pVarOut) = VT_I2;
4011 V_I2(pVarOut) = 0;
4012 break;
4013 case VT_NULL:
4014 /* No-Op */
4015 break;
4016 default:
4017 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
4018 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
4019 hRet = DISP_E_BADVARTYPE;
4020 else
4021 hRet = DISP_E_TYPEMISMATCH;
4022 }
4023 if (FAILED(hRet))
4024 V_VT(pVarOut) = VT_EMPTY;
4025
4026 return hRet;
4027 }
4028
4029 /**********************************************************************
4030 * VarInt [OLEAUT32.172]
4031 *
4032 * Truncate a variants value to a whole number.
4033 *
4034 * PARAMS
4035 * pVarIn [I] Source variant
4036 * pVarOut [O] Destination for converted value
4037 *
4038 * RETURNS
4039 * Success: S_OK. pVarOut contains the converted value.
4040 * Failure: An HRESULT error code indicating the error.
4041 *
4042 * NOTES
4043 * - The type of the value stored in pVarOut depends on the type of pVarIn,
4044 * according to the following table:
4045 *| Input Type Output Type
4046 *| ---------- -----------
4047 *| VT_BOOL VT_I2
4048 *| VT_EMPTY VT_I2
4049 *| VT_BSTR VT_R8
4050 *| All Others Unchanged
4051 * - The difference between this function and VarFix() is that VarFix() rounds
4052 * negative numbers towards 0, while this function rounds them away from zero.
4053 */
4054 HRESULT WINAPI VarInt(LPVARIANT pVarIn, LPVARIANT pVarOut)
4055 {
4056 HRESULT hRet = S_OK;
4057
4058 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
4059 debugstr_VF(pVarIn), pVarOut);
4060
4061 V_VT(pVarOut) = V_VT(pVarIn);
4062
4063 switch (V_VT(pVarIn))
4064 {
4065 case VT_R4:
4066 V_R4(pVarOut) = (float)floor(V_R4(pVarIn));
4067 break;
4068 case VT_BSTR:
4069 V_VT(pVarOut) = VT_R8;
4070 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
4071 pVarIn = pVarOut;
4072 /* Fall through */
4073 case VT_DATE:
4074 case VT_R8:
4075 V_R8(pVarOut) = floor(V_R8(pVarIn));
4076 break;
4077 case VT_CY:
4078 hRet = VarCyInt(V_CY(pVarIn), &V_CY(pVarOut));
4079 break;
4080 case VT_DECIMAL:
4081 hRet = VarDecInt(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
4082 break;
4083 default:
4084 return VarFix(pVarIn, pVarOut);
4085 }
4086
4087 return hRet;
4088 }
4089
4090 /**********************************************************************
4091 * VarXor [OLEAUT32.167]
4092 *
4093 * Perform a logical exclusive-or (XOR) operation on two variants.
4094 *
4095 * PARAMS
4096 * pVarLeft [I] First variant
4097 * pVarRight [I] Variant to XOR with pVarLeft
4098 * pVarOut [O] Destination for XOR result
4099 *
4100 * RETURNS
4101 * Success: S_OK. pVarOut contains the result of the operation with its type
4102 * taken from the table below).
4103 * Failure: An HRESULT error code indicating the error.
4104 *
4105 * NOTES
4106 * - Neither pVarLeft or pVarRight are modified by this function.
4107 * - This function does not process by-reference variants.
4108 * - Input types of VT_BSTR may be numeric strings or boolean text.
4109 * - The type of result stored in pVarOut depends on the types of pVarLeft
4110 * and pVarRight, and will be one of VT_UI1, VT_I2, VT_I4, VT_I8, VT_BOOL,
4111 * or VT_NULL if the function succeeds.
4112 * - Type promotion is inconsistent and as a result certain combinations of
4113 * values will return DISP_E_OVERFLOW even when they could be represented.
4114 * This matches the behaviour of native oleaut32.
4115 */
4116 HRESULT WINAPI VarXor(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
4117 {
4118 VARTYPE vt;
4119 VARIANT varLeft, varRight;
4120 double d;
4121 HRESULT hRet;
4122
4123 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
4124 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
4125 debugstr_VF(pVarRight), pVarOut);
4126
4127 if (V_EXTRA_TYPE(pVarLeft) || V_EXTRA_TYPE(pVarRight) ||
4128 V_VT(pVarLeft) > VT_UINT || V_VT(pVarRight) > VT_UINT ||
4129 V_VT(pVarLeft) == VT_VARIANT || V_VT(pVarRight) == VT_VARIANT ||
4130 V_VT(pVarLeft) == VT_UNKNOWN || V_VT(pVarRight) == VT_UNKNOWN ||
4131 V_VT(pVarLeft) == (VARTYPE)15 || V_VT(pVarRight) == (VARTYPE)15 ||
4132 V_VT(pVarLeft) == VT_ERROR || V_VT(pVarRight) == VT_ERROR)
4133 return DISP_E_BADVARTYPE;
4134
4135 if (V_VT(pVarLeft) == VT_NULL || V_VT(pVarRight) == VT_NULL)
4136 {
4137 /* NULL XOR anything valid is NULL */
4138 V_VT(pVarOut) = VT_NULL;
4139 return S_OK;
4140 }
4141
4142 /* Copy our inputs so we don't disturb anything */
4143 V_VT(&varLeft) = V_VT(&varRight) = VT_EMPTY;
4144
4145 hRet = VariantCopy(&varLeft, pVarLeft);
4146 if (FAILED(hRet))
4147 goto VarXor_Exit;
4148
4149 hRet = VariantCopy(&varRight, pVarRight);
4150 if (FAILED(hRet))
4151 goto VarXor_Exit;
4152
4153 /* Try any strings first as numbers, then as VT_BOOL */
4154 if (V_VT(&varLeft) == VT_BSTR)
4155 {
4156 hRet = VarR8FromStr(V_BSTR(&varLeft), LOCALE_USER_DEFAULT, 0, &d);
4157 hRet = VariantChangeType(&varLeft, &varLeft, VARIANT_LOCALBOOL,
4158 FAILED(hRet) ? VT_BOOL : VT_I4);
4159 if (FAILED(hRet))
4160 goto VarXor_Exit;
4161 }
4162
4163 if (V_VT(&varRight) == VT_BSTR)
4164 {
4165 hRet = VarR8FromStr(V_BSTR(&varRight), LOCALE_USER_DEFAULT, 0, &d);
4166 hRet = VariantChangeType(&varRight, &varRight, VARIANT_LOCALBOOL,
4167 FAILED(hRet) ? VT_BOOL : VT_I4);
4168 if (FAILED(hRet))
4169 goto VarXor_Exit;
4170 }
4171
4172 /* Determine the result type */
4173 if (V_VT(&varLeft) == VT_I8 || V_VT(&varRight) == VT_I8)
4174 {
4175 if (V_VT(pVarLeft) == VT_INT || V_VT(pVarRight) == VT_INT)
4176 return DISP_E_TYPEMISMATCH;
4177 vt = VT_I8;
4178 }
4179 else
4180 {
4181 switch ((V_VT(&varLeft) << 16) | V_VT(&varRight))
4182 {
4183 case (VT_BOOL << 16) | VT_BOOL:
4184 vt = VT_BOOL;
4185 break;
4186 case (VT_UI1 << 16) | VT_UI1:
4187 vt = VT_UI1;
4188 break;
4189 case (VT_EMPTY << 16) | VT_EMPTY:
4190 case (VT_EMPTY << 16) | VT_UI1:
4191 case (VT_EMPTY << 16) | VT_I2:
4192 case (VT_EMPTY << 16) | VT_BOOL:
4193 case (VT_UI1 << 16) | VT_EMPTY:
4194 case (VT_UI1 << 16) | VT_I2:
4195 case (VT_UI1 << 16) | VT_BOOL:
4196 case (VT_I2 << 16) | VT_EMPTY:
4197 case (VT_I2 << 16) | VT_UI1:
4198 case (VT_I2 << 16) | VT_I2:
4199 case (VT_I2 << 16) | VT_BOOL:
4200 case (VT_BOOL << 16) | VT_EMPTY:
4201 case (VT_BOOL << 16) | VT_UI1:
4202 case (VT_BOOL << 16) | VT_I2:
4203 vt = VT_I2;
4204 break;
4205 default:
4206 vt = VT_I4;
4207 break;
4208 }
4209 }
4210
4211 /* VT_UI4 does not overflow */
4212 if (vt != VT_I8)
4213 {
4214 if (V_VT(&varLeft) == VT_UI4)
4215 V_VT(&varLeft) = VT_I4;
4216 if (V_VT(&varRight) == VT_UI4)
4217 V_VT(&varRight) = VT_I4;
4218 }
4219
4220 /* Convert our input copies to the result type */
4221 if (V_VT(&varLeft) != vt)
4222 hRet = VariantChangeType(&varLeft, &varLeft, 0, vt);
4223 if (FAILED(hRet))
4224 goto VarXor_Exit;
4225
4226 if (V_VT(&varRight) != vt)
4227 hRet = VariantChangeType(&varRight, &varRight, 0, vt);
4228 if (FAILED(hRet))
4229 goto VarXor_Exit;
4230
4231 V_VT(pVarOut) = vt;
4232
4233 /* Calculate the result */
4234 switch (vt)
4235 {
4236 case VT_I8:
4237 V_I8(pVarOut) = V_I8(&varLeft) ^ V_I8(&varRight);
4238 break;
4239 case VT_I4:
4240 V_I4(pVarOut) = V_I4(&varLeft) ^ V_I4(&varRight);
4241 break;
4242 case VT_BOOL:
4243 case VT_I2:
4244 V_I2(pVarOut) = V_I2(&varLeft) ^ V_I2(&varRight);
4245 break;
4246 case VT_UI1:
4247 V_UI1(pVarOut) = V_UI1(&varLeft) ^ V_UI1(&varRight);
4248 break;
4249 }
4250
4251 VarXor_Exit:
4252 VariantClear(&varLeft);
4253 VariantClear(&varRight);
4254 return hRet;
4255 }
4256
4257 /**********************************************************************
4258 * VarEqv [OLEAUT32.172]
4259 *
4260 * Determine if two variants contain the same value.
4261 *
4262 * PARAMS
4263 * pVarLeft [I] First variant to compare
4264 * pVarRight [I] Variant to compare to pVarLeft
4265 * pVarOut [O] Destination for comparison result
4266 *
4267 * RETURNS
4268 * Success: S_OK. pVarOut contains the result of the comparison (VARIANT_TRUE
4269 * if equivalent or non-zero otherwise.
4270 * Failure: An HRESULT error code indicating the error.
4271 *
4272 * NOTES
4273 * - This function simply calls VarXor() on pVarLeft and pVarRight and inverts
4274 * the result.
4275 */
4276 HRESULT WINAPI VarEqv(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
4277 {
4278 HRESULT hRet;
4279
4280 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
4281 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
4282 debugstr_VF(pVarRight), pVarOut);
4283
4284 hRet = VarXor(pVarLeft, pVarRight, pVarOut);
4285 if (SUCCEEDED(hRet))
4286 {
4287 if (V_VT(pVarOut) == VT_I8)
4288 V_I8(pVarOut) = ~V_I8(pVarOut);
4289 else
4290 V_UI4(pVarOut) = ~V_UI4(pVarOut);
4291 }
4292 return hRet;
4293 }
4294
4295 /**********************************************************************
4296 * VarNeg [OLEAUT32.173]
4297 *
4298 * Negate the value of a variant.
4299 *
4300 * PARAMS
4301 * pVarIn [I] Source variant
4302 * pVarOut [O] Destination for converted value
4303 *
4304 * RETURNS
4305 * Success: S_OK. pVarOut contains the converted value.
4306 * Failure: An HRESULT error code indicating the error.
4307 *
4308 * NOTES
4309 * - The type of the value stored in pVarOut depends on the type of pVarIn,
4310 * according to the following table:
4311 *| Input Type Output Type
4312 *| ---------- -----------
4313 *| VT_EMPTY VT_I2
4314 *| VT_UI1 VT_I2
4315 *| VT_BOOL VT_I2
4316 *| VT_BSTR VT_R8
4317 *| All Others Unchanged (unless promoted)
4318 * - Where the negated value of a variant does not fit in its base type, the type
4319 * is promoted according to the following table:
4320 *| Input Type Promoted To
4321 *| ---------- -----------
4322 *| VT_I2 VT_I4
4323 *| VT_I4 VT_R8
4324 *| VT_I8 VT_R8
4325 * - The native version of this function returns DISP_E_BADVARTYPE for valid
4326 * variant types that cannot be negated, and returns DISP_E_TYPEMISMATCH
4327 * for types which are not valid. Since this is in contravention of the
4328 * meaning of those error codes and unlikely to be relied on by applications,
4329 * this implementation returns errors consistent with the other high level
4330 * variant math functions.
4331 */
4332 HRESULT WINAPI VarNeg(LPVARIANT pVarIn, LPVARIANT pVarOut)
4333 {
4334 HRESULT hRet = S_OK;
4335
4336 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
4337 debugstr_VF(pVarIn), pVarOut);
4338
4339 V_VT(pVarOut) = V_VT(pVarIn);
4340
4341 switch (V_VT(pVarIn))
4342 {
4343 case VT_UI1:
4344 V_VT(pVarOut) = VT_I2;
4345 V_I2(pVarOut) = -V_UI1(pVarIn);
4346 break;
4347 case VT_BOOL:
4348 V_VT(pVarOut) = VT_I2;
4349 /* Fall through */
4350 case VT_I2:
4351 if (V_I2(pVarIn) == I2_MIN)
4352 {
4353 V_VT(pVarOut) = VT_I4;
4354 V_I4(pVarOut) = -(int)V_I2(pVarIn);
4355 }
4356 else
4357 V_I2(pVarOut) = -V_I2(pVarIn);
4358 break;
4359 case VT_I4:
4360 if (V_I4(pVarIn) == I4_MIN)
4361 {
4362 V_VT(pVarOut) = VT_R8;
4363 V_R8(pVarOut) = -(double)V_I4(pVarIn);
4364 }
4365 else
4366 V_I4(pVarOut) = -V_I4(pVarIn);
4367 break;
4368 case VT_I8:
4369 if (V_I8(pVarIn) == I8_MIN)
4370 {
4371 V_VT(pVarOut) = VT_R8;
4372 hRet = VarR8FromI8(V_I8(pVarIn), &V_R8(pVarOut));
4373 V_R8(pVarOut) *= -1.0;
4374 }
4375 else
4376 V_I8(pVarOut) = -V_I8(pVarIn);
4377 break;
4378 case VT_R4:
4379 V_R4(pVarOut) = -V_R4(pVarIn);
4380 break;
4381 case VT_DATE:
4382 case VT_R8:
4383 V_R8(pVarOut) = -V_R8(pVarIn);
4384 break;
4385 case VT_CY:
4386 hRet = VarCyNeg(V_CY(pVarIn), &V_CY(pVarOut));
4387 break;
4388 case VT_DECIMAL:
4389 hRet = VarDecNeg(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
4390 break;
4391 case VT_BSTR:
4392 V_VT(pVarOut) = VT_R8;
4393 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
4394 V_R8(pVarOut) = -V_R8(pVarOut);
4395 break;
4396 case VT_EMPTY:
4397 V_VT(pVarOut) = VT_I2;
4398 V_I2(pVarOut) = 0;
4399 break;
4400 case VT_NULL:
4401 /* No-Op */
4402 break;
4403 default:
4404 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
4405 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
4406 hRet = DISP_E_BADVARTYPE;
4407 else
4408 hRet = DISP_E_TYPEMISMATCH;
4409 }
4410 if (FAILED(hRet))
4411 V_VT(pVarOut) = VT_EMPTY;
4412
4413 return hRet;
4414 }
4415
4416 /**********************************************************************
4417 * VarNot [OLEAUT32.174]
4418 *
4419 * Perform a not operation on a variant.
4420 *
4421 * PARAMS
4422 * pVarIn [I] Source variant
4423 * pVarOut [O] Destination for converted value
4424 *
4425 * RETURNS
4426 * Success: S_OK. pVarOut contains the converted value.
4427 * Failure: An HRESULT error code indicating the error.
4428 *
4429 * NOTES
4430 * - Strictly speaking, this function performs a bitwise ones complement
4431 * on the variants value (after possibly converting to VT_I4, see below).
4432 * This only behaves like a boolean not operation if the value in
4433 * pVarIn is either VARIANT_TRUE or VARIANT_FALSE and the type is signed.
4434 * - To perform a genuine not operation, convert the variant to a VT_BOOL
4435 * before calling this function.
4436 * - This function does not process by-reference variants.
4437 * - The type of the value stored in pVarOut depends on the type of pVarIn,
4438 * according to the following table:
4439 *| Input Type Output Type
4440 *| ---------- -----------
4441 *| VT_EMPTY VT_I2
4442 *| VT_R4 VT_I4
4443 *| VT_R8 VT_I4
4444 *| VT_BSTR VT_I4
4445 *| VT_DECIMAL VT_I4
4446 *| VT_CY VT_I4
4447 *| (All others) Unchanged
4448 */
4449 HRESULT WINAPI VarNot(LPVARIANT pVarIn, LPVARIANT pVarOut)
4450 {
4451 VARIANT varIn;
4452 HRESULT hRet = S_OK;
4453
4454 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
4455 debugstr_VF(pVarIn), pVarOut);
4456
4457 V_VT(pVarOut) = V_VT(pVarIn);
4458
4459 switch (V_VT(pVarIn))
4460 {
4461 case VT_I1:
4462 V_I4(pVarOut) = ~V_I1(pVarIn);
4463 V_VT(pVarOut) = VT_I4;
4464 break;
4465 case VT_UI1: V_UI1(pVarOut) = ~V_UI1(pVarIn); break;
4466 case VT_BOOL:
4467 case VT_I2: V_I2(pVarOut) = ~V_I2(pVarIn); break;
4468 case VT_UI2:
4469 V_I4(pVarOut) = ~V_UI2(pVarIn);
4470 V_VT(pVarOut) = VT_I4;
4471 break;
4472 case VT_DECIMAL:
4473 hRet = VarI4FromDec(&V_DECIMAL(pVarIn), &V_I4(&varIn));
4474 if (FAILED(hRet))
4475 break;
4476 pVarIn = &varIn;
4477 /* Fall through ... */
4478 case VT_INT:
4479 V_VT(pVarOut) = VT_I4;
4480 /* Fall through ... */
4481 case VT_I4: V_I4(pVarOut) = ~V_I4(pVarIn); break;
4482 case VT_UINT:
4483 case VT_UI4:
4484 V_I4(pVarOut) = ~V_UI4(pVarIn);
4485 V_VT(pVarOut) = VT_I4;
4486 break;
4487 case VT_I8: V_I8(pVarOut) = ~V_I8(pVarIn); break;
4488 case VT_UI8:
4489 V_I4(pVarOut) = ~V_UI8(pVarIn);
4490 V_VT(pVarOut) = VT_I4;
4491 break;
4492 case VT_R4:
4493 hRet = VarI4FromR4(V_R4(pVarIn), &V_I4(pVarOut));
4494 V_I4(pVarOut) = ~V_I4(pVarOut);
4495 V_VT(pVarOut) = VT_I4;
4496 break;
4497 case VT_BSTR:
4498 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
4499 if (FAILED(hRet))
4500 break;
4501 pVarIn = &varIn;
4502 /* Fall through ... */
4503 case VT_DATE:
4504 case VT_R8:
4505 hRet = VarI4FromR8(V_R8(pVarIn), &V_I4(pVarOut));
4506 V_I4(pVarOut) = ~V_I4(pVarOut);
4507 V_VT(pVarOut) = VT_I4;
4508 break;
4509 case VT_CY:
4510 hRet = VarI4FromCy(V_CY(pVarIn), &V_I4(pVarOut));
4511 V_I4(pVarOut) = ~V_I4(pVarOut);
4512 V_VT(pVarOut) = VT_I4;
4513 break;
4514 case VT_EMPTY:
4515 V_I2(pVarOut) = ~0;
4516 V_VT(pVarOut) = VT_I2;
4517 break;
4518 case VT_NULL:
4519 /* No-Op */
4520 break;
4521 default:
4522 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
4523 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
4524 hRet = DISP_E_BADVARTYPE;
4525 else
4526 hRet = DISP_E_TYPEMISMATCH;
4527 }
4528 if (FAILED(hRet))
4529 V_VT(pVarOut) = VT_EMPTY;
4530
4531 return hRet;
4532 }
4533
4534 /**********************************************************************
4535 * VarRound [OLEAUT32.175]
4536 *
4537 * Perform a round operation on a variant.
4538 *
4539 * PARAMS
4540 * pVarIn [I] Source variant
4541 * deci [I] Number of decimals to round to
4542 * pVarOut [O] Destination for converted value
4543 *
4544 * RETURNS
4545 * Success: S_OK. pVarOut contains the converted value.
4546 * Failure: An HRESULT error code indicating the error.
4547 *
4548 * NOTES
4549 * - Floating point values are rounded to the desired number of decimals.
4550 * - Some integer types are just copied to the return variable.
4551 * - Some other integer types are not handled and fail.
4552 */
4553 HRESULT WINAPI VarRound(LPVARIANT pVarIn, int deci, LPVARIANT pVarOut)
4554 {
4555 VARIANT varIn;
4556 HRESULT hRet = S_OK;
4557 float factor;
4558
4559 TRACE("(%p->(%s%s),%d)\n", pVarIn, debugstr_VT(pVarIn), debugstr_VF(pVarIn), deci);
4560
4561 switch (V_VT(pVarIn))
4562 {
4563 /* cases that fail on windows */
4564 case VT_I1:
4565 case VT_I8:
4566 case VT_UI2:
4567 case VT_UI4:
4568 hRet = DISP_E_BADVARTYPE;
4569 break;
4570
4571 /* cases just copying in to out */
4572 case VT_UI1:
4573 V_VT(pVarOut) = V_VT(pVarIn);
4574 V_UI1(pVarOut) = V_UI1(pVarIn);
4575 break;
4576 case VT_I2:
4577 V_VT(pVarOut) = V_VT(pVarIn);
4578 V_I2(pVarOut) = V_I2(pVarIn);
4579 break;
4580 case VT_I4:
4581 V_VT(pVarOut) = V_VT(pVarIn);
4582 V_I4(pVarOut) = V_I4(pVarIn);
4583 break;
4584 case VT_NULL:
4585 V_VT(pVarOut) = V_VT(pVarIn);
4586 /* value unchanged */
4587 break;
4588
4589 /* cases that change type */
4590 case VT_EMPTY:
4591 V_VT(pVarOut) = VT_I2;
4592 V_I2(pVarOut) = 0;
4593 break;
4594 case VT_BOOL:
4595 V_VT(pVarOut) = VT_I2;
4596 V_I2(pVarOut) = V_BOOL(pVarIn);
4597 break;
4598 case VT_BSTR:
4599 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
4600 if (FAILED(hRet))
4601 break;
4602 V_VT(&varIn)=VT_R8;
4603 pVarIn = &varIn;
4604 /* Fall through ... */
4605
4606 /* cases we need to do math */
4607 case VT_R8:
4608 if (V_R8(pVarIn)>0) {
4609 V_R8(pVarOut)=floor(V_R8(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4610 } else {
4611 V_R8(pVarOut)=ceil(V_R8(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4612 }
4613 V_VT(pVarOut) = V_VT(pVarIn);
4614 break;
4615 case VT_R4:
4616 if (V_R4(pVarIn)>0) {
4617 V_R4(pVarOut)=floor(V_R4(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4618 } else {
4619 V_R4(pVarOut)=ceil(V_R4(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4620 }
4621 V_VT(pVarOut) = V_VT(pVarIn);
4622 break;
4623 case VT_DATE:
4624 if (V_DATE(pVarIn)>0) {
4625 V_DATE(pVarOut)=floor(V_DATE(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4626 } else {
4627 V_DATE(pVarOut)=ceil(V_DATE(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4628 }
4629 V_VT(pVarOut) = V_VT(pVarIn);
4630 break;
4631 case VT_CY:
4632 if (deci>3)
4633 factor=1;
4634 else
4635 factor=pow(10, 4-deci);
4636
4637 if (V_CY(pVarIn).int64>0) {
4638 V_CY(pVarOut).int64=floor(V_CY(pVarIn).int64/factor)*factor;
4639 } else {
4640 V_CY(pVarOut).int64=ceil(V_CY(pVarIn).int64/factor)*factor;
4641 }
4642 V_VT(pVarOut) = V_VT(pVarIn);
4643 break;
4644
4645 /* cases we don't know yet */
4646 default:
4647 FIXME("unimplemented part, V_VT(pVarIn) == 0x%X, deci == %d\n",
4648 V_VT(pVarIn) & VT_TYPEMASK, deci);
4649 hRet = DISP_E_BADVARTYPE;
4650 }
4651
4652 if (FAILED(hRet))
4653 V_VT(pVarOut) = VT_EMPTY;
4654
4655 TRACE("returning 0x%08lx (%s%s),%f\n", hRet, debugstr_VT(pVarOut),
4656 debugstr_VF(pVarOut), (V_VT(pVarOut) == VT_R4) ? V_R4(pVarOut) :
4657 (V_VT(pVarOut) == VT_R8) ? V_R8(pVarOut) : 0);
4658
4659 return hRet;
4660 }
4661
4662 /**********************************************************************
4663 * VarIdiv [OLEAUT32.153]
4664 *
4665 * Converts input variants to integers and divides them.
4666 *
4667 * PARAMS
4668 * left [I] Left hand variant
4669 * right [I] Right hand variant
4670 * result [O] Destination for quotient
4671 *
4672 * RETURNS
4673 * Success: S_OK. result contains the quotient.
4674 * Failure: An HRESULT error code indicating the error.
4675 *
4676 * NOTES
4677 * If either expression is null, null is returned, as per MSDN
4678 */
4679 HRESULT WINAPI VarIdiv(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4680 {
4681 VARIANT lv, rv;
4682 HRESULT hr;
4683
4684 VariantInit(&lv);
4685 VariantInit(&rv);
4686
4687 if ((V_VT(left) == VT_NULL) || (V_VT(right) == VT_NULL)) {
4688 hr = VariantChangeType(result, result, 0, VT_NULL);
4689 if (FAILED(hr)) {
4690 /* This should never happen */
4691 FIXME("Failed to convert return value to VT_NULL.\n");
4692 return hr;
4693 }
4694 return S_OK;
4695 }
4696
4697 hr = VariantChangeType(&lv, left, 0, VT_I4);
4698 if (FAILED(hr)) {
4699 return hr;
4700 }
4701 hr = VariantChangeType(&rv, right, 0, VT_I4);
4702 if (FAILED(hr)) {
4703 return hr;
4704 }
4705
4706 hr = VarDiv(&lv, &rv, result);
4707 return hr;
4708 }
4709
4710
4711 /**********************************************************************
4712 * VarMod [OLEAUT32.155]
4713 *
4714 * Perform the modulus operation of the right hand variant on the left
4715 *
4716 * PARAMS
4717 * left [I] Left hand variant
4718 * right [I] Right hand variant
4719 * result [O] Destination for converted value
4720 *
4721 * RETURNS
4722 * Success: S_OK. result contains the remainder.
4723 * Failure: An HRESULT error code indicating the error.
4724 *
4725 * NOTE:
4726 * If an error occurs the type of result will be modified but the value will not be.
4727 * Doesn't support arrays or any special flags yet.
4728 */
4729 HRESULT WINAPI VarMod(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4730 {
4731 BOOL lOk = TRUE;
4732 BOOL rOk = TRUE;
4733 HRESULT rc = E_FAIL;
4734 int resT = 0;
4735 VARIANT lv,rv;
4736
4737 VariantInit(&lv);
4738 VariantInit(&rv);
4739
4740 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
4741 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
4742
4743 /* check for invalid inputs */
4744 lOk = TRUE;
4745 switch (V_VT(left) & VT_TYPEMASK) {
4746 case VT_BOOL :
4747 case VT_I1 :
4748 case VT_I2 :
4749 case VT_I4 :
4750 case VT_I8 :
4751 case VT_INT :
4752 case VT_UI1 :
4753 case VT_UI2 :
4754 case VT_UI4 :
4755 case VT_UI8 :
4756 case VT_UINT :
4757 case VT_R4 :
4758 case VT_R8 :
4759 case VT_CY :
4760 case VT_EMPTY:
4761 case VT_DATE :
4762 case VT_BSTR :
4763 break;
4764 case VT_VARIANT:
4765 case VT_UNKNOWN:
4766 V_VT(result) = VT_EMPTY;
4767 return DISP_E_TYPEMISMATCH;
4768 case VT_DECIMAL:
4769 V_VT(result) = VT_EMPTY;
4770 return E_INVALIDARG;
4771 case VT_ERROR:
4772 return DISP_E_TYPEMISMATCH;
4773 case VT_RECORD:
4774 V_VT(result) = VT_EMPTY;
4775 return DISP_E_TYPEMISMATCH;
4776 case VT_NULL:
4777 break;
4778 default:
4779 V_VT(result) = VT_EMPTY;
4780 return DISP_E_BADVARTYPE;
4781 }
4782
4783
4784 rOk = TRUE;
4785 switch (V_VT(right) & VT_TYPEMASK) {
4786 case VT_BOOL :
4787 case VT_I1 :
4788 case VT_I2 :
4789 case VT_I4 :
4790 case VT_I8 :
4791 if((V_VT(left) == VT_INT) && (V_VT(right) == VT_I8))
4792 {
4793 V_VT(result) = VT_EMPTY;
4794 return DISP_E_TYPEMISMATCH;
4795 }
4796 case VT_INT :
4797 if((V_VT(right) == VT_INT) && (V_VT(left) == VT_I8))
4798 {
4799 V_VT(result) = VT_EMPTY;
4800 return DISP_E_TYPEMISMATCH;
4801 }
4802 case VT_UI1 :
4803 case VT_UI2 :
4804 case VT_UI4 :
4805 case VT_UI8 :
4806 case VT_UINT :
4807 case VT_R4 :
4808 case VT_R8 :
4809 case VT_CY :
4810 if(V_VT(left) == VT_EMPTY)
4811 {
4812 V_VT(result) = VT_I4;
4813 return S_OK;
4814 }
4815 case VT_EMPTY:
4816 case VT_DATE :
4817 case VT_BSTR:
4818 if(V_VT(left) == VT_NULL)
4819 {
4820 V_VT(result) = VT_NULL;
4821 return S_OK;
4822 }
4823 break;
4824
4825 case VT_VOID:
4826 V_VT(result) = VT_EMPTY;
4827 return DISP_E_BADVARTYPE;
4828 case VT_NULL:
4829 if(V_VT(left) == VT_VOID)
4830 {
4831 V_VT(result) = VT_EMPTY;
4832 return DISP_E_BADVARTYPE;
4833 } else if((V_VT(left) == VT_NULL) || (V_VT(left) == VT_EMPTY) || (V_VT(left) == VT_ERROR) ||
4834 lOk)
4835 {
4836 V_VT(result) = VT_NULL;
4837 return S_OK;
4838 } else
4839 {
4840 V_VT(result) = VT_NULL;
4841 return DISP_E_BADVARTYPE;
4842 }
4843 case VT_VARIANT:
4844 case VT_UNKNOWN:
4845 V_VT(result) = VT_EMPTY;
4846 return DISP_E_TYPEMISMATCH;
4847 case VT_DECIMAL:
4848 if(V_VT(left) == VT_ERROR)
4849 {
4850 V_VT(result) = VT_EMPTY;
4851 return DISP_E_TYPEMISMATCH;
4852 } else
4853 {
4854 V_VT(result) = VT_EMPTY;
4855 return E_INVALIDARG;
4856 }
4857 case VT_ERROR:
4858 return DISP_E_TYPEMISMATCH;
4859 case VT_RECORD:
4860 if((V_VT(left) == 15) || ((V_VT(left) >= 24) && (V_VT(left) <= 35)) || !lOk)
4861 {
4862 V_VT(result) = VT_EMPTY;
4863 return DISP_E_BADVARTYPE;
4864 } else
4865 {
4866 V_VT(result) = VT_EMPTY;
4867 return DISP_E_TYPEMISMATCH;
4868 }
4869 default:
4870 V_VT(result) = VT_EMPTY;
4871 return DISP_E_BADVARTYPE;
4872 }
4873
4874 /* determine the result type */
4875 if((V_VT(left) == VT_I8) || (V_VT(right) == VT_I8)) resT = VT_I8;
4876 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4877 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_UI1)) resT = VT_UI1;
4878 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_I2)) resT = VT_I2;
4879 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4880 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_UI1)) resT = VT_I2;
4881 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_I2)) resT = VT_I2;
4882 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4883 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_UI1)) resT = VT_I2;
4884 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_I2)) resT = VT_I2;
4885 else resT = VT_I4; /* most outputs are I4 */
4886
4887 /* convert to I8 for the modulo */
4888 rc = VariantChangeType(&lv, left, 0, VT_I8);
4889 if(FAILED(rc))
4890 {
4891 FIXME("Could not convert left type %d to %d? rc == 0x%lX\n", V_VT(left), VT_I8, rc);
4892 return rc;
4893 }
4894
4895 rc = VariantChangeType(&rv, right, 0, VT_I8);
4896 if(FAILED(rc))
4897 {
4898 FIXME("Could not convert right type %d to %d? rc == 0x%lX\n", V_VT(right), VT_I8, rc);
4899 return rc;
4900 }
4901
4902 /* if right is zero set VT_EMPTY and return divide by zero */
4903 if(V_I8(&rv) == 0)
4904 {
4905 V_VT(result) = VT_EMPTY;
4906 return DISP_E_DIVBYZERO;
4907 }
4908
4909 /* perform the modulo operation */
4910 V_VT(result) = VT_I8;
4911 V_I8(result) = V_I8(&lv) % V_I8(&rv);
4912
4913 TRACE("V_I8(left) == %ld, V_I8(right) == %ld, V_I8(result) == %ld\n", (long)V_I8(&lv), (long)V_I8(&rv), (long)V_I8(result));
4914
4915 /* convert left and right to the destination type */
4916 rc = VariantChangeType(result, result, 0, resT);
4917 if(FAILED(rc))
4918 {
4919 FIXME("Could not convert 0x%x to %d?\n", V_VT(result), resT);
4920 return rc;
4921 }
4922
4923 return S_OK;
4924 }
4925
4926 /**********************************************************************
4927 * VarPow [OLEAUT32.158]
4928 *
4929 * Computes the power of one variant to another variant.
4930 *
4931 * PARAMS
4932 * left [I] First variant
4933 * right [I] Second variant
4934 * result [O] Result variant
4935 *
4936 * RETURNS
4937 * Success: S_OK.
4938 * Failure: An HRESULT error code indicating the error.
4939 */
4940 HRESULT WINAPI VarPow(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4941 {
4942 HRESULT hr;
4943 VARIANT dl,dr;
4944
4945 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left), debugstr_VF(left),
4946 right, debugstr_VT(right), debugstr_VF(right), result);
4947
4948 hr = VariantChangeType(&dl,left,0,VT_R8);
4949 if (!SUCCEEDED(hr)) {
4950 ERR("Could not change passed left argument to VT_R8, handle it differently.\n");
4951 return E_FAIL;
4952 }
4953 hr = VariantChangeType(&dr,right,0,VT_R8);
4954 if (!SUCCEEDED(hr)) {
4955 ERR("Could not change passed right argument to VT_R8, handle it differently.\n");
4956 return E_FAIL;
4957 }
4958 V_VT(result) = VT_R8;
4959 V_R8(result) = pow(V_R8(&dl),V_R8(&dr));
4960 return S_OK;
4961 }
useful hacks and other patches not (yet) suitable for mainline