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- VarAdd, VarMul: I4 overflows to R8 and not I8 even if the result
[wine.git] / dlls / oleaut32 / variant.c
blob775ad7b674ee52c031427edc9ba496edad5714f8
1 /*
2 * VARIANT
3 *
4 * Copyright 1998 Jean-Claude Cote
5 * Copyright 2003 Jon Griffiths
6 * Copyright 2005 Daniel Remenak
7 *
8 * The alorithm for conversion from Julian days to day/month/year is based on
9 * that devised by Henry Fliegel, as implemented in PostgreSQL, which is
10 * Copyright 1994-7 Regents of the University of California
11 *
12 * This library is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; either
15 * version 2.1 of the License, or (at your option) any later version.
16 *
17 * This library is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with this library; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 */
26
27 #include "config.h"
28
29 #include <string.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32
33 #define COBJMACROS
34 #define NONAMELESSUNION
35 #define NONAMELESSSTRUCT
36
37 #include "windef.h"
38 #include "winbase.h"
39 #include "wine/unicode.h"
40 #include "winerror.h"
41 #include "variant.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(variant);
45
46 const char* wine_vtypes[VT_CLSID] =
47 {
48 "VT_EMPTY","VT_NULL","VT_I2","VT_I4","VT_R4","VT_R8","VT_CY","VT_DATE",
49 "VT_BSTR","VT_DISPATCH","VT_ERROR","VT_BOOL","VT_VARIANT","VT_UNKNOWN",
50 "VT_DECIMAL","15","VT_I1","VT_UI1","VT_UI2","VT_UI4","VT_I8","VT_UI8",
51 "VT_INT","VT_UINT","VT_VOID","VT_HRESULT","VT_PTR","VT_SAFEARRAY",
52 "VT_CARRAY","VT_USERDEFINED","VT_LPSTR","VT_LPWSTR""32","33","34","35",
53 "VT_RECORD","VT_INT_PTR","VT_UINT_PTR","39","40","41","42","43","44","45",
54 "46","47","48","49","50","51","52","53","54","55","56","57","58","59","60",
55 "61","62","63","VT_FILETIME","VT_BLOB","VT_STREAM","VT_STORAGE",
56 "VT_STREAMED_OBJECT","VT_STORED_OBJECT","VT_BLOB_OBJECT","VT_CF","VT_CLSID"
57 };
58
59 const char* wine_vflags[16] =
60 {
61 "",
62 "|VT_VECTOR",
63 "|VT_ARRAY",
64 "|VT_VECTOR|VT_ARRAY",
65 "|VT_BYREF",
66 "|VT_VECTOR|VT_ARRAY",
67 "|VT_ARRAY|VT_BYREF",
68 "|VT_VECTOR|VT_ARRAY|VT_BYREF",
69 "|VT_HARDTYPE",
70 "|VT_VECTOR|VT_HARDTYPE",
71 "|VT_ARRAY|VT_HARDTYPE",
72 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
73 "|VT_BYREF|VT_HARDTYPE",
74 "|VT_VECTOR|VT_ARRAY|VT_HARDTYPE",
75 "|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
76 "|VT_VECTOR|VT_ARRAY|VT_BYREF|VT_HARDTYPE",
77 };
78
79 /* Convert a variant from one type to another */
80 static inline HRESULT VARIANT_Coerce(VARIANTARG* pd, LCID lcid, USHORT wFlags,
81 VARIANTARG* ps, VARTYPE vt)
82 {
83 HRESULT res = DISP_E_TYPEMISMATCH;
84 VARTYPE vtFrom = V_TYPE(ps);
85 DWORD dwFlags = 0;
86
87 TRACE("(%p->(%s%s),0x%08lx,0x%04x,%p->(%s%s),%s%s)\n", pd, debugstr_VT(pd),
88 debugstr_VF(pd), lcid, wFlags, ps, debugstr_VT(ps), debugstr_VF(ps),
89 debugstr_vt(vt), debugstr_vf(vt));
90
91 if (vt == VT_BSTR || vtFrom == VT_BSTR)
92 {
93 /* All flags passed to low level function are only used for
94 * changing to or from strings. Map these here.
95 */
96 if (wFlags & VARIANT_LOCALBOOL)
97 dwFlags |= VAR_LOCALBOOL;
98 if (wFlags & VARIANT_CALENDAR_HIJRI)
99 dwFlags |= VAR_CALENDAR_HIJRI;
100 if (wFlags & VARIANT_CALENDAR_THAI)
101 dwFlags |= VAR_CALENDAR_THAI;
102 if (wFlags & VARIANT_CALENDAR_GREGORIAN)
103 dwFlags |= VAR_CALENDAR_GREGORIAN;
104 if (wFlags & VARIANT_NOUSEROVERRIDE)
105 dwFlags |= LOCALE_NOUSEROVERRIDE;
106 if (wFlags & VARIANT_USE_NLS)
107 dwFlags |= LOCALE_USE_NLS;
108 }
109
110 /* Map int/uint to i4/ui4 */
111 if (vt == VT_INT)
112 vt = VT_I4;
113 else if (vt == VT_UINT)
114 vt = VT_UI4;
115
116 if (vtFrom == VT_INT)
117 vtFrom = VT_I4;
118 else if (vtFrom == VT_UINT)
119 vtFrom = VT_UI4;
120
121 if (vt == vtFrom)
122 return VariantCopy(pd, ps);
123
124 if (wFlags & VARIANT_NOVALUEPROP && vtFrom == VT_DISPATCH && vt != VT_UNKNOWN)
125 {
126 /* VARIANT_NOVALUEPROP prevents IDispatch objects from being coerced by
127 * accessing the default object property.
128 */
129 return DISP_E_TYPEMISMATCH;
130 }
131
132 switch (vt)
133 {
134 case VT_EMPTY:
135 if (vtFrom == VT_NULL)
136 return DISP_E_TYPEMISMATCH;
137 /* ... Fall through */
138 case VT_NULL:
139 if (vtFrom <= VT_UINT && vtFrom != (VARTYPE)15 && vtFrom != VT_ERROR)
140 {
141 res = VariantClear( pd );
142 if (vt == VT_NULL && SUCCEEDED(res))
143 V_VT(pd) = VT_NULL;
144 }
145 return res;
146
147 case VT_I1:
148 switch (vtFrom)
149 {
150 case VT_EMPTY: V_I1(pd) = 0; return S_OK;
151 case VT_I2: return VarI1FromI2(V_I2(ps), &V_I1(pd));
152 case VT_I4: return VarI1FromI4(V_I4(ps), &V_I1(pd));
153 case VT_UI1: V_I1(pd) = V_UI1(ps); return S_OK;
154 case VT_UI2: return VarI1FromUI2(V_UI2(ps), &V_I1(pd));
155 case VT_UI4: return VarI1FromUI4(V_UI4(ps), &V_I1(pd));
156 case VT_I8: return VarI1FromI8(V_I8(ps), &V_I1(pd));
157 case VT_UI8: return VarI1FromUI8(V_UI8(ps), &V_I1(pd));
158 case VT_R4: return VarI1FromR4(V_R4(ps), &V_I1(pd));
159 case VT_R8: return VarI1FromR8(V_R8(ps), &V_I1(pd));
160 case VT_DATE: return VarI1FromDate(V_DATE(ps), &V_I1(pd));
161 case VT_BOOL: return VarI1FromBool(V_BOOL(ps), &V_I1(pd));
162 case VT_CY: return VarI1FromCy(V_CY(ps), &V_I1(pd));
163 case VT_DECIMAL: return VarI1FromDec(&V_DECIMAL(ps), &V_I1(pd) );
164 case VT_DISPATCH: return VarI1FromDisp(V_DISPATCH(ps), lcid, &V_I1(pd) );
165 case VT_BSTR: return VarI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_I1(pd) );
166 }
167 break;
168
169 case VT_I2:
170 switch (vtFrom)
171 {
172 case VT_EMPTY: V_I2(pd) = 0; return S_OK;
173 case VT_I1: return VarI2FromI1(V_I1(ps), &V_I2(pd));
174 case VT_I4: return VarI2FromI4(V_I4(ps), &V_I2(pd));
175 case VT_UI1: return VarI2FromUI1(V_UI1(ps), &V_I2(pd));
176 case VT_UI2: V_I2(pd) = V_UI2(ps); return S_OK;
177 case VT_UI4: return VarI2FromUI4(V_UI4(ps), &V_I2(pd));
178 case VT_I8: return VarI2FromI8(V_I8(ps), &V_I2(pd));
179 case VT_UI8: return VarI2FromUI8(V_UI8(ps), &V_I2(pd));
180 case VT_R4: return VarI2FromR4(V_R4(ps), &V_I2(pd));
181 case VT_R8: return VarI2FromR8(V_R8(ps), &V_I2(pd));
182 case VT_DATE: return VarI2FromDate(V_DATE(ps), &V_I2(pd));
183 case VT_BOOL: return VarI2FromBool(V_BOOL(ps), &V_I2(pd));
184 case VT_CY: return VarI2FromCy(V_CY(ps), &V_I2(pd));
185 case VT_DECIMAL: return VarI2FromDec(&V_DECIMAL(ps), &V_I2(pd));
186 case VT_DISPATCH: return VarI2FromDisp(V_DISPATCH(ps), lcid, &V_I2(pd));
187 case VT_BSTR: return VarI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_I2(pd));
188 }
189 break;
190
191 case VT_I4:
192 switch (vtFrom)
193 {
194 case VT_EMPTY: V_I4(pd) = 0; return S_OK;
195 case VT_I1: return VarI4FromI1(V_I1(ps), &V_I4(pd));
196 case VT_I2: return VarI4FromI2(V_I2(ps), &V_I4(pd));
197 case VT_UI1: return VarI4FromUI1(V_UI1(ps), &V_I4(pd));
198 case VT_UI2: return VarI4FromUI2(V_UI2(ps), &V_I4(pd));
199 case VT_UI4: V_I4(pd) = V_UI4(ps); return S_OK;
200 case VT_I8: return VarI4FromI8(V_I8(ps), &V_I4(pd));
201 case VT_UI8: return VarI4FromUI8(V_UI8(ps), &V_I4(pd));
202 case VT_R4: return VarI4FromR4(V_R4(ps), &V_I4(pd));
203 case VT_R8: return VarI4FromR8(V_R8(ps), &V_I4(pd));
204 case VT_DATE: return VarI4FromDate(V_DATE(ps), &V_I4(pd));
205 case VT_BOOL: return VarI4FromBool(V_BOOL(ps), &V_I4(pd));
206 case VT_CY: return VarI4FromCy(V_CY(ps), &V_I4(pd));
207 case VT_DECIMAL: return VarI4FromDec(&V_DECIMAL(ps), &V_I4(pd));
208 case VT_DISPATCH: return VarI4FromDisp(V_DISPATCH(ps), lcid, &V_I4(pd));
209 case VT_BSTR: return VarI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_I4(pd));
210 }
211 break;
212
213 case VT_UI1:
214 switch (vtFrom)
215 {
216 case VT_EMPTY: V_UI1(pd) = 0; return S_OK;
217 case VT_I1: V_UI1(pd) = V_I1(ps); return S_OK;
218 case VT_I2: return VarUI1FromI2(V_I2(ps), &V_UI1(pd));
219 case VT_I4: return VarUI1FromI4(V_I4(ps), &V_UI1(pd));
220 case VT_UI2: return VarUI1FromUI2(V_UI2(ps), &V_UI1(pd));
221 case VT_UI4: return VarUI1FromUI4(V_UI4(ps), &V_UI1(pd));
222 case VT_I8: return VarUI1FromI8(V_I8(ps), &V_UI1(pd));
223 case VT_UI8: return VarUI1FromUI8(V_UI8(ps), &V_UI1(pd));
224 case VT_R4: return VarUI1FromR4(V_R4(ps), &V_UI1(pd));
225 case VT_R8: return VarUI1FromR8(V_R8(ps), &V_UI1(pd));
226 case VT_DATE: return VarUI1FromDate(V_DATE(ps), &V_UI1(pd));
227 case VT_BOOL: return VarUI1FromBool(V_BOOL(ps), &V_UI1(pd));
228 case VT_CY: return VarUI1FromCy(V_CY(ps), &V_UI1(pd));
229 case VT_DECIMAL: return VarUI1FromDec(&V_DECIMAL(ps), &V_UI1(pd));
230 case VT_DISPATCH: return VarUI1FromDisp(V_DISPATCH(ps), lcid, &V_UI1(pd));
231 case VT_BSTR: return VarUI1FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI1(pd));
232 }
233 break;
234
235 case VT_UI2:
236 switch (vtFrom)
237 {
238 case VT_EMPTY: V_UI2(pd) = 0; return S_OK;
239 case VT_I1: return VarUI2FromI1(V_I1(ps), &V_UI2(pd));
240 case VT_I2: V_UI2(pd) = V_I2(ps); return S_OK;
241 case VT_I4: return VarUI2FromI4(V_I4(ps), &V_UI2(pd));
242 case VT_UI1: return VarUI2FromUI1(V_UI1(ps), &V_UI2(pd));
243 case VT_UI4: return VarUI2FromUI4(V_UI4(ps), &V_UI2(pd));
244 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
245 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
246 case VT_R4: return VarUI2FromR4(V_R4(ps), &V_UI2(pd));
247 case VT_R8: return VarUI2FromR8(V_R8(ps), &V_UI2(pd));
248 case VT_DATE: return VarUI2FromDate(V_DATE(ps), &V_UI2(pd));
249 case VT_BOOL: return VarUI2FromBool(V_BOOL(ps), &V_UI2(pd));
250 case VT_CY: return VarUI2FromCy(V_CY(ps), &V_UI2(pd));
251 case VT_DECIMAL: return VarUI2FromDec(&V_DECIMAL(ps), &V_UI2(pd));
252 case VT_DISPATCH: return VarUI2FromDisp(V_DISPATCH(ps), lcid, &V_UI2(pd));
253 case VT_BSTR: return VarUI2FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI2(pd));
254 }
255 break;
256
257 case VT_UI4:
258 switch (vtFrom)
259 {
260 case VT_EMPTY: V_UI4(pd) = 0; return S_OK;
261 case VT_I1: return VarUI4FromI1(V_I1(ps), &V_UI4(pd));
262 case VT_I2: return VarUI4FromI2(V_I2(ps), &V_UI4(pd));
263 case VT_I4: V_UI4(pd) = V_I4(ps); return S_OK;
264 case VT_UI1: return VarUI4FromUI1(V_UI1(ps), &V_UI4(pd));
265 case VT_UI2: return VarUI4FromUI2(V_UI2(ps), &V_UI4(pd));
266 case VT_I8: return VarUI4FromI8(V_I8(ps), &V_UI4(pd));
267 case VT_UI8: return VarUI4FromUI8(V_UI8(ps), &V_UI4(pd));
268 case VT_R4: return VarUI4FromR4(V_R4(ps), &V_UI4(pd));
269 case VT_R8: return VarUI4FromR8(V_R8(ps), &V_UI4(pd));
270 case VT_DATE: return VarUI4FromDate(V_DATE(ps), &V_UI4(pd));
271 case VT_BOOL: return VarUI4FromBool(V_BOOL(ps), &V_UI4(pd));
272 case VT_CY: return VarUI4FromCy(V_CY(ps), &V_UI4(pd));
273 case VT_DECIMAL: return VarUI4FromDec(&V_DECIMAL(ps), &V_UI4(pd));
274 case VT_DISPATCH: return VarUI4FromDisp(V_DISPATCH(ps), lcid, &V_UI4(pd));
275 case VT_BSTR: return VarUI4FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI4(pd));
276 }
277 break;
278
279 case VT_UI8:
280 switch (vtFrom)
281 {
282 case VT_EMPTY: V_UI8(pd) = 0; return S_OK;
283 case VT_I4: if (V_I4(ps) < 0) return DISP_E_OVERFLOW; V_UI8(pd) = V_I4(ps); return S_OK;
284 case VT_I1: return VarUI8FromI1(V_I1(ps), &V_UI8(pd));
285 case VT_I2: return VarUI8FromI2(V_I2(ps), &V_UI8(pd));
286 case VT_UI1: return VarUI8FromUI1(V_UI1(ps), &V_UI8(pd));
287 case VT_UI2: return VarUI8FromUI2(V_UI2(ps), &V_UI8(pd));
288 case VT_UI4: return VarUI8FromUI4(V_UI4(ps), &V_UI8(pd));
289 case VT_I8: V_UI8(pd) = V_I8(ps); return S_OK;
290 case VT_R4: return VarUI8FromR4(V_R4(ps), &V_UI8(pd));
291 case VT_R8: return VarUI8FromR8(V_R8(ps), &V_UI8(pd));
292 case VT_DATE: return VarUI8FromDate(V_DATE(ps), &V_UI8(pd));
293 case VT_BOOL: return VarUI8FromBool(V_BOOL(ps), &V_UI8(pd));
294 case VT_CY: return VarUI8FromCy(V_CY(ps), &V_UI8(pd));
295 case VT_DECIMAL: return VarUI8FromDec(&V_DECIMAL(ps), &V_UI8(pd));
296 case VT_DISPATCH: return VarUI8FromDisp(V_DISPATCH(ps), lcid, &V_UI8(pd));
297 case VT_BSTR: return VarUI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_UI8(pd));
298 }
299 break;
300
301 case VT_I8:
302 switch (vtFrom)
303 {
304 case VT_EMPTY: V_I8(pd) = 0; return S_OK;
305 case VT_I4: V_I8(pd) = V_I4(ps); return S_OK;
306 case VT_I1: return VarI8FromI1(V_I1(ps), &V_I8(pd));
307 case VT_I2: return VarI8FromI2(V_I2(ps), &V_I8(pd));
308 case VT_UI1: return VarI8FromUI1(V_UI1(ps), &V_I8(pd));
309 case VT_UI2: return VarI8FromUI2(V_UI2(ps), &V_I8(pd));
310 case VT_UI4: return VarI8FromUI4(V_UI4(ps), &V_I8(pd));
311 case VT_UI8: V_I8(pd) = V_UI8(ps); return S_OK;
312 case VT_R4: return VarI8FromR4(V_R4(ps), &V_I8(pd));
313 case VT_R8: return VarI8FromR8(V_R8(ps), &V_I8(pd));
314 case VT_DATE: return VarI8FromDate(V_DATE(ps), &V_I8(pd));
315 case VT_BOOL: return VarI8FromBool(V_BOOL(ps), &V_I8(pd));
316 case VT_CY: return VarI8FromCy(V_CY(ps), &V_I8(pd));
317 case VT_DECIMAL: return VarI8FromDec(&V_DECIMAL(ps), &V_I8(pd));
318 case VT_DISPATCH: return VarI8FromDisp(V_DISPATCH(ps), lcid, &V_I8(pd));
319 case VT_BSTR: return VarI8FromStr(V_BSTR(ps), lcid, dwFlags, &V_I8(pd));
320 }
321 break;
322
323 case VT_R4:
324 switch (vtFrom)
325 {
326 case VT_EMPTY: V_R4(pd) = 0.0f; return S_OK;
327 case VT_I1: return VarR4FromI1(V_I1(ps), &V_R4(pd));
328 case VT_I2: return VarR4FromI2(V_I2(ps), &V_R4(pd));
329 case VT_I4: return VarR4FromI4(V_I4(ps), &V_R4(pd));
330 case VT_UI1: return VarR4FromUI1(V_UI1(ps), &V_R4(pd));
331 case VT_UI2: return VarR4FromUI2(V_UI2(ps), &V_R4(pd));
332 case VT_UI4: return VarR4FromUI4(V_UI4(ps), &V_R4(pd));
333 case VT_I8: return VarR4FromI8(V_I8(ps), &V_R4(pd));
334 case VT_UI8: return VarR4FromUI8(V_UI8(ps), &V_R4(pd));
335 case VT_R8: return VarR4FromR8(V_R8(ps), &V_R4(pd));
336 case VT_DATE: return VarR4FromDate(V_DATE(ps), &V_R4(pd));
337 case VT_BOOL: return VarR4FromBool(V_BOOL(ps), &V_R4(pd));
338 case VT_CY: return VarR4FromCy(V_CY(ps), &V_R4(pd));
339 case VT_DECIMAL: return VarR4FromDec(&V_DECIMAL(ps), &V_R4(pd));
340 case VT_DISPATCH: return VarR4FromDisp(V_DISPATCH(ps), lcid, &V_R4(pd));
341 case VT_BSTR: return VarR4FromStr(V_BSTR(ps), lcid, dwFlags, &V_R4(pd));
342 }
343 break;
344
345 case VT_R8:
346 switch (vtFrom)
347 {
348 case VT_EMPTY: V_R8(pd) = 0.0; return S_OK;
349 case VT_I1: return VarR8FromI1(V_I1(ps), &V_R8(pd));
350 case VT_I2: return VarR8FromI2(V_I2(ps), &V_R8(pd));
351 case VT_I4: return VarR8FromI4(V_I4(ps), &V_R8(pd));
352 case VT_UI1: return VarR8FromUI1(V_UI1(ps), &V_R8(pd));
353 case VT_UI2: return VarR8FromUI2(V_UI2(ps), &V_R8(pd));
354 case VT_UI4: return VarR8FromUI4(V_UI4(ps), &V_R8(pd));
355 case VT_I8: return VarR8FromI8(V_I8(ps), &V_R8(pd));
356 case VT_UI8: return VarR8FromUI8(V_UI8(ps), &V_R8(pd));
357 case VT_R4: return VarR8FromR4(V_R4(ps), &V_R8(pd));
358 case VT_DATE: return VarR8FromDate(V_DATE(ps), &V_R8(pd));
359 case VT_BOOL: return VarR8FromBool(V_BOOL(ps), &V_R8(pd));
360 case VT_CY: return VarR8FromCy(V_CY(ps), &V_R8(pd));
361 case VT_DECIMAL: return VarR8FromDec(&V_DECIMAL(ps), &V_R8(pd));
362 case VT_DISPATCH: return VarR8FromDisp(V_DISPATCH(ps), lcid, &V_R8(pd));
363 case VT_BSTR: return VarR8FromStr(V_BSTR(ps), lcid, dwFlags, &V_R8(pd));
364 }
365 break;
366
367 case VT_DATE:
368 switch (vtFrom)
369 {
370 case VT_EMPTY: V_DATE(pd) = 0.0; return S_OK;
371 case VT_I1: return VarDateFromI1(V_I1(ps), &V_DATE(pd));
372 case VT_I2: return VarDateFromI2(V_I2(ps), &V_DATE(pd));
373 case VT_I4: return VarDateFromI4(V_I4(ps), &V_DATE(pd));
374 case VT_UI1: return VarDateFromUI1(V_UI1(ps), &V_DATE(pd));
375 case VT_UI2: return VarDateFromUI2(V_UI2(ps), &V_DATE(pd));
376 case VT_UI4: return VarDateFromUI4(V_UI4(ps), &V_DATE(pd));
377 case VT_I8: return VarDateFromI8(V_I8(ps), &V_DATE(pd));
378 case VT_UI8: return VarDateFromUI8(V_UI8(ps), &V_DATE(pd));
379 case VT_R4: return VarDateFromR4(V_R4(ps), &V_DATE(pd));
380 case VT_R8: return VarDateFromR8(V_R8(ps), &V_DATE(pd));
381 case VT_BOOL: return VarDateFromBool(V_BOOL(ps), &V_DATE(pd));
382 case VT_CY: return VarDateFromCy(V_CY(ps), &V_DATE(pd));
383 case VT_DECIMAL: return VarDateFromDec(&V_DECIMAL(ps), &V_DATE(pd));
384 case VT_DISPATCH: return VarDateFromDisp(V_DISPATCH(ps), lcid, &V_DATE(pd));
385 case VT_BSTR: return VarDateFromStr(V_BSTR(ps), lcid, dwFlags, &V_DATE(pd));
386 }
387 break;
388
389 case VT_BOOL:
390 switch (vtFrom)
391 {
392 case VT_EMPTY: V_BOOL(pd) = 0; return S_OK;
393 case VT_I1: return VarBoolFromI1(V_I1(ps), &V_BOOL(pd));
394 case VT_I2: return VarBoolFromI2(V_I2(ps), &V_BOOL(pd));
395 case VT_I4: return VarBoolFromI4(V_I4(ps), &V_BOOL(pd));
396 case VT_UI1: return VarBoolFromUI1(V_UI1(ps), &V_BOOL(pd));
397 case VT_UI2: return VarBoolFromUI2(V_UI2(ps), &V_BOOL(pd));
398 case VT_UI4: return VarBoolFromUI4(V_UI4(ps), &V_BOOL(pd));
399 case VT_I8: return VarBoolFromI8(V_I8(ps), &V_BOOL(pd));
400 case VT_UI8: return VarBoolFromUI8(V_UI8(ps), &V_BOOL(pd));
401 case VT_R4: return VarBoolFromR4(V_R4(ps), &V_BOOL(pd));
402 case VT_R8: return VarBoolFromR8(V_R8(ps), &V_BOOL(pd));
403 case VT_DATE: return VarBoolFromDate(V_DATE(ps), &V_BOOL(pd));
404 case VT_CY: return VarBoolFromCy(V_CY(ps), &V_BOOL(pd));
405 case VT_DECIMAL: return VarBoolFromDec(&V_DECIMAL(ps), &V_BOOL(pd));
406 case VT_DISPATCH: return VarBoolFromDisp(V_DISPATCH(ps), lcid, &V_BOOL(pd));
407 case VT_BSTR: return VarBoolFromStr(V_BSTR(ps), lcid, dwFlags, &V_BOOL(pd));
408 }
409 break;
410
411 case VT_BSTR:
412 switch (vtFrom)
413 {
414 case VT_EMPTY:
415 V_BSTR(pd) = SysAllocStringLen(NULL, 0);
416 return V_BSTR(pd) ? S_OK : E_OUTOFMEMORY;
417 case VT_BOOL:
418 if (wFlags & (VARIANT_ALPHABOOL|VARIANT_LOCALBOOL))
419 return VarBstrFromBool(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
420 return VarBstrFromI2(V_BOOL(ps), lcid, dwFlags, &V_BSTR(pd));
421 case VT_I1: return VarBstrFromI1(V_I1(ps), lcid, dwFlags, &V_BSTR(pd));
422 case VT_I2: return VarBstrFromI2(V_I2(ps), lcid, dwFlags, &V_BSTR(pd));
423 case VT_I4: return VarBstrFromI4(V_I4(ps), lcid, dwFlags, &V_BSTR(pd));
424 case VT_UI1: return VarBstrFromUI1(V_UI1(ps), lcid, dwFlags, &V_BSTR(pd));
425 case VT_UI2: return VarBstrFromUI2(V_UI2(ps), lcid, dwFlags, &V_BSTR(pd));
426 case VT_UI4: return VarBstrFromUI4(V_UI4(ps), lcid, dwFlags, &V_BSTR(pd));
427 case VT_I8: return VarBstrFromI8(V_I8(ps), lcid, dwFlags, &V_BSTR(pd));
428 case VT_UI8: return VarBstrFromUI8(V_UI8(ps), lcid, dwFlags, &V_BSTR(pd));
429 case VT_R4: return VarBstrFromR4(V_R4(ps), lcid, dwFlags, &V_BSTR(pd));
430 case VT_R8: return VarBstrFromR8(V_R8(ps), lcid, dwFlags, &V_BSTR(pd));
431 case VT_DATE: return VarBstrFromDate(V_DATE(ps), lcid, dwFlags, &V_BSTR(pd));
432 case VT_CY: return VarBstrFromCy(V_CY(ps), lcid, dwFlags, &V_BSTR(pd));
433 case VT_DECIMAL: return VarBstrFromDec(&V_DECIMAL(ps), lcid, dwFlags, &V_BSTR(pd));
434 /* case VT_DISPATCH: return VarBstrFromDisp(V_DISPATCH(ps), lcid, dwFlags, &V_BSTR(pd)); */
435 }
436 break;
437
438 case VT_CY:
439 switch (vtFrom)
440 {
441 case VT_EMPTY: V_CY(pd).int64 = 0; return S_OK;
442 case VT_I1: return VarCyFromI1(V_I1(ps), &V_CY(pd));
443 case VT_I2: return VarCyFromI2(V_I2(ps), &V_CY(pd));
444 case VT_I4: return VarCyFromI4(V_I4(ps), &V_CY(pd));
445 case VT_UI1: return VarCyFromUI1(V_UI1(ps), &V_CY(pd));
446 case VT_UI2: return VarCyFromUI2(V_UI2(ps), &V_CY(pd));
447 case VT_UI4: return VarCyFromUI4(V_UI4(ps), &V_CY(pd));
448 case VT_I8: return VarCyFromI8(V_I8(ps), &V_CY(pd));
449 case VT_UI8: return VarCyFromUI8(V_UI8(ps), &V_CY(pd));
450 case VT_R4: return VarCyFromR4(V_R4(ps), &V_CY(pd));
451 case VT_R8: return VarCyFromR8(V_R8(ps), &V_CY(pd));
452 case VT_DATE: return VarCyFromDate(V_DATE(ps), &V_CY(pd));
453 case VT_BOOL: return VarCyFromBool(V_BOOL(ps), &V_CY(pd));
454 case VT_DECIMAL: return VarCyFromDec(&V_DECIMAL(ps), &V_CY(pd));
455 case VT_DISPATCH: return VarCyFromDisp(V_DISPATCH(ps), lcid, &V_CY(pd));
456 case VT_BSTR: return VarCyFromStr(V_BSTR(ps), lcid, dwFlags, &V_CY(pd));
457 }
458 break;
459
460 case VT_DECIMAL:
461 switch (vtFrom)
462 {
463 case VT_EMPTY:
464 case VT_BOOL:
465 DEC_SIGNSCALE(&V_DECIMAL(pd)) = SIGNSCALE(DECIMAL_POS,0);
466 DEC_HI32(&V_DECIMAL(pd)) = 0;
467 DEC_MID32(&V_DECIMAL(pd)) = 0;
468 /* VarDecFromBool() coerces to -1/0, ChangeTypeEx() coerces to 1/0.
469 * VT_NULL and VT_EMPTY always give a 0 value.
470 */
471 DEC_LO32(&V_DECIMAL(pd)) = vtFrom == VT_BOOL && V_BOOL(ps) ? 1 : 0;
472 return S_OK;
473 case VT_I1: return VarDecFromI1(V_I1(ps), &V_DECIMAL(pd));
474 case VT_I2: return VarDecFromI2(V_I2(ps), &V_DECIMAL(pd));
475 case VT_I4: return VarDecFromI4(V_I4(ps), &V_DECIMAL(pd));
476 case VT_UI1: return VarDecFromUI1(V_UI1(ps), &V_DECIMAL(pd));
477 case VT_UI2: return VarDecFromUI2(V_UI2(ps), &V_DECIMAL(pd));
478 case VT_UI4: return VarDecFromUI4(V_UI4(ps), &V_DECIMAL(pd));
479 case VT_I8: return VarDecFromI8(V_I8(ps), &V_DECIMAL(pd));
480 case VT_UI8: return VarDecFromUI8(V_UI8(ps), &V_DECIMAL(pd));
481 case VT_R4: return VarDecFromR4(V_R4(ps), &V_DECIMAL(pd));
482 case VT_R8: return VarDecFromR8(V_R8(ps), &V_DECIMAL(pd));
483 case VT_DATE: return VarDecFromDate(V_DATE(ps), &V_DECIMAL(pd));
484 case VT_CY: return VarDecFromCy(V_CY(ps), &V_DECIMAL(pd));
485 case VT_DISPATCH: return VarDecFromDisp(V_DISPATCH(ps), lcid, &V_DECIMAL(pd));
486 case VT_BSTR: return VarDecFromStr(V_BSTR(ps), lcid, dwFlags, &V_DECIMAL(pd));
487 }
488 break;
489
490 case VT_UNKNOWN:
491 switch (vtFrom)
492 {
493 case VT_DISPATCH:
494 if (V_DISPATCH(ps) == NULL)
495 V_UNKNOWN(pd) = NULL;
496 else
497 res = IDispatch_QueryInterface(V_DISPATCH(ps), &IID_IUnknown, (LPVOID*)&V_UNKNOWN(pd));
498 break;
499 }
500 break;
501
502 case VT_DISPATCH:
503 switch (vtFrom)
504 {
505 case VT_UNKNOWN:
506 if (V_UNKNOWN(ps) == NULL)
507 V_DISPATCH(pd) = NULL;
508 else
509 res = IUnknown_QueryInterface(V_UNKNOWN(ps), &IID_IDispatch, (LPVOID*)&V_DISPATCH(pd));
510 break;
511 }
512 break;
513
514 case VT_RECORD:
515 break;
516 }
517 return res;
518 }
519
520 /* Coerce to/from an array */
521 static inline HRESULT VARIANT_CoerceArray(VARIANTARG* pd, VARIANTARG* ps, VARTYPE vt)
522 {
523 if (vt == VT_BSTR && V_VT(ps) == (VT_ARRAY|VT_UI1))
524 return BstrFromVector(V_ARRAY(ps), &V_BSTR(pd));
525
526 if (V_VT(ps) == VT_BSTR && vt == (VT_ARRAY|VT_UI1))
527 return VectorFromBstr(V_BSTR(ps), &V_ARRAY(ps));
528
529 if (V_VT(ps) == vt)
530 return SafeArrayCopy(V_ARRAY(ps), &V_ARRAY(pd));
531
532 return DISP_E_TYPEMISMATCH;
533 }
534
535 /******************************************************************************
536 * Check if a variants type is valid.
537 */
538 static inline HRESULT VARIANT_ValidateType(VARTYPE vt)
539 {
540 VARTYPE vtExtra = vt & VT_EXTRA_TYPE;
541
542 vt &= VT_TYPEMASK;
543
544 if (!(vtExtra & (VT_VECTOR|VT_RESERVED)))
545 {
546 if (vt < VT_VOID || vt == VT_RECORD || vt == VT_CLSID)
547 {
548 if ((vtExtra & (VT_BYREF|VT_ARRAY)) && vt <= VT_NULL)
549 return DISP_E_BADVARTYPE;
550 if (vt != (VARTYPE)15)
551 return S_OK;
552 }
553 }
554 return DISP_E_BADVARTYPE;
555 }
556
557 /******************************************************************************
558 * VariantInit [OLEAUT32.8]
559 *
560 * Initialise a variant.
561 *
562 * PARAMS
563 * pVarg [O] Variant to initialise
564 *
565 * RETURNS
566 * Nothing.
567 *
568 * NOTES
569 * This function simply sets the type of the variant to VT_EMPTY. It does not
570 * free any existing value, use VariantClear() for that.
571 */
572 void WINAPI VariantInit(VARIANTARG* pVarg)
573 {
574 TRACE("(%p)\n", pVarg);
575
576 V_VT(pVarg) = VT_EMPTY; /* Native doesn't set any other fields */
577 }
578
579 /******************************************************************************
580 * VariantClear [OLEAUT32.9]
581 *
582 * Clear a variant.
583 *
584 * PARAMS
585 * pVarg [I/O] Variant to clear
586 *
587 * RETURNS
588 * Success: S_OK. Any previous value in pVarg is freed and its type is set to VT_EMPTY.
589 * Failure: DISP_E_BADVARTYPE, if the variant is a not a valid variant type.
590 */
591 HRESULT WINAPI VariantClear(VARIANTARG* pVarg)
592 {
593 HRESULT hres = S_OK;
594
595 TRACE("(%p->(%s%s))\n", pVarg, debugstr_VT(pVarg), debugstr_VF(pVarg));
596
597 hres = VARIANT_ValidateType(V_VT(pVarg));
598
599 if (SUCCEEDED(hres))
600 {
601 if (!V_ISBYREF(pVarg))
602 {
603 if (V_ISARRAY(pVarg) || V_VT(pVarg) == VT_SAFEARRAY)
604 {
605 if (V_ARRAY(pVarg))
606 hres = SafeArrayDestroy(V_ARRAY(pVarg));
607 }
608 else if (V_VT(pVarg) == VT_BSTR)
609 {
610 if (V_BSTR(pVarg))
611 SysFreeString(V_BSTR(pVarg));
612 }
613 else if (V_VT(pVarg) == VT_RECORD)
614 {
615 struct __tagBRECORD* pBr = &V_UNION(pVarg,brecVal);
616 if (pBr->pRecInfo)
617 {
618 IRecordInfo_RecordClear(pBr->pRecInfo, pBr->pvRecord);
619 IRecordInfo_Release(pBr->pRecInfo);
620 }
621 }
622 else if (V_VT(pVarg) == VT_DISPATCH ||
623 V_VT(pVarg) == VT_UNKNOWN)
624 {
625 if (V_UNKNOWN(pVarg))
626 IUnknown_Release(V_UNKNOWN(pVarg));
627 }
628 else if (V_VT(pVarg) == VT_VARIANT)
629 {
630 if (V_VARIANTREF(pVarg))
631 VariantClear(V_VARIANTREF(pVarg));
632 }
633 }
634 V_VT(pVarg) = VT_EMPTY;
635 }
636 return hres;
637 }
638
639 /******************************************************************************
640 * Copy an IRecordInfo object contained in a variant.
641 */
642 static HRESULT VARIANT_CopyIRecordInfo(struct __tagBRECORD* pBr)
643 {
644 HRESULT hres = S_OK;
645
646 if (pBr->pRecInfo)
647 {
648 ULONG ulSize;
649
650 hres = IRecordInfo_GetSize(pBr->pRecInfo, &ulSize);
651 if (SUCCEEDED(hres))
652 {
653 PVOID pvRecord = HeapAlloc(GetProcessHeap(), 0, ulSize);
654 if (!pvRecord)
655 hres = E_OUTOFMEMORY;
656 else
657 {
658 memcpy(pvRecord, pBr->pvRecord, ulSize);
659 pBr->pvRecord = pvRecord;
660
661 hres = IRecordInfo_RecordCopy(pBr->pRecInfo, pvRecord, pvRecord);
662 if (SUCCEEDED(hres))
663 IRecordInfo_AddRef(pBr->pRecInfo);
664 }
665 }
666 }
667 else if (pBr->pvRecord)
668 hres = E_INVALIDARG;
669 return hres;
670 }
671
672 /******************************************************************************
673 * VariantCopy [OLEAUT32.10]
674 *
675 * Copy a variant.
676 *
677 * PARAMS
678 * pvargDest [O] Destination for copy
679 * pvargSrc [I] Source variant to copy
680 *
681 * RETURNS
682 * Success: S_OK. pvargDest contains a copy of pvargSrc.
683 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid type.
684 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
685 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
686 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
687 *
688 * NOTES
689 * - If pvargSrc == pvargDest, this function does nothing, and succeeds if
690 * pvargSrc is valid. Otherwise, pvargDest is always cleared using
691 * VariantClear() before pvargSrc is copied to it. If clearing pvargDest
692 * fails, so does this function.
693 * - VT_CLSID is a valid type type for pvargSrc, but not for pvargDest.
694 * - For by-value non-intrinsic types, a deep copy is made, i.e. The whole value
695 * is copied rather than just any pointers to it.
696 * - For by-value object types the object pointer is copied and the objects
697 * reference count increased using IUnknown_AddRef().
698 * - For all by-reference types, only the referencing pointer is copied.
699 */
700 HRESULT WINAPI VariantCopy(VARIANTARG* pvargDest, VARIANTARG* pvargSrc)
701 {
702 HRESULT hres = S_OK;
703
704 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
705 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
706 debugstr_VF(pvargSrc));
707
708 if (V_TYPE(pvargSrc) == VT_CLSID || /* VT_CLSID is a special case */
709 FAILED(VARIANT_ValidateType(V_VT(pvargSrc))))
710 return DISP_E_BADVARTYPE;
711
712 if (pvargSrc != pvargDest &&
713 SUCCEEDED(hres = VariantClear(pvargDest)))
714 {
715 *pvargDest = *pvargSrc; /* Shallow copy the value */
716
717 if (!V_ISBYREF(pvargSrc))
718 {
719 if (V_ISARRAY(pvargSrc))
720 {
721 if (V_ARRAY(pvargSrc))
722 hres = SafeArrayCopy(V_ARRAY(pvargSrc), &V_ARRAY(pvargDest));
723 }
724 else if (V_VT(pvargSrc) == VT_BSTR)
725 {
726 if (V_BSTR(pvargSrc))
727 {
728 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)V_BSTR(pvargSrc), SysStringByteLen(V_BSTR(pvargSrc)));
729 if (!V_BSTR(pvargDest))
730 {
731 TRACE("!V_BSTR(pvargDest), SysAllocStringByteLen() failed to allocate %d bytes\n", SysStringByteLen(V_BSTR(pvargSrc)));
732 hres = E_OUTOFMEMORY;
733 }
734 }
735 }
736 else if (V_VT(pvargSrc) == VT_RECORD)
737 {
738 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
739 }
740 else if (V_VT(pvargSrc) == VT_DISPATCH ||
741 V_VT(pvargSrc) == VT_UNKNOWN)
742 {
743 if (V_UNKNOWN(pvargSrc))
744 IUnknown_AddRef(V_UNKNOWN(pvargSrc));
745 }
746 }
747 }
748 return hres;
749 }
750
751 /* Return the byte size of a variants data */
752 static inline size_t VARIANT_DataSize(const VARIANT* pv)
753 {
754 switch (V_TYPE(pv))
755 {
756 case VT_I1:
757 case VT_UI1: return sizeof(BYTE);
758 case VT_I2:
759 case VT_UI2: return sizeof(SHORT);
760 case VT_INT:
761 case VT_UINT:
762 case VT_I4:
763 case VT_UI4: return sizeof(LONG);
764 case VT_I8:
765 case VT_UI8: return sizeof(LONGLONG);
766 case VT_R4: return sizeof(float);
767 case VT_R8: return sizeof(double);
768 case VT_DATE: return sizeof(DATE);
769 case VT_BOOL: return sizeof(VARIANT_BOOL);
770 case VT_DISPATCH:
771 case VT_UNKNOWN:
772 case VT_BSTR: return sizeof(void*);
773 case VT_CY: return sizeof(CY);
774 case VT_ERROR: return sizeof(SCODE);
775 }
776 TRACE("Shouldn't be called for vt %s%s!\n", debugstr_VT(pv), debugstr_VF(pv));
777 return 0;
778 }
779
780 /******************************************************************************
781 * VariantCopyInd [OLEAUT32.11]
782 *
783 * Copy a variant, dereferencing it it is by-reference.
784 *
785 * PARAMS
786 * pvargDest [O] Destination for copy
787 * pvargSrc [I] Source variant to copy
788 *
789 * RETURNS
790 * Success: S_OK. pvargDest contains a copy of pvargSrc.
791 * Failure: An HRESULT error code indicating the error.
792 *
793 * NOTES
794 * Failure: DISP_E_BADVARTYPE, if either variant has an invalid by-value type.
795 * E_INVALIDARG, if pvargSrc is an invalid by-reference type.
796 * E_OUTOFMEMORY, if memory cannot be allocated. Otherwise an
797 * HRESULT error code from SafeArrayCopy(), IRecordInfo_GetSize(),
798 * or IRecordInfo_RecordCopy(), depending on the type of pvargSrc.
799 *
800 * NOTES
801 * - If pvargSrc is by-value, this function behaves exactly as VariantCopy().
802 * - If pvargSrc is by-reference, the value copied to pvargDest is the pointed-to
803 * value.
804 * - if pvargSrc == pvargDest, this function dereferences in place. Otherwise,
805 * pvargDest is always cleared using VariantClear() before pvargSrc is copied
806 * to it. If clearing pvargDest fails, so does this function.
807 */
808 HRESULT WINAPI VariantCopyInd(VARIANT* pvargDest, VARIANTARG* pvargSrc)
809 {
810 VARIANTARG vTmp, *pSrc = pvargSrc;
811 VARTYPE vt;
812 HRESULT hres = S_OK;
813
814 TRACE("(%p->(%s%s),%p->(%s%s))\n", pvargDest, debugstr_VT(pvargDest),
815 debugstr_VF(pvargDest), pvargSrc, debugstr_VT(pvargSrc),
816 debugstr_VF(pvargSrc));
817
818 if (!V_ISBYREF(pvargSrc))
819 return VariantCopy(pvargDest, pvargSrc);
820
821 /* Argument checking is more lax than VariantCopy()... */
822 vt = V_TYPE(pvargSrc);
823 if (V_ISARRAY(pvargSrc) ||
824 (vt > VT_NULL && vt != (VARTYPE)15 && vt < VT_VOID &&
825 !(V_VT(pvargSrc) & (VT_VECTOR|VT_RESERVED))))
826 {
827 /* OK */
828 }
829 else
830 return E_INVALIDARG; /* ...And the return value for invalid types differs too */
831
832 if (pvargSrc == pvargDest)
833 {
834 /* In place copy. Use a shallow copy of pvargSrc & init pvargDest.
835 * This avoids an expensive VariantCopy() call - e.g. SafeArrayCopy().
836 */
837 vTmp = *pvargSrc;
838 pSrc = &vTmp;
839 V_VT(pvargDest) = VT_EMPTY;
840 }
841 else
842 {
843 /* Copy into another variant. Free the variant in pvargDest */
844 if (FAILED(hres = VariantClear(pvargDest)))
845 {
846 TRACE("VariantClear() of destination failed\n");
847 return hres;
848 }
849 }
850
851 if (V_ISARRAY(pSrc))
852 {
853 /* Native doesn't check that *V_ARRAYREF(pSrc) is valid */
854 hres = SafeArrayCopy(*V_ARRAYREF(pSrc), &V_ARRAY(pvargDest));
855 }
856 else if (V_VT(pSrc) == (VT_BSTR|VT_BYREF))
857 {
858 /* Native doesn't check that *V_BSTRREF(pSrc) is valid */
859 V_BSTR(pvargDest) = SysAllocStringByteLen((char*)*V_BSTRREF(pSrc), SysStringByteLen(*V_BSTRREF(pSrc)));
860 }
861 else if (V_VT(pSrc) == (VT_RECORD|VT_BYREF))
862 {
863 V_UNION(pvargDest,brecVal) = V_UNION(pvargSrc,brecVal);
864 hres = VARIANT_CopyIRecordInfo(&V_UNION(pvargDest,brecVal));
865 }
866 else if (V_VT(pSrc) == (VT_DISPATCH|VT_BYREF) ||
867 V_VT(pSrc) == (VT_UNKNOWN|VT_BYREF))
868 {
869 /* Native doesn't check that *V_UNKNOWNREF(pSrc) is valid */
870 V_UNKNOWN(pvargDest) = *V_UNKNOWNREF(pSrc);
871 if (*V_UNKNOWNREF(pSrc))
872 IUnknown_AddRef(*V_UNKNOWNREF(pSrc));
873 }
874 else if (V_VT(pSrc) == (VT_VARIANT|VT_BYREF))
875 {
876 /* Native doesn't check that *V_VARIANTREF(pSrc) is valid */
877 if (V_VT(V_VARIANTREF(pSrc)) == (VT_VARIANT|VT_BYREF))
878 hres = E_INVALIDARG; /* Don't dereference more than one level */
879 else
880 hres = VariantCopyInd(pvargDest, V_VARIANTREF(pSrc));
881
882 /* Use the dereferenced variants type value, not VT_VARIANT */
883 goto VariantCopyInd_Return;
884 }
885 else if (V_VT(pSrc) == (VT_DECIMAL|VT_BYREF))
886 {
887 memcpy(&DEC_SCALE(&V_DECIMAL(pvargDest)), &DEC_SCALE(V_DECIMALREF(pSrc)),
888 sizeof(DECIMAL) - sizeof(USHORT));
889 }
890 else
891 {
892 /* Copy the pointed to data into this variant */
893 memcpy(&V_BYREF(pvargDest), V_BYREF(pSrc), VARIANT_DataSize(pSrc));
894 }
895
896 V_VT(pvargDest) = V_VT(pSrc) & ~VT_BYREF;
897
898 VariantCopyInd_Return:
899
900 if (pSrc != pvargSrc)
901 VariantClear(pSrc);
902
903 TRACE("returning 0x%08lx, %p->(%s%s)\n", hres, pvargDest,
904 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
905 return hres;
906 }
907
908 /******************************************************************************
909 * VariantChangeType [OLEAUT32.12]
910 *
911 * Change the type of a variant.
912 *
913 * PARAMS
914 * pvargDest [O] Destination for the converted variant
915 * pvargSrc [O] Source variant to change the type of
916 * wFlags [I] VARIANT_ flags from "oleauto.h"
917 * vt [I] Variant type to change pvargSrc into
918 *
919 * RETURNS
920 * Success: S_OK. pvargDest contains the converted value.
921 * Failure: An HRESULT error code describing the failure.
922 *
923 * NOTES
924 * The LCID used for the conversion is LOCALE_USER_DEFAULT.
925 * See VariantChangeTypeEx.
926 */
927 HRESULT WINAPI VariantChangeType(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
928 USHORT wFlags, VARTYPE vt)
929 {
930 return VariantChangeTypeEx( pvargDest, pvargSrc, LOCALE_USER_DEFAULT, wFlags, vt );
931 }
932
933 /******************************************************************************
934 * VariantChangeTypeEx [OLEAUT32.147]
935 *
936 * Change the type of a variant.
937 *
938 * PARAMS
939 * pvargDest [O] Destination for the converted variant
940 * pvargSrc [O] Source variant to change the type of
941 * lcid [I] LCID for the conversion
942 * wFlags [I] VARIANT_ flags from "oleauto.h"
943 * vt [I] Variant type to change pvargSrc into
944 *
945 * RETURNS
946 * Success: S_OK. pvargDest contains the converted value.
947 * Failure: An HRESULT error code describing the failure.
948 *
949 * NOTES
950 * pvargDest and pvargSrc can point to the same variant to perform an in-place
951 * conversion. If the conversion is successful, pvargSrc will be freed.
952 */
953 HRESULT WINAPI VariantChangeTypeEx(VARIANTARG* pvargDest, VARIANTARG* pvargSrc,
954 LCID lcid, USHORT wFlags, VARTYPE vt)
955 {
956 HRESULT res = S_OK;
957
958 TRACE("(%p->(%s%s),%p->(%s%s),0x%08lx,0x%04x,%s%s)\n", pvargDest,
959 debugstr_VT(pvargDest), debugstr_VF(pvargDest), pvargSrc,
960 debugstr_VT(pvargSrc), debugstr_VF(pvargSrc), lcid, wFlags,
961 debugstr_vt(vt), debugstr_vf(vt));
962
963 if (vt == VT_CLSID)
964 res = DISP_E_BADVARTYPE;
965 else
966 {
967 res = VARIANT_ValidateType(V_VT(pvargSrc));
968
969 if (SUCCEEDED(res))
970 {
971 res = VARIANT_ValidateType(vt);
972
973 if (SUCCEEDED(res))
974 {
975 VARIANTARG vTmp, vSrcDeref;
976
977 if(V_ISBYREF(pvargSrc) && !V_BYREF(pvargSrc))
978 res = DISP_E_TYPEMISMATCH;
979 else
980 {
981 V_VT(&vTmp) = VT_EMPTY;
982 V_VT(&vSrcDeref) = VT_EMPTY;
983 VariantClear(&vTmp);
984 VariantClear(&vSrcDeref);
985 }
986
987 if (SUCCEEDED(res))
988 {
989 res = VariantCopyInd(&vSrcDeref, pvargSrc);
990 if (SUCCEEDED(res))
991 {
992 if (V_ISARRAY(&vSrcDeref) || (vt & VT_ARRAY))
993 res = VARIANT_CoerceArray(&vTmp, &vSrcDeref, vt);
994 else
995 res = VARIANT_Coerce(&vTmp, lcid, wFlags, &vSrcDeref, vt);
996
997 if (SUCCEEDED(res)) {
998 V_VT(&vTmp) = vt;
999 VariantCopy(pvargDest, &vTmp);
1000 }
1001 VariantClear(&vTmp);
1002 VariantClear(&vSrcDeref);
1003 }
1004 }
1005 }
1006 }
1007 }
1008
1009 TRACE("returning 0x%08lx, %p->(%s%s)\n", res, pvargDest,
1010 debugstr_VT(pvargDest), debugstr_VF(pvargDest));
1011 return res;
1012 }
1013
1014 /* Date Conversions */
1015
1016 #define IsLeapYear(y) (((y % 4) == 0) && (((y % 100) != 0) || ((y % 400) == 0)))
1017
1018 /* Convert a VT_DATE value to a Julian Date */
1019 static inline int VARIANT_JulianFromDate(int dateIn)
1020 {
1021 int julianDays = dateIn;
1022
1023 julianDays -= DATE_MIN; /* Convert to + days from 1 Jan 100 AD */
1024 julianDays += 1757585; /* Convert to + days from 23 Nov 4713 BC (Julian) */
1025 return julianDays;
1026 }
1027
1028 /* Convert a Julian Date to a VT_DATE value */
1029 static inline int VARIANT_DateFromJulian(int dateIn)
1030 {
1031 int julianDays = dateIn;
1032
1033 julianDays -= 1757585; /* Convert to + days from 1 Jan 100 AD */
1034 julianDays += DATE_MIN; /* Convert to +/- days from 1 Jan 1899 AD */
1035 return julianDays;
1036 }
1037
1038 /* Convert a Julian date to Day/Month/Year - from PostgreSQL */
1039 static inline void VARIANT_DMYFromJulian(int jd, USHORT *year, USHORT *month, USHORT *day)
1040 {
1041 int j, i, l, n;
1042
1043 l = jd + 68569;
1044 n = l * 4 / 146097;
1045 l -= (n * 146097 + 3) / 4;
1046 i = (4000 * (l + 1)) / 1461001;
1047 l += 31 - (i * 1461) / 4;
1048 j = (l * 80) / 2447;
1049 *day = l - (j * 2447) / 80;
1050 l = j / 11;
1051 *month = (j + 2) - (12 * l);
1052 *year = 100 * (n - 49) + i + l;
1053 }
1054
1055 /* Convert Day/Month/Year to a Julian date - from PostgreSQL */
1056 static inline double VARIANT_JulianFromDMY(USHORT year, USHORT month, USHORT day)
1057 {
1058 int m12 = (month - 14) / 12;
1059
1060 return ((1461 * (year + 4800 + m12)) / 4 + (367 * (month - 2 - 12 * m12)) / 12 -
1061 (3 * ((year + 4900 + m12) / 100)) / 4 + day - 32075);
1062 }
1063
1064 /* Macros for accessing DOS format date/time fields */
1065 #define DOS_YEAR(x) (1980 + (x >> 9))
1066 #define DOS_MONTH(x) ((x >> 5) & 0xf)
1067 #define DOS_DAY(x) (x & 0x1f)
1068 #define DOS_HOUR(x) (x >> 11)
1069 #define DOS_MINUTE(x) ((x >> 5) & 0x3f)
1070 #define DOS_SECOND(x) ((x & 0x1f) << 1)
1071 /* Create a DOS format date/time */
1072 #define DOS_DATE(d,m,y) (d | (m << 5) | ((y-1980) << 9))
1073 #define DOS_TIME(h,m,s) ((s >> 1) | (m << 5) | (h << 11))
1074
1075 /* Roll a date forwards or backwards to correct it */
1076 static HRESULT VARIANT_RollUdate(UDATE *lpUd)
1077 {
1078 static const BYTE days[] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
1079
1080 TRACE("Raw date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1081 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1082
1083 /* Years < 100 are treated as 1900 + year */
1084 if (lpUd->st.wYear < 100)
1085 lpUd->st.wYear += 1900;
1086
1087 if (!lpUd->st.wMonth)
1088 {
1089 /* Roll back to December of the previous year */
1090 lpUd->st.wMonth = 12;
1091 lpUd->st.wYear--;
1092 }
1093 else while (lpUd->st.wMonth > 12)
1094 {
1095 /* Roll forward the correct number of months */
1096 lpUd->st.wYear++;
1097 lpUd->st.wMonth -= 12;
1098 }
1099
1100 if (lpUd->st.wYear > 9999 || lpUd->st.wHour > 23 ||
1101 lpUd->st.wMinute > 59 || lpUd->st.wSecond > 59)
1102 return E_INVALIDARG; /* Invalid values */
1103
1104 if (!lpUd->st.wDay)
1105 {
1106 /* Roll back the date one day */
1107 if (lpUd->st.wMonth == 1)
1108 {
1109 /* Roll back to December 31 of the previous year */
1110 lpUd->st.wDay = 31;
1111 lpUd->st.wMonth = 12;
1112 lpUd->st.wYear--;
1113 }
1114 else
1115 {
1116 lpUd->st.wMonth--; /* Previous month */
1117 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1118 lpUd->st.wDay = 29; /* Februaury has 29 days on leap years */
1119 else
1120 lpUd->st.wDay = days[lpUd->st.wMonth]; /* Last day of the month */
1121 }
1122 }
1123 else if (lpUd->st.wDay > 28)
1124 {
1125 int rollForward = 0;
1126
1127 /* Possibly need to roll the date forward */
1128 if (lpUd->st.wMonth == 2 && IsLeapYear(lpUd->st.wYear))
1129 rollForward = lpUd->st.wDay - 29; /* Februaury has 29 days on leap years */
1130 else
1131 rollForward = lpUd->st.wDay - days[lpUd->st.wMonth];
1132
1133 if (rollForward > 0)
1134 {
1135 lpUd->st.wDay = rollForward;
1136 lpUd->st.wMonth++;
1137 if (lpUd->st.wMonth > 12)
1138 {
1139 lpUd->st.wMonth = 1; /* Roll forward into January of the next year */
1140 lpUd->st.wYear++;
1141 }
1142 }
1143 }
1144 TRACE("Rolled date: %d/%d/%d %d:%d:%d\n", lpUd->st.wDay, lpUd->st.wMonth,
1145 lpUd->st.wYear, lpUd->st.wHour, lpUd->st.wMinute, lpUd->st.wSecond);
1146 return S_OK;
1147 }
1148
1149 /**********************************************************************
1150 * DosDateTimeToVariantTime [OLEAUT32.14]
1151 *
1152 * Convert a Dos format date and time into variant VT_DATE format.
1153 *
1154 * PARAMS
1155 * wDosDate [I] Dos format date
1156 * wDosTime [I] Dos format time
1157 * pDateOut [O] Destination for VT_DATE format
1158 *
1159 * RETURNS
1160 * Success: TRUE. pDateOut contains the converted time.
1161 * Failure: FALSE, if wDosDate or wDosTime are invalid (see notes).
1162 *
1163 * NOTES
1164 * - Dos format dates can only hold dates from 1-Jan-1980 to 31-Dec-2099.
1165 * - Dos format times are accurate to only 2 second precision.
1166 * - The format of a Dos Date is:
1167 *| Bits Values Meaning
1168 *| ---- ------ -------
1169 *| 0-4 1-31 Day of the week. 0 rolls back one day. A value greater than
1170 *| the days in the month rolls forward the extra days.
1171 *| 5-8 1-12 Month of the year. 0 rolls back to December of the previous
1172 *| year. 13-15 are invalid.
1173 *| 9-15 0-119 Year based from 1980 (Max 2099). 120-127 are invalid.
1174 * - The format of a Dos Time is:
1175 *| Bits Values Meaning
1176 *| ---- ------ -------
1177 *| 0-4 0-29 Seconds/2. 30 and 31 are invalid.
1178 *| 5-10 0-59 Minutes. 60-63 are invalid.
1179 *| 11-15 0-23 Hours (24 hour clock). 24-32 are invalid.
1180 */
1181 INT WINAPI DosDateTimeToVariantTime(USHORT wDosDate, USHORT wDosTime,
1182 double *pDateOut)
1183 {
1184 UDATE ud;
1185
1186 TRACE("(0x%x(%d/%d/%d),0x%x(%d:%d:%d),%p)\n",
1187 wDosDate, DOS_YEAR(wDosDate), DOS_MONTH(wDosDate), DOS_DAY(wDosDate),
1188 wDosTime, DOS_HOUR(wDosTime), DOS_MINUTE(wDosTime), DOS_SECOND(wDosTime),
1189 pDateOut);
1190
1191 ud.st.wYear = DOS_YEAR(wDosDate);
1192 ud.st.wMonth = DOS_MONTH(wDosDate);
1193 if (ud.st.wYear > 2099 || ud.st.wMonth > 12)
1194 return FALSE;
1195 ud.st.wDay = DOS_DAY(wDosDate);
1196 ud.st.wHour = DOS_HOUR(wDosTime);
1197 ud.st.wMinute = DOS_MINUTE(wDosTime);
1198 ud.st.wSecond = DOS_SECOND(wDosTime);
1199 ud.st.wDayOfWeek = ud.st.wMilliseconds = 0;
1200
1201 return !VarDateFromUdate(&ud, 0, pDateOut);
1202 }
1203
1204 /**********************************************************************
1205 * VariantTimeToDosDateTime [OLEAUT32.13]
1206 *
1207 * Convert a variant format date into a Dos format date and time.
1208 *
1209 * dateIn [I] VT_DATE time format
1210 * pwDosDate [O] Destination for Dos format date
1211 * pwDosTime [O] Destination for Dos format time
1212 *
1213 * RETURNS
1214 * Success: TRUE. pwDosDate and pwDosTime contains the converted values.
1215 * Failure: FALSE, if dateIn cannot be represented in Dos format.
1216 *
1217 * NOTES
1218 * See DosDateTimeToVariantTime() for Dos format details and bugs.
1219 */
1220 INT WINAPI VariantTimeToDosDateTime(double dateIn, USHORT *pwDosDate, USHORT *pwDosTime)
1221 {
1222 UDATE ud;
1223
1224 TRACE("(%g,%p,%p)\n", dateIn, pwDosDate, pwDosTime);
1225
1226 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1227 return FALSE;
1228
1229 if (ud.st.wYear < 1980 || ud.st.wYear > 2099)
1230 return FALSE;
1231
1232 *pwDosDate = DOS_DATE(ud.st.wDay, ud.st.wMonth, ud.st.wYear);
1233 *pwDosTime = DOS_TIME(ud.st.wHour, ud.st.wMinute, ud.st.wSecond);
1234
1235 TRACE("Returning 0x%x(%d/%d/%d), 0x%x(%d:%d:%d)\n",
1236 *pwDosDate, DOS_YEAR(*pwDosDate), DOS_MONTH(*pwDosDate), DOS_DAY(*pwDosDate),
1237 *pwDosTime, DOS_HOUR(*pwDosTime), DOS_MINUTE(*pwDosTime), DOS_SECOND(*pwDosTime));
1238 return TRUE;
1239 }
1240
1241 /***********************************************************************
1242 * SystemTimeToVariantTime [OLEAUT32.184]
1243 *
1244 * Convert a System format date and time into variant VT_DATE format.
1245 *
1246 * PARAMS
1247 * lpSt [I] System format date and time
1248 * pDateOut [O] Destination for VT_DATE format date
1249 *
1250 * RETURNS
1251 * Success: TRUE. *pDateOut contains the converted value.
1252 * Failure: FALSE, if lpSt cannot be represented in VT_DATE format.
1253 */
1254 INT WINAPI SystemTimeToVariantTime(LPSYSTEMTIME lpSt, double *pDateOut)
1255 {
1256 UDATE ud;
1257
1258 TRACE("(%p->%d/%d/%d %d:%d:%d,%p)\n", lpSt, lpSt->wDay, lpSt->wMonth,
1259 lpSt->wYear, lpSt->wHour, lpSt->wMinute, lpSt->wSecond, pDateOut);
1260
1261 if (lpSt->wMonth > 12)
1262 return FALSE;
1263
1264 memcpy(&ud.st, lpSt, sizeof(ud.st));
1265 return !VarDateFromUdate(&ud, 0, pDateOut);
1266 }
1267
1268 /***********************************************************************
1269 * VariantTimeToSystemTime [OLEAUT32.185]
1270 *
1271 * Convert a variant VT_DATE into a System format date and time.
1272 *
1273 * PARAMS
1274 * datein [I] Variant VT_DATE format date
1275 * lpSt [O] Destination for System format date and time
1276 *
1277 * RETURNS
1278 * Success: TRUE. *lpSt contains the converted value.
1279 * Failure: FALSE, if dateIn is too large or small.
1280 */
1281 INT WINAPI VariantTimeToSystemTime(double dateIn, LPSYSTEMTIME lpSt)
1282 {
1283 UDATE ud;
1284
1285 TRACE("(%g,%p)\n", dateIn, lpSt);
1286
1287 if (FAILED(VarUdateFromDate(dateIn, 0, &ud)))
1288 return FALSE;
1289
1290 memcpy(lpSt, &ud.st, sizeof(ud.st));
1291 return TRUE;
1292 }
1293
1294 /***********************************************************************
1295 * VarDateFromUdateEx [OLEAUT32.319]
1296 *
1297 * Convert an unpacked format date and time to a variant VT_DATE.
1298 *
1299 * PARAMS
1300 * pUdateIn [I] Unpacked format date and time to convert
1301 * lcid [I] Locale identifier for the conversion
1302 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1303 * pDateOut [O] Destination for variant VT_DATE.
1304 *
1305 * RETURNS
1306 * Success: S_OK. *pDateOut contains the converted value.
1307 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1308 */
1309 HRESULT WINAPI VarDateFromUdateEx(UDATE *pUdateIn, LCID lcid, ULONG dwFlags, DATE *pDateOut)
1310 {
1311 UDATE ud;
1312 double dateVal;
1313
1314 TRACE("(%p->%d/%d/%d %d:%d:%d:%d %d %d,0x%08lx,0x%08lx,%p)\n", pUdateIn,
1315 pUdateIn->st.wMonth, pUdateIn->st.wDay, pUdateIn->st.wYear,
1316 pUdateIn->st.wHour, pUdateIn->st.wMinute, pUdateIn->st.wSecond,
1317 pUdateIn->st.wMilliseconds, pUdateIn->st.wDayOfWeek,
1318 pUdateIn->wDayOfYear, lcid, dwFlags, pDateOut);
1319
1320 if (lcid != MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT))
1321 FIXME("lcid possibly not handled, treating as en-us\n");
1322
1323 memcpy(&ud, pUdateIn, sizeof(ud));
1324
1325 if (dwFlags & VAR_VALIDDATE)
1326 WARN("Ignoring VAR_VALIDDATE\n");
1327
1328 if (FAILED(VARIANT_RollUdate(&ud)))
1329 return E_INVALIDARG;
1330
1331 /* Date */
1332 dateVal = VARIANT_DateFromJulian(VARIANT_JulianFromDMY(ud.st.wYear, ud.st.wMonth, ud.st.wDay));
1333
1334 /* Time */
1335 dateVal += ud.st.wHour / 24.0;
1336 dateVal += ud.st.wMinute / 1440.0;
1337 dateVal += ud.st.wSecond / 86400.0;
1338 dateVal += ud.st.wMilliseconds / 86400000.0;
1339
1340 TRACE("Returning %g\n", dateVal);
1341 *pDateOut = dateVal;
1342 return S_OK;
1343 }
1344
1345 /***********************************************************************
1346 * VarDateFromUdate [OLEAUT32.330]
1347 *
1348 * Convert an unpacked format date and time to a variant VT_DATE.
1349 *
1350 * PARAMS
1351 * pUdateIn [I] Unpacked format date and time to convert
1352 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1353 * pDateOut [O] Destination for variant VT_DATE.
1354 *
1355 * RETURNS
1356 * Success: S_OK. *pDateOut contains the converted value.
1357 * Failure: E_INVALIDARG, if pUdateIn cannot be represented in VT_DATE format.
1358 *
1359 * NOTES
1360 * This function uses the United States English locale for the conversion. Use
1361 * VarDateFromUdateEx() for alternate locales.
1362 */
1363 HRESULT WINAPI VarDateFromUdate(UDATE *pUdateIn, ULONG dwFlags, DATE *pDateOut)
1364 {
1365 LCID lcid = MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), SORT_DEFAULT);
1366
1367 return VarDateFromUdateEx(pUdateIn, lcid, dwFlags, pDateOut);
1368 }
1369
1370 /***********************************************************************
1371 * VarUdateFromDate [OLEAUT32.331]
1372 *
1373 * Convert a variant VT_DATE into an unpacked format date and time.
1374 *
1375 * PARAMS
1376 * datein [I] Variant VT_DATE format date
1377 * dwFlags [I] Flags controlling the conversion (VAR_ flags from "oleauto.h")
1378 * lpUdate [O] Destination for unpacked format date and time
1379 *
1380 * RETURNS
1381 * Success: S_OK. *lpUdate contains the converted value.
1382 * Failure: E_INVALIDARG, if dateIn is too large or small.
1383 */
1384 HRESULT WINAPI VarUdateFromDate(DATE dateIn, ULONG dwFlags, UDATE *lpUdate)
1385 {
1386 /* Cumulative totals of days per month */
1387 static const USHORT cumulativeDays[] =
1388 {
1389 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
1390 };
1391 double datePart, timePart;
1392 int julianDays;
1393
1394 TRACE("(%g,0x%08lx,%p)\n", dateIn, dwFlags, lpUdate);
1395
1396 if (dateIn <= (DATE_MIN - 1.0) || dateIn >= (DATE_MAX + 1.0))
1397 return E_INVALIDARG;
1398
1399 datePart = dateIn < 0.0 ? ceil(dateIn) : floor(dateIn);
1400 /* Compensate for int truncation (always downwards) */
1401 timePart = dateIn - datePart + 0.00000000001;
1402 if (timePart >= 1.0)
1403 timePart -= 0.00000000001;
1404
1405 /* Date */
1406 julianDays = VARIANT_JulianFromDate(dateIn);
1407 VARIANT_DMYFromJulian(julianDays, &lpUdate->st.wYear, &lpUdate->st.wMonth,
1408 &lpUdate->st.wDay);
1409
1410 datePart = (datePart + 1.5) / 7.0;
1411 lpUdate->st.wDayOfWeek = (datePart - floor(datePart)) * 7;
1412 if (lpUdate->st.wDayOfWeek == 0)
1413 lpUdate->st.wDayOfWeek = 5;
1414 else if (lpUdate->st.wDayOfWeek == 1)
1415 lpUdate->st.wDayOfWeek = 6;
1416 else
1417 lpUdate->st.wDayOfWeek -= 2;
1418
1419 if (lpUdate->st.wMonth > 2 && IsLeapYear(lpUdate->st.wYear))
1420 lpUdate->wDayOfYear = 1; /* After February, in a leap year */
1421 else
1422 lpUdate->wDayOfYear = 0;
1423
1424 lpUdate->wDayOfYear += cumulativeDays[lpUdate->st.wMonth];
1425 lpUdate->wDayOfYear += lpUdate->st.wDay;
1426
1427 /* Time */
1428 timePart *= 24.0;
1429 lpUdate->st.wHour = timePart;
1430 timePart -= lpUdate->st.wHour;
1431 timePart *= 60.0;
1432 lpUdate->st.wMinute = timePart;
1433 timePart -= lpUdate->st.wMinute;
1434 timePart *= 60.0;
1435 lpUdate->st.wSecond = timePart;
1436 timePart -= lpUdate->st.wSecond;
1437 lpUdate->st.wMilliseconds = 0;
1438 if (timePart > 0.5)
1439 {
1440 /* Round the milliseconds, adjusting the time/date forward if needed */
1441 if (lpUdate->st.wSecond < 59)
1442 lpUdate->st.wSecond++;
1443 else
1444 {
1445 lpUdate->st.wSecond = 0;
1446 if (lpUdate->st.wMinute < 59)
1447 lpUdate->st.wMinute++;
1448 else
1449 {
1450 lpUdate->st.wMinute = 0;
1451 if (lpUdate->st.wHour < 23)
1452 lpUdate->st.wHour++;
1453 else
1454 {
1455 lpUdate->st.wHour = 0;
1456 /* Roll over a whole day */
1457 if (++lpUdate->st.wDay > 28)
1458 VARIANT_RollUdate(lpUdate);
1459 }
1460 }
1461 }
1462 }
1463 return S_OK;
1464 }
1465
1466 #define GET_NUMBER_TEXT(fld,name) \
1467 buff[0] = 0; \
1468 if (!GetLocaleInfoW(lcid, lctype|fld, buff, 2)) \
1469 WARN("buffer too small for " #fld "\n"); \
1470 else \
1471 if (buff[0]) lpChars->name = buff[0]; \
1472 TRACE("lcid 0x%lx, " #name "=%d '%c'\n", lcid, lpChars->name, lpChars->name)
1473
1474 /* Get the valid number characters for an lcid */
1475 void VARIANT_GetLocalisedNumberChars(VARIANT_NUMBER_CHARS *lpChars, LCID lcid, DWORD dwFlags)
1476 {
1477 static const VARIANT_NUMBER_CHARS defaultChars = { '-','+','.',',','$',0,'.',',' };
1478 LCTYPE lctype = dwFlags & LOCALE_NOUSEROVERRIDE;
1479 WCHAR buff[4];
1480
1481 memcpy(lpChars, &defaultChars, sizeof(defaultChars));
1482 GET_NUMBER_TEXT(LOCALE_SNEGATIVESIGN, cNegativeSymbol);
1483 GET_NUMBER_TEXT(LOCALE_SPOSITIVESIGN, cPositiveSymbol);
1484 GET_NUMBER_TEXT(LOCALE_SDECIMAL, cDecimalPoint);
1485 GET_NUMBER_TEXT(LOCALE_STHOUSAND, cDigitSeperator);
1486 GET_NUMBER_TEXT(LOCALE_SMONDECIMALSEP, cCurrencyDecimalPoint);
1487 GET_NUMBER_TEXT(LOCALE_SMONTHOUSANDSEP, cCurrencyDigitSeperator);
1488
1489 /* Local currency symbols are often 2 characters */
1490 lpChars->cCurrencyLocal2 = '\0';
1491 switch(GetLocaleInfoW(lcid, lctype|LOCALE_SCURRENCY, buff, sizeof(buff)/sizeof(WCHAR)))
1492 {
1493 case 3: lpChars->cCurrencyLocal2 = buff[1]; /* Fall through */
1494 case 2: lpChars->cCurrencyLocal = buff[0];
1495 break;
1496 default: WARN("buffer too small for LOCALE_SCURRENCY\n");
1497 }
1498 TRACE("lcid 0x%lx, cCurrencyLocal =%d,%d '%c','%c'\n", lcid, lpChars->cCurrencyLocal,
1499 lpChars->cCurrencyLocal2, lpChars->cCurrencyLocal, lpChars->cCurrencyLocal2);
1500 }
1501
1502 /* Number Parsing States */
1503 #define B_PROCESSING_EXPONENT 0x1
1504 #define B_NEGATIVE_EXPONENT 0x2
1505 #define B_EXPONENT_START 0x4
1506 #define B_INEXACT_ZEROS 0x8
1507 #define B_LEADING_ZERO 0x10
1508 #define B_PROCESSING_HEX 0x20
1509 #define B_PROCESSING_OCT 0x40
1510
1511 /**********************************************************************
1512 * VarParseNumFromStr [OLEAUT32.46]
1513 *
1514 * Parse a string containing a number into a NUMPARSE structure.
1515 *
1516 * PARAMS
1517 * lpszStr [I] String to parse number from
1518 * lcid [I] Locale Id for the conversion
1519 * dwFlags [I] 0, or LOCALE_NOUSEROVERRIDE to use system default number chars
1520 * pNumprs [I/O] Destination for parsed number
1521 * rgbDig [O] Destination for digits read in
1522 *
1523 * RETURNS
1524 * Success: S_OK. pNumprs and rgbDig contain the parsed representation of
1525 * the number.
1526 * Failure: E_INVALIDARG, if any parameter is invalid.
1527 * DISP_E_TYPEMISMATCH, if the string is not a number or is formatted
1528 * incorrectly.
1529 * DISP_E_OVERFLOW, if rgbDig is too small to hold the number.
1530 *
1531 * NOTES
1532 * pNumprs must have the following fields set:
1533 * cDig: Set to the size of rgbDig.
1534 * dwInFlags: Set to the allowable syntax of the number using NUMPRS_ flags
1535 * from "oleauto.h".
1536 *
1537 * FIXME
1538 * - I am unsure if this function should parse non-arabic (e.g. Thai)
1539 * numerals, so this has not been implemented.
1540 */
1541 HRESULT WINAPI VarParseNumFromStr(OLECHAR *lpszStr, LCID lcid, ULONG dwFlags,
1542 NUMPARSE *pNumprs, BYTE *rgbDig)
1543 {
1544 VARIANT_NUMBER_CHARS chars;
1545 BYTE rgbTmp[1024];
1546 DWORD dwState = B_EXPONENT_START|B_INEXACT_ZEROS;
1547 int iMaxDigits = sizeof(rgbTmp) / sizeof(BYTE);
1548 int cchUsed = 0;
1549
1550 TRACE("(%s,%ld,0x%08lx,%p,%p)\n", debugstr_w(lpszStr), lcid, dwFlags, pNumprs, rgbDig);
1551
1552 if (!pNumprs || !rgbDig)
1553 return E_INVALIDARG;
1554
1555 if (pNumprs->cDig < iMaxDigits)
1556 iMaxDigits = pNumprs->cDig;
1557
1558 pNumprs->cDig = 0;
1559 pNumprs->dwOutFlags = 0;
1560 pNumprs->cchUsed = 0;
1561 pNumprs->nBaseShift = 0;
1562 pNumprs->nPwr10 = 0;
1563
1564 if (!lpszStr)
1565 return DISP_E_TYPEMISMATCH;
1566
1567 VARIANT_GetLocalisedNumberChars(&chars, lcid, dwFlags);
1568
1569 /* First consume all the leading symbols and space from the string */
1570 while (1)
1571 {
1572 if (pNumprs->dwInFlags & NUMPRS_LEADING_WHITE && isspaceW(*lpszStr))
1573 {
1574 pNumprs->dwOutFlags |= NUMPRS_LEADING_WHITE;
1575 do
1576 {
1577 cchUsed++;
1578 lpszStr++;
1579 } while (isspaceW(*lpszStr));
1580 }
1581 else if (pNumprs->dwInFlags & NUMPRS_LEADING_PLUS &&
1582 *lpszStr == chars.cPositiveSymbol &&
1583 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS))
1584 {
1585 pNumprs->dwOutFlags |= NUMPRS_LEADING_PLUS;
1586 cchUsed++;
1587 lpszStr++;
1588 }
1589 else if (pNumprs->dwInFlags & NUMPRS_LEADING_MINUS &&
1590 *lpszStr == chars.cNegativeSymbol &&
1591 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS))
1592 {
1593 pNumprs->dwOutFlags |= (NUMPRS_LEADING_MINUS|NUMPRS_NEG);
1594 cchUsed++;
1595 lpszStr++;
1596 }
1597 else if (pNumprs->dwInFlags & NUMPRS_CURRENCY &&
1598 !(pNumprs->dwOutFlags & NUMPRS_CURRENCY) &&
1599 *lpszStr == chars.cCurrencyLocal &&
1600 (!chars.cCurrencyLocal2 || lpszStr[1] == chars.cCurrencyLocal2))
1601 {
1602 pNumprs->dwOutFlags |= NUMPRS_CURRENCY;
1603 cchUsed++;
1604 lpszStr++;
1605 /* Only accept currency characters */
1606 chars.cDecimalPoint = chars.cCurrencyDecimalPoint;
1607 chars.cDigitSeperator = chars.cCurrencyDigitSeperator;
1608 }
1609 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == '(' &&
1610 !(pNumprs->dwOutFlags & NUMPRS_PARENS))
1611 {
1612 pNumprs->dwOutFlags |= NUMPRS_PARENS;
1613 cchUsed++;
1614 lpszStr++;
1615 }
1616 else
1617 break;
1618 }
1619
1620 if (!(pNumprs->dwOutFlags & NUMPRS_CURRENCY))
1621 {
1622 /* Only accept non-currency characters */
1623 chars.cCurrencyDecimalPoint = chars.cDecimalPoint;
1624 chars.cCurrencyDigitSeperator = chars.cDigitSeperator;
1625 }
1626
1627 if ((*lpszStr == '&' && (*(lpszStr+1) == 'H' || *(lpszStr+1) == 'h')) &&
1628 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1629 {
1630 dwState |= B_PROCESSING_HEX;
1631 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1632 cchUsed=cchUsed+2;
1633 lpszStr=lpszStr+2;
1634 }
1635 else if ((*lpszStr == '&' && (*(lpszStr+1) == 'O' || *(lpszStr+1) == 'o')) &&
1636 pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1637 {
1638 dwState |= B_PROCESSING_OCT;
1639 pNumprs->dwOutFlags |= NUMPRS_HEX_OCT;
1640 cchUsed=cchUsed+2;
1641 lpszStr=lpszStr+2;
1642 }
1643
1644 /* Strip Leading zeros */
1645 while (*lpszStr == '0')
1646 {
1647 dwState |= B_LEADING_ZERO;
1648 cchUsed++;
1649 lpszStr++;
1650 }
1651
1652 while (*lpszStr)
1653 {
1654 if (isdigitW(*lpszStr))
1655 {
1656 if (dwState & B_PROCESSING_EXPONENT)
1657 {
1658 int exponentSize = 0;
1659 if (dwState & B_EXPONENT_START)
1660 {
1661 if (!isdigitW(*lpszStr))
1662 break; /* No exponent digits - invalid */
1663 while (*lpszStr == '0')
1664 {
1665 /* Skip leading zero's in the exponent */
1666 cchUsed++;
1667 lpszStr++;
1668 }
1669 }
1670
1671 while (isdigitW(*lpszStr))
1672 {
1673 exponentSize *= 10;
1674 exponentSize += *lpszStr - '0';
1675 cchUsed++;
1676 lpszStr++;
1677 }
1678 if (dwState & B_NEGATIVE_EXPONENT)
1679 exponentSize = -exponentSize;
1680 /* Add the exponent into the powers of 10 */
1681 pNumprs->nPwr10 += exponentSize;
1682 dwState &= ~(B_PROCESSING_EXPONENT|B_EXPONENT_START);
1683 lpszStr--; /* back up to allow processing of next char */
1684 }
1685 else
1686 {
1687 if ((pNumprs->cDig >= iMaxDigits) && !(dwState & B_PROCESSING_HEX)
1688 && !(dwState & B_PROCESSING_OCT))
1689 {
1690 pNumprs->dwOutFlags |= NUMPRS_INEXACT;
1691
1692 if (*lpszStr != '0')
1693 dwState &= ~B_INEXACT_ZEROS; /* Inexact number with non-trailing zeros */
1694
1695 /* This digit can't be represented, but count it in nPwr10 */
1696 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1697 pNumprs->nPwr10--;
1698 else
1699 pNumprs->nPwr10++;
1700 }
1701 else
1702 {
1703 if ((dwState & B_PROCESSING_OCT) && ((*lpszStr == '8') || (*lpszStr == '9'))) {
1704 return DISP_E_TYPEMISMATCH;
1705 }
1706
1707 if (pNumprs->dwOutFlags & NUMPRS_DECIMAL)
1708 pNumprs->nPwr10--; /* Count decimal points in nPwr10 */
1709
1710 rgbTmp[pNumprs->cDig] = *lpszStr - '0';
1711 }
1712 pNumprs->cDig++;
1713 cchUsed++;
1714 }
1715 }
1716 else if (*lpszStr == chars.cDigitSeperator && pNumprs->dwInFlags & NUMPRS_THOUSANDS)
1717 {
1718 pNumprs->dwOutFlags |= NUMPRS_THOUSANDS;
1719 cchUsed++;
1720 }
1721 else if (*lpszStr == chars.cDecimalPoint &&
1722 pNumprs->dwInFlags & NUMPRS_DECIMAL &&
1723 !(pNumprs->dwOutFlags & (NUMPRS_DECIMAL|NUMPRS_EXPONENT)))
1724 {
1725 pNumprs->dwOutFlags |= NUMPRS_DECIMAL;
1726 cchUsed++;
1727
1728 /* If we have no digits so far, skip leading zeros */
1729 if (!pNumprs->cDig)
1730 {
1731 while (lpszStr[1] == '0')
1732 {
1733 dwState |= B_LEADING_ZERO;
1734 cchUsed++;
1735 lpszStr++;
1736 pNumprs->nPwr10--;
1737 }
1738 }
1739 }
1740 else if ((*lpszStr == 'e' || *lpszStr == 'E') &&
1741 pNumprs->dwInFlags & NUMPRS_EXPONENT &&
1742 !(pNumprs->dwOutFlags & NUMPRS_EXPONENT))
1743 {
1744 dwState |= B_PROCESSING_EXPONENT;
1745 pNumprs->dwOutFlags |= NUMPRS_EXPONENT;
1746 cchUsed++;
1747 }
1748 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cPositiveSymbol)
1749 {
1750 cchUsed++; /* Ignore positive exponent */
1751 }
1752 else if (dwState & B_PROCESSING_EXPONENT && *lpszStr == chars.cNegativeSymbol)
1753 {
1754 dwState |= B_NEGATIVE_EXPONENT;
1755 cchUsed++;
1756 }
1757 else if (((*lpszStr >= 'a' && *lpszStr <= 'f') ||
1758 (*lpszStr >= 'A' && *lpszStr <= 'F')) &&
1759 dwState & B_PROCESSING_HEX)
1760 {
1761 if (pNumprs->cDig >= iMaxDigits)
1762 {
1763 return DISP_E_OVERFLOW;
1764 }
1765 else
1766 {
1767 if (*lpszStr >= 'a')
1768 rgbTmp[pNumprs->cDig] = *lpszStr - 'a' + 10;
1769 else
1770 rgbTmp[pNumprs->cDig] = *lpszStr - 'A' + 10;
1771 }
1772 pNumprs->cDig++;
1773 cchUsed++;
1774 }
1775 else
1776 break; /* Stop at an unrecognised character */
1777
1778 lpszStr++;
1779 }
1780
1781 if (!pNumprs->cDig && dwState & B_LEADING_ZERO)
1782 {
1783 /* Ensure a 0 on its own gets stored */
1784 pNumprs->cDig = 1;
1785 rgbTmp[0] = 0;
1786 }
1787
1788 if (pNumprs->dwOutFlags & NUMPRS_EXPONENT && dwState & B_PROCESSING_EXPONENT)
1789 {
1790 pNumprs->cchUsed = cchUsed;
1791 return DISP_E_TYPEMISMATCH; /* Failed to completely parse the exponent */
1792 }
1793
1794 if (pNumprs->dwOutFlags & NUMPRS_INEXACT)
1795 {
1796 if (dwState & B_INEXACT_ZEROS)
1797 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* All zeros doesn't set NUMPRS_INEXACT */
1798 } else if(pNumprs->dwInFlags & NUMPRS_HEX_OCT)
1799 {
1800 /* copy all of the digits into the output digit buffer */
1801 /* this is exactly what windows does although it also returns */
1802 /* cDig of X and writes X+Y where Y>=0 number of digits to rgbDig */
1803 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1804
1805 if (dwState & B_PROCESSING_HEX) {
1806 /* hex numbers have always the same format */
1807 pNumprs->nPwr10=0;
1808 pNumprs->nBaseShift=4;
1809 } else {
1810 if (dwState & B_PROCESSING_OCT) {
1811 /* oct numbers have always the same format */
1812 pNumprs->nPwr10=0;
1813 pNumprs->nBaseShift=3;
1814 } else {
1815 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1816 {
1817 pNumprs->nPwr10++;
1818 pNumprs->cDig--;
1819 }
1820 }
1821 }
1822 } else
1823 {
1824 /* Remove trailing zeros from the last (whole number or decimal) part */
1825 while (pNumprs->cDig > 1 && !rgbTmp[pNumprs->cDig - 1])
1826 {
1827 pNumprs->nPwr10++;
1828 pNumprs->cDig--;
1829 }
1830 }
1831
1832 if (pNumprs->cDig <= iMaxDigits)
1833 pNumprs->dwOutFlags &= ~NUMPRS_INEXACT; /* Ignore stripped zeros for NUMPRS_INEXACT */
1834 else
1835 pNumprs->cDig = iMaxDigits; /* Only return iMaxDigits worth of digits */
1836
1837 /* Copy the digits we processed into rgbDig */
1838 memcpy(rgbDig, rgbTmp, pNumprs->cDig * sizeof(BYTE));
1839
1840 /* Consume any trailing symbols and space */
1841 while (1)
1842 {
1843 if ((pNumprs->dwInFlags & NUMPRS_TRAILING_WHITE) && isspaceW(*lpszStr))
1844 {
1845 pNumprs->dwOutFlags |= NUMPRS_TRAILING_WHITE;
1846 do
1847 {
1848 cchUsed++;
1849 lpszStr++;
1850 } while (isspaceW(*lpszStr));
1851 }
1852 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_PLUS &&
1853 !(pNumprs->dwOutFlags & NUMPRS_LEADING_PLUS) &&
1854 *lpszStr == chars.cPositiveSymbol)
1855 {
1856 pNumprs->dwOutFlags |= NUMPRS_TRAILING_PLUS;
1857 cchUsed++;
1858 lpszStr++;
1859 }
1860 else if (pNumprs->dwInFlags & NUMPRS_TRAILING_MINUS &&
1861 !(pNumprs->dwOutFlags & NUMPRS_LEADING_MINUS) &&
1862 *lpszStr == chars.cNegativeSymbol)
1863 {
1864 pNumprs->dwOutFlags |= (NUMPRS_TRAILING_MINUS|NUMPRS_NEG);
1865 cchUsed++;
1866 lpszStr++;
1867 }
1868 else if (pNumprs->dwInFlags & NUMPRS_PARENS && *lpszStr == ')' &&
1869 pNumprs->dwOutFlags & NUMPRS_PARENS)
1870 {
1871 cchUsed++;
1872 lpszStr++;
1873 pNumprs->dwOutFlags |= NUMPRS_NEG;
1874 }
1875 else
1876 break;
1877 }
1878
1879 if (pNumprs->dwOutFlags & NUMPRS_PARENS && !(pNumprs->dwOutFlags & NUMPRS_NEG))
1880 {
1881 pNumprs->cchUsed = cchUsed;
1882 return DISP_E_TYPEMISMATCH; /* Opening parenthesis not matched */
1883 }
1884
1885 if (pNumprs->dwInFlags & NUMPRS_USE_ALL && *lpszStr != '\0')
1886 return DISP_E_TYPEMISMATCH; /* Not all chars were consumed */
1887
1888 if (!pNumprs->cDig)
1889 return DISP_E_TYPEMISMATCH; /* No Number found */
1890
1891 pNumprs->cchUsed = cchUsed;
1892 return S_OK;
1893 }
1894
1895 /* VTBIT flags indicating an integer value */
1896 #define INTEGER_VTBITS (VTBIT_I1|VTBIT_UI1|VTBIT_I2|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|VTBIT_I8|VTBIT_UI8)
1897 /* VTBIT flags indicating a real number value */
1898 #define REAL_VTBITS (VTBIT_R4|VTBIT_R8|VTBIT_CY)
1899
1900 /* Helper macros to check whether bit pattern fits in VARIANT (x is a ULONG64 ) */
1901 #define FITS_AS_I1(x) ((x) >> 8 == 0)
1902 #define FITS_AS_I2(x) ((x) >> 16 == 0)
1903 #define FITS_AS_I4(x) ((x) >> 32 == 0)
1904
1905 /**********************************************************************
1906 * VarNumFromParseNum [OLEAUT32.47]
1907 *
1908 * Convert a NUMPARSE structure into a numeric Variant type.
1909 *
1910 * PARAMS
1911 * pNumprs [I] Source for parsed number. cDig must be set to the size of rgbDig
1912 * rgbDig [I] Source for the numbers digits
1913 * dwVtBits [I] VTBIT_ flags from "oleauto.h" indicating the acceptable dest types
1914 * pVarDst [O] Destination for the converted Variant value.
1915 *
1916 * RETURNS
1917 * Success: S_OK. pVarDst contains the converted value.
1918 * Failure: E_INVALIDARG, if any parameter is invalid.
1919 * DISP_E_OVERFLOW, if the number is too big for the types set in dwVtBits.
1920 *
1921 * NOTES
1922 * - The smallest favoured type present in dwVtBits that can represent the
1923 * number in pNumprs without losing precision is used.
1924 * - Signed types are preferrred over unsigned types of the same size.
1925 * - Preferred types in order are: integer, float, double, currency then decimal.
1926 * - Rounding (dropping of decimal points) occurs without error. See VarI8FromR8()
1927 * for details of the rounding method.
1928 * - pVarDst is not cleared before the result is stored in it.
1929 * - WinXP and Win2003 support VTBIT_I8, VTBIT_UI8 but that's buggy (by
1930 * design?): If some other VTBIT's for integers are specified together
1931 * with VTBIT_I8 and the number will fit only in a VT_I8 Windows will "cast"
1932 * the number to the smallest requested integer truncating this way the
1933 * number. Wine dosn't implement this "feature" (yet?).
1934 */
1935 HRESULT WINAPI VarNumFromParseNum(NUMPARSE *pNumprs, BYTE *rgbDig,
1936 ULONG dwVtBits, VARIANT *pVarDst)
1937 {
1938 /* Scale factors and limits for double arithmetic */
1939 static const double dblMultipliers[11] = {
1940 1.0, 10.0, 100.0, 1000.0, 10000.0, 100000.0,
1941 1000000.0, 10000000.0, 100000000.0, 1000000000.0, 10000000000.0
1942 };
1943 static const double dblMinimums[11] = {
1944 R8_MIN, R8_MIN*10.0, R8_MIN*100.0, R8_MIN*1000.0, R8_MIN*10000.0,
1945 R8_MIN*100000.0, R8_MIN*1000000.0, R8_MIN*10000000.0,
1946 R8_MIN*100000000.0, R8_MIN*1000000000.0, R8_MIN*10000000000.0
1947 };
1948 static const double dblMaximums[11] = {
1949 R8_MAX, R8_MAX/10.0, R8_MAX/100.0, R8_MAX/1000.0, R8_MAX/10000.0,
1950 R8_MAX/100000.0, R8_MAX/1000000.0, R8_MAX/10000000.0,
1951 R8_MAX/100000000.0, R8_MAX/1000000000.0, R8_MAX/10000000000.0
1952 };
1953
1954 int wholeNumberDigits, fractionalDigits, divisor10 = 0, multiplier10 = 0;
1955
1956 TRACE("(%p,%p,0x%lx,%p)\n", pNumprs, rgbDig, dwVtBits, pVarDst);
1957
1958 if (pNumprs->nBaseShift)
1959 {
1960 /* nBaseShift indicates a hex or octal number */
1961 ULONG64 ul64 = 0;
1962 LONG64 l64;
1963 int i;
1964
1965 /* Convert the hex or octal number string into a UI64 */
1966 for (i = 0; i < pNumprs->cDig; i++)
1967 {
1968 if (ul64 > ((UI8_MAX>>pNumprs->nBaseShift) - rgbDig[i]))
1969 {
1970 TRACE("Overflow multiplying digits\n");
1971 return DISP_E_OVERFLOW;
1972 }
1973 ul64 = (ul64<<pNumprs->nBaseShift) + rgbDig[i];
1974 }
1975
1976 /* also make a negative representation */
1977 l64=-ul64;
1978
1979 /* Try signed and unsigned types in size order */
1980 if (dwVtBits & VTBIT_I1 && FITS_AS_I1(ul64))
1981 {
1982 V_VT(pVarDst) = VT_I1;
1983 V_I1(pVarDst) = ul64;
1984 return S_OK;
1985 }
1986 else if (dwVtBits & VTBIT_UI1 && FITS_AS_I1(ul64))
1987 {
1988 V_VT(pVarDst) = VT_UI1;
1989 V_UI1(pVarDst) = ul64;
1990 return S_OK;
1991 }
1992 else if (dwVtBits & VTBIT_I2 && FITS_AS_I2(ul64))
1993 {
1994 V_VT(pVarDst) = VT_I2;
1995 V_I2(pVarDst) = ul64;
1996 return S_OK;
1997 }
1998 else if (dwVtBits & VTBIT_UI2 && FITS_AS_I2(ul64))
1999 {
2000 V_VT(pVarDst) = VT_UI2;
2001 V_UI2(pVarDst) = ul64;
2002 return S_OK;
2003 }
2004 else if (dwVtBits & VTBIT_I4 && FITS_AS_I4(ul64))
2005 {
2006 V_VT(pVarDst) = VT_I4;
2007 V_I4(pVarDst) = ul64;
2008 return S_OK;
2009 }
2010 else if (dwVtBits & VTBIT_UI4 && FITS_AS_I4(ul64))
2011 {
2012 V_VT(pVarDst) = VT_UI4;
2013 V_UI4(pVarDst) = ul64;
2014 return S_OK;
2015 }
2016 else if (dwVtBits & VTBIT_I8 && ((ul64 <= I8_MAX)||(l64>=I8_MIN)))
2017 {
2018 V_VT(pVarDst) = VT_I8;
2019 V_I8(pVarDst) = ul64;
2020 return S_OK;
2021 }
2022 else if (dwVtBits & VTBIT_UI8)
2023 {
2024 V_VT(pVarDst) = VT_UI8;
2025 V_UI8(pVarDst) = ul64;
2026 return S_OK;
2027 }
2028 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2029 {
2030 V_VT(pVarDst) = VT_DECIMAL;
2031 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2032 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2033 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2034 return S_OK;
2035 }
2036 else if (dwVtBits & VTBIT_R4 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2037 {
2038 V_VT(pVarDst) = VT_R4;
2039 if (ul64 <= I4_MAX)
2040 V_R4(pVarDst) = ul64;
2041 else
2042 V_R4(pVarDst) = l64;
2043 return S_OK;
2044 }
2045 else if (dwVtBits & VTBIT_R8 && ((ul64 <= I4_MAX)||(l64 >= I4_MIN)))
2046 {
2047 V_VT(pVarDst) = VT_R8;
2048 if (ul64 <= I4_MAX)
2049 V_R8(pVarDst) = ul64;
2050 else
2051 V_R8(pVarDst) = l64;
2052 return S_OK;
2053 }
2054
2055 TRACE("Overflow: possible return types: 0x%lx, value: %s\n", dwVtBits, wine_dbgstr_longlong(ul64));
2056 return DISP_E_OVERFLOW;
2057 }
2058
2059 /* Count the number of relevant fractional and whole digits stored,
2060 * And compute the divisor/multiplier to scale the number by.
2061 */
2062 if (pNumprs->nPwr10 < 0)
2063 {
2064 if (-pNumprs->nPwr10 >= pNumprs->cDig)
2065 {
2066 /* A real number < +/- 1.0 e.g. 0.1024 or 0.01024 */
2067 wholeNumberDigits = 0;
2068 fractionalDigits = pNumprs->cDig;
2069 divisor10 = -pNumprs->nPwr10;
2070 }
2071 else
2072 {
2073 /* An exactly represented real number e.g. 1.024 */
2074 wholeNumberDigits = pNumprs->cDig + pNumprs->nPwr10;
2075 fractionalDigits = pNumprs->cDig - wholeNumberDigits;
2076 divisor10 = pNumprs->cDig - wholeNumberDigits;
2077 }
2078 }
2079 else if (pNumprs->nPwr10 == 0)
2080 {
2081 /* An exactly represented whole number e.g. 1024 */
2082 wholeNumberDigits = pNumprs->cDig;
2083 fractionalDigits = 0;
2084 }
2085 else /* pNumprs->nPwr10 > 0 */
2086 {
2087 /* A whole number followed by nPwr10 0's e.g. 102400 */
2088 wholeNumberDigits = pNumprs->cDig;
2089 fractionalDigits = 0;
2090 multiplier10 = pNumprs->nPwr10;
2091 }
2092
2093 TRACE("cDig %d; nPwr10 %d, whole %d, frac %d ", pNumprs->cDig,
2094 pNumprs->nPwr10, wholeNumberDigits, fractionalDigits);
2095 TRACE("mult %d; div %d\n", multiplier10, divisor10);
2096
2097 if (dwVtBits & (INTEGER_VTBITS|VTBIT_DECIMAL) &&
2098 (!fractionalDigits || !(dwVtBits & (REAL_VTBITS|VTBIT_CY|VTBIT_DECIMAL))))
2099 {
2100 /* We have one or more integer output choices, and either:
2101 * 1) An integer input value, or
2102 * 2) A real number input value but no floating output choices.
2103 * Alternately, we have a DECIMAL output available and an integer input.
2104 *
2105 * So, place the integer value into pVarDst, using the smallest type
2106 * possible and preferring signed over unsigned types.
2107 */
2108 BOOL bOverflow = FALSE, bNegative;
2109 ULONG64 ul64 = 0;
2110 int i;
2111
2112 /* Convert the integer part of the number into a UI8 */
2113 for (i = 0; i < wholeNumberDigits; i++)
2114 {
2115 if (ul64 > (UI8_MAX / 10 - rgbDig[i]))
2116 {
2117 TRACE("Overflow multiplying digits\n");
2118 bOverflow = TRUE;
2119 break;
2120 }
2121 ul64 = ul64 * 10 + rgbDig[i];
2122 }
2123
2124 /* Account for the scale of the number */
2125 if (!bOverflow && multiplier10)
2126 {
2127 for (i = 0; i < multiplier10; i++)
2128 {
2129 if (ul64 > (UI8_MAX / 10))
2130 {
2131 TRACE("Overflow scaling number\n");
2132 bOverflow = TRUE;
2133 break;
2134 }
2135 ul64 = ul64 * 10;
2136 }
2137 }
2138
2139 /* If we have any fractional digits, round the value.
2140 * Note we don't have to do this if divisor10 is < 1,
2141 * because this means the fractional part must be < 0.5
2142 */
2143 if (!bOverflow && fractionalDigits && divisor10 > 0)
2144 {
2145 const BYTE* fracDig = rgbDig + wholeNumberDigits;
2146 BOOL bAdjust = FALSE;
2147
2148 TRACE("first decimal value is %d\n", *fracDig);
2149
2150 if (*fracDig > 5)
2151 bAdjust = TRUE; /* > 0.5 */
2152 else if (*fracDig == 5)
2153 {
2154 for (i = 1; i < fractionalDigits; i++)
2155 {
2156 if (fracDig[i])
2157 {
2158 bAdjust = TRUE; /* > 0.5 */
2159 break;
2160 }
2161 }
2162 /* If exactly 0.5, round only odd values */
2163 if (i == fractionalDigits && (ul64 & 1))
2164 bAdjust = TRUE;
2165 }
2166
2167 if (bAdjust)
2168 {
2169 if (ul64 == UI8_MAX)
2170 {
2171 TRACE("Overflow after rounding\n");
2172 bOverflow = TRUE;
2173 }
2174 ul64++;
2175 }
2176 }
2177
2178 /* Zero is not a negative number */
2179 bNegative = pNumprs->dwOutFlags & NUMPRS_NEG && ul64 ? TRUE : FALSE;
2180
2181 TRACE("Integer value is %lld, bNeg %d\n", ul64, bNegative);
2182
2183 /* For negative integers, try the signed types in size order */
2184 if (!bOverflow && bNegative)
2185 {
2186 if (dwVtBits & (VTBIT_I1|VTBIT_I2|VTBIT_I4|VTBIT_I8))
2187 {
2188 if (dwVtBits & VTBIT_I1 && ul64 <= -I1_MIN)
2189 {
2190 V_VT(pVarDst) = VT_I1;
2191 V_I1(pVarDst) = -ul64;
2192 return S_OK;
2193 }
2194 else if (dwVtBits & VTBIT_I2 && ul64 <= -I2_MIN)
2195 {
2196 V_VT(pVarDst) = VT_I2;
2197 V_I2(pVarDst) = -ul64;
2198 return S_OK;
2199 }
2200 else if (dwVtBits & VTBIT_I4 && ul64 <= -((LONGLONG)I4_MIN))
2201 {
2202 V_VT(pVarDst) = VT_I4;
2203 V_I4(pVarDst) = -ul64;
2204 return S_OK;
2205 }
2206 else if (dwVtBits & VTBIT_I8 && ul64 <= (ULONGLONG)I8_MAX + 1)
2207 {
2208 V_VT(pVarDst) = VT_I8;
2209 V_I8(pVarDst) = -ul64;
2210 return S_OK;
2211 }
2212 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2213 {
2214 /* Decimal is only output choice left - fast path */
2215 V_VT(pVarDst) = VT_DECIMAL;
2216 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_NEG,0);
2217 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2218 DEC_LO64(&V_DECIMAL(pVarDst)) = -ul64;
2219 return S_OK;
2220 }
2221 }
2222 }
2223 else if (!bOverflow)
2224 {
2225 /* For positive integers, try signed then unsigned types in size order */
2226 if (dwVtBits & VTBIT_I1 && ul64 <= I1_MAX)
2227 {
2228 V_VT(pVarDst) = VT_I1;
2229 V_I1(pVarDst) = ul64;
2230 return S_OK;
2231 }
2232 else if (dwVtBits & VTBIT_UI1 && ul64 <= UI1_MAX)
2233 {
2234 V_VT(pVarDst) = VT_UI1;
2235 V_UI1(pVarDst) = ul64;
2236 return S_OK;
2237 }
2238 else if (dwVtBits & VTBIT_I2 && ul64 <= I2_MAX)
2239 {
2240 V_VT(pVarDst) = VT_I2;
2241 V_I2(pVarDst) = ul64;
2242 return S_OK;
2243 }
2244 else if (dwVtBits & VTBIT_UI2 && ul64 <= UI2_MAX)
2245 {
2246 V_VT(pVarDst) = VT_UI2;
2247 V_UI2(pVarDst) = ul64;
2248 return S_OK;
2249 }
2250 else if (dwVtBits & VTBIT_I4 && ul64 <= I4_MAX)
2251 {
2252 V_VT(pVarDst) = VT_I4;
2253 V_I4(pVarDst) = ul64;
2254 return S_OK;
2255 }
2256 else if (dwVtBits & VTBIT_UI4 && ul64 <= UI4_MAX)
2257 {
2258 V_VT(pVarDst) = VT_UI4;
2259 V_UI4(pVarDst) = ul64;
2260 return S_OK;
2261 }
2262 else if (dwVtBits & VTBIT_I8 && ul64 <= I8_MAX)
2263 {
2264 V_VT(pVarDst) = VT_I8;
2265 V_I8(pVarDst) = ul64;
2266 return S_OK;
2267 }
2268 else if (dwVtBits & VTBIT_UI8)
2269 {
2270 V_VT(pVarDst) = VT_UI8;
2271 V_UI8(pVarDst) = ul64;
2272 return S_OK;
2273 }
2274 else if ((dwVtBits & REAL_VTBITS) == VTBIT_DECIMAL)
2275 {
2276 /* Decimal is only output choice left - fast path */
2277 V_VT(pVarDst) = VT_DECIMAL;
2278 DEC_SIGNSCALE(&V_DECIMAL(pVarDst)) = SIGNSCALE(DECIMAL_POS,0);
2279 DEC_HI32(&V_DECIMAL(pVarDst)) = 0;
2280 DEC_LO64(&V_DECIMAL(pVarDst)) = ul64;
2281 return S_OK;
2282 }
2283 }
2284 }
2285
2286 if (dwVtBits & REAL_VTBITS)
2287 {
2288 /* Try to put the number into a float or real */
2289 BOOL bOverflow = FALSE, bNegative = pNumprs->dwOutFlags & NUMPRS_NEG;
2290 double whole = 0.0;
2291 int i;
2292
2293 /* Convert the number into a double */
2294 for (i = 0; i < pNumprs->cDig; i++)
2295 whole = whole * 10.0 + rgbDig[i];
2296
2297 TRACE("Whole double value is %16.16g\n", whole);
2298
2299 /* Account for the scale */
2300 while (multiplier10 > 10)
2301 {
2302 if (whole > dblMaximums[10])
2303 {
2304 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2305 bOverflow = TRUE;
2306 break;
2307 }
2308 whole = whole * dblMultipliers[10];
2309 multiplier10 -= 10;
2310 }
2311 if (multiplier10)
2312 {
2313 if (whole > dblMaximums[multiplier10])
2314 {
2315 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY);
2316 bOverflow = TRUE;
2317 }
2318 else
2319 whole = whole * dblMultipliers[multiplier10];
2320 }
2321
2322 TRACE("Scaled double value is %16.16g\n", whole);
2323
2324 while (divisor10 > 10)
2325 {
2326 if (whole < dblMinimums[10] && whole != 0)
2327 {
2328 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2329 bOverflow = TRUE;
2330 break;
2331 }
2332 whole = whole / dblMultipliers[10];
2333 divisor10 -= 10;
2334 }
2335 if (divisor10)
2336 {
2337 if (whole < dblMinimums[divisor10] && whole != 0)
2338 {
2339 dwVtBits &= ~(VTBIT_R4|VTBIT_R8|VTBIT_CY); /* Underflow */
2340 bOverflow = TRUE;
2341 }
2342 else
2343 whole = whole / dblMultipliers[divisor10];
2344 }
2345 if (!bOverflow)
2346 TRACE("Final double value is %16.16g\n", whole);
2347
2348 if (dwVtBits & VTBIT_R4 &&
2349 ((whole <= R4_MAX && whole >= R4_MIN) || whole == 0.0))
2350 {
2351 TRACE("Set R4 to final value\n");
2352 V_VT(pVarDst) = VT_R4; /* Fits into a float */
2353 V_R4(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2354 return S_OK;
2355 }
2356
2357 if (dwVtBits & VTBIT_R8)
2358 {
2359 TRACE("Set R8 to final value\n");
2360 V_VT(pVarDst) = VT_R8; /* Fits into a double */
2361 V_R8(pVarDst) = pNumprs->dwOutFlags & NUMPRS_NEG ? -whole : whole;
2362 return S_OK;
2363 }
2364
2365 if (dwVtBits & VTBIT_CY)
2366 {
2367 if (SUCCEEDED(VarCyFromR8(bNegative ? -whole : whole, &V_CY(pVarDst))))
2368 {
2369 V_VT(pVarDst) = VT_CY; /* Fits into a currency */
2370 TRACE("Set CY to final value\n");
2371 return S_OK;
2372 }
2373 TRACE("Value Overflows CY\n");
2374 }
2375 }
2376
2377 if (dwVtBits & VTBIT_DECIMAL)
2378 {
2379 int i;
2380 ULONG carry;
2381 ULONG64 tmp;
2382 DECIMAL* pDec = &V_DECIMAL(pVarDst);
2383
2384 DECIMAL_SETZERO(*pDec);
2385 DEC_LO32(pDec) = 0;
2386
2387 if (pNumprs->dwOutFlags & NUMPRS_NEG)
2388 DEC_SIGN(pDec) = DECIMAL_NEG;
2389 else
2390 DEC_SIGN(pDec) = DECIMAL_POS;
2391
2392 /* Factor the significant digits */
2393 for (i = 0; i < pNumprs->cDig; i++)
2394 {
2395 tmp = (ULONG64)DEC_LO32(pDec) * 10 + rgbDig[i];
2396 carry = (ULONG)(tmp >> 32);
2397 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2398 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2399 carry = (ULONG)(tmp >> 32);
2400 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2401 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2402 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2403
2404 if (tmp >> 32 & UI4_MAX)
2405 {
2406 VarNumFromParseNum_DecOverflow:
2407 TRACE("Overflow\n");
2408 DEC_LO32(pDec) = DEC_MID32(pDec) = DEC_HI32(pDec) = UI4_MAX;
2409 return DISP_E_OVERFLOW;
2410 }
2411 }
2412
2413 /* Account for the scale of the number */
2414 while (multiplier10 > 0)
2415 {
2416 tmp = (ULONG64)DEC_LO32(pDec) * 10;
2417 carry = (ULONG)(tmp >> 32);
2418 DEC_LO32(pDec) = (ULONG)(tmp & UI4_MAX);
2419 tmp = (ULONG64)DEC_MID32(pDec) * 10 + carry;
2420 carry = (ULONG)(tmp >> 32);
2421 DEC_MID32(pDec) = (ULONG)(tmp & UI4_MAX);
2422 tmp = (ULONG64)DEC_HI32(pDec) * 10 + carry;
2423 DEC_HI32(pDec) = (ULONG)(tmp & UI4_MAX);
2424
2425 if (tmp >> 32 & UI4_MAX)
2426 goto VarNumFromParseNum_DecOverflow;
2427 multiplier10--;
2428 }
2429 DEC_SCALE(pDec) = divisor10;
2430
2431 V_VT(pVarDst) = VT_DECIMAL;
2432 return S_OK;
2433 }
2434 return DISP_E_OVERFLOW; /* No more output choices */
2435 }
2436
2437 /**********************************************************************
2438 * VarCat [OLEAUT32.318]
2439 *
2440 * Concatenates one variant onto another.
2441 *
2442 * PARAMS
2443 * left [I] First variant
2444 * right [I] Second variant
2445 * result [O] Result variant
2446 *
2447 * RETURNS
2448 * Success: S_OK.
2449 * Failure: An HRESULT error code indicating the error.
2450 */
2451 HRESULT WINAPI VarCat(LPVARIANT left, LPVARIANT right, LPVARIANT out)
2452 {
2453 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2454 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), out);
2455
2456 /* Should we VariantClear out? */
2457 /* Can we handle array, vector, by ref etc. */
2458 if ((V_VT(left)&VT_TYPEMASK) == VT_NULL &&
2459 (V_VT(right)&VT_TYPEMASK) == VT_NULL)
2460 {
2461 V_VT(out) = VT_NULL;
2462 return S_OK;
2463 }
2464
2465 if (V_VT(left) == VT_BSTR && V_VT(right) == VT_BSTR)
2466 {
2467 V_VT(out) = VT_BSTR;
2468 VarBstrCat (V_BSTR(left), V_BSTR(right), &V_BSTR(out));
2469 return S_OK;
2470 }
2471 if (V_VT(left) == VT_BSTR) {
2472 VARIANT bstrvar;
2473 HRESULT hres;
2474
2475 V_VT(out) = VT_BSTR;
2476 VariantInit(&bstrvar);
2477 hres = VariantChangeTypeEx(&bstrvar,right,0,0,VT_BSTR);
2478 if (hres) {
2479 FIXME("Failed to convert right side from vt %d to VT_BSTR?\n",V_VT(right));
2480 return hres;
2481 }
2482 VarBstrCat (V_BSTR(left), V_BSTR(&bstrvar), &V_BSTR(out));
2483 return S_OK;
2484 }
2485 if (V_VT(right) == VT_BSTR) {
2486 VARIANT bstrvar;
2487 HRESULT hres;
2488
2489 V_VT(out) = VT_BSTR;
2490 VariantInit(&bstrvar);
2491 hres = VariantChangeTypeEx(&bstrvar,left,0,0,VT_BSTR);
2492 if (hres) {
2493 FIXME("Failed to convert right side from vt %d to VT_BSTR?\n",V_VT(right));
2494 return hres;
2495 }
2496 VarBstrCat (V_BSTR(&bstrvar), V_BSTR(right), &V_BSTR(out));
2497 return S_OK;
2498 }
2499 FIXME ("types %d / %d not supported\n",V_VT(left)&VT_TYPEMASK, V_VT(right)&VT_TYPEMASK);
2500 return S_OK;
2501 }
2502
2503 /**********************************************************************
2504 * VarCmp [OLEAUT32.176]
2505 *
2506 * flags can be:
2507 * NORM_IGNORECASE, NORM_IGNORENONSPACE, NORM_IGNORESYMBOLS
2508 * NORM_IGNOREWIDTH, NORM_IGNOREKANATYPE, NORM_IGNOREKASHIDA
2509 *
2510 */
2511 HRESULT WINAPI VarCmp(LPVARIANT left, LPVARIANT right, LCID lcid, DWORD flags)
2512 {
2513 BOOL lOk = TRUE;
2514 BOOL rOk = TRUE;
2515 LONGLONG lVal = -1;
2516 LONGLONG rVal = -1;
2517 VARIANT rv,lv;
2518 DWORD xmask;
2519 HRESULT rc;
2520
2521 TRACE("(%p->(%s%s),%p->(%s%s),0x%08lx,0x%08lx)\n", left, debugstr_VT(left),
2522 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), lcid, flags);
2523
2524 VariantInit(&lv);VariantInit(&rv);
2525 V_VT(right) &= ~0x8000; /* hack since we sometime get this flag. */
2526 V_VT(left) &= ~0x8000; /* hack since we sometime get this flag. */
2527
2528 /* If either are null, then return VARCMP_NULL */
2529 if ((V_VT(left)&VT_TYPEMASK) == VT_NULL ||
2530 (V_VT(right)&VT_TYPEMASK) == VT_NULL)
2531 return VARCMP_NULL;
2532
2533 /* Strings - use VarBstrCmp */
2534 if ((V_VT(left)&VT_TYPEMASK) == VT_BSTR &&
2535 (V_VT(right)&VT_TYPEMASK) == VT_BSTR) {
2536 return VarBstrCmp(V_BSTR(left), V_BSTR(right), lcid, flags);
2537 }
2538
2539 xmask = (1<<(V_VT(left)&VT_TYPEMASK))|(1<<(V_VT(right)&VT_TYPEMASK));
2540 if (xmask & VTBIT_R8) {
2541 rc = VariantChangeType(&lv,left,0,VT_R8);
2542 if (FAILED(rc)) return rc;
2543 rc = VariantChangeType(&rv,right,0,VT_R8);
2544 if (FAILED(rc)) return rc;
2545
2546 if (V_R8(&lv) == V_R8(&rv)) return VARCMP_EQ;
2547 if (V_R8(&lv) < V_R8(&rv)) return VARCMP_LT;
2548 if (V_R8(&lv) > V_R8(&rv)) return VARCMP_GT;
2549 return E_FAIL; /* can't get here */
2550 }
2551 if (xmask & VTBIT_R4) {
2552 rc = VariantChangeType(&lv,left,0,VT_R4);
2553 if (FAILED(rc)) return rc;
2554 rc = VariantChangeType(&rv,right,0,VT_R4);
2555 if (FAILED(rc)) return rc;
2556
2557 if (V_R4(&lv) == V_R4(&rv)) return VARCMP_EQ;
2558 if (V_R4(&lv) < V_R4(&rv)) return VARCMP_LT;
2559 if (V_R4(&lv) > V_R4(&rv)) return VARCMP_GT;
2560 return E_FAIL; /* can't get here */
2561 }
2562
2563 /* Integers - Ideally like to use VarDecCmp, but no Dec support yet
2564 Use LONGLONG to maximize ranges */
2565 lOk = TRUE;
2566 switch (V_VT(left)&VT_TYPEMASK) {
2567 case VT_I1 : lVal = V_I1(left); break;
2568 case VT_I2 : lVal = V_I2(left); break;
2569 case VT_I4 :
2570 case VT_INT : lVal = V_I4(left); break;
2571 case VT_UI1 : lVal = V_UI1(left); break;
2572 case VT_UI2 : lVal = V_UI2(left); break;
2573 case VT_UI4 :
2574 case VT_UINT : lVal = V_UI4(left); break;
2575 case VT_BOOL : lVal = V_BOOL(left); break;
2576 case VT_EMPTY : lVal = 0; break;
2577 default: lOk = FALSE;
2578 }
2579
2580 rOk = TRUE;
2581 switch (V_VT(right)&VT_TYPEMASK) {
2582 case VT_I1 : rVal = V_I1(right); break;
2583 case VT_I2 : rVal = V_I2(right); break;
2584 case VT_I4 :
2585 case VT_INT : rVal = V_I4(right); break;
2586 case VT_UI1 : rVal = V_UI1(right); break;
2587 case VT_UI2 : rVal = V_UI2(right); break;
2588 case VT_UI4 :
2589 case VT_UINT : rVal = V_UI4(right); break;
2590 case VT_BOOL : rVal = V_BOOL(right); break;
2591 case VT_EMPTY : rVal = 0; break;
2592 default: rOk = FALSE;
2593 }
2594
2595 if (lOk && rOk) {
2596 if (lVal < rVal) {
2597 return VARCMP_LT;
2598 } else if (lVal > rVal) {
2599 return VARCMP_GT;
2600 } else {
2601 return VARCMP_EQ;
2602 }
2603 }
2604
2605 /* Dates */
2606 if ((V_VT(left)&VT_TYPEMASK) == VT_DATE &&
2607 (V_VT(right)&VT_TYPEMASK) == VT_DATE) {
2608
2609 if (floor(V_DATE(left)) == floor(V_DATE(right))) {
2610 /* Due to floating point rounding errors, calculate varDate in whole numbers) */
2611 double wholePart = 0.0;
2612 double leftR;
2613 double rightR;
2614
2615 /* Get the fraction * 24*60*60 to make it into whole seconds */
2616 wholePart = (double) floor( V_DATE(left) );
2617 if (wholePart == 0) wholePart = 1;
2618 leftR = floor(fmod( V_DATE(left), wholePart ) * (24*60*60));
2619
2620 wholePart = (double) floor( V_DATE(right) );
2621 if (wholePart == 0) wholePart = 1;
2622 rightR = floor(fmod( V_DATE(right), wholePart ) * (24*60*60));
2623
2624 if (leftR < rightR) {
2625 return VARCMP_LT;
2626 } else if (leftR > rightR) {
2627 return VARCMP_GT;
2628 } else {
2629 return VARCMP_EQ;
2630 }
2631
2632 } else if (V_DATE(left) < V_DATE(right)) {
2633 return VARCMP_LT;
2634 } else if (V_DATE(left) > V_DATE(right)) {
2635 return VARCMP_GT;
2636 }
2637 }
2638 FIXME("VarCmp partial implementation, doesn't support vt 0x%x / 0x%x\n",V_VT(left), V_VT(right));
2639 return E_FAIL;
2640 }
2641
2642 /**********************************************************************
2643 * VarAnd [OLEAUT32.142]
2644 *
2645 * Computes the logical AND of two variants.
2646 *
2647 * PARAMS
2648 * left [I] First variant
2649 * right [I] Second variant
2650 * result [O] Result variant
2651 *
2652 * RETURNS
2653 * Success: S_OK.
2654 * Failure: An HRESULT error code indicating the error.
2655 */
2656 HRESULT WINAPI VarAnd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2657 {
2658 HRESULT rc = E_FAIL;
2659
2660 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2661 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
2662
2663 if ((V_VT(left)&VT_TYPEMASK) == VT_BOOL &&
2664 (V_VT(right)&VT_TYPEMASK) == VT_BOOL) {
2665
2666 V_VT(result) = VT_BOOL;
2667 if (V_BOOL(left) && V_BOOL(right)) {
2668 V_BOOL(result) = VARIANT_TRUE;
2669 } else {
2670 V_BOOL(result) = VARIANT_FALSE;
2671 }
2672 rc = S_OK;
2673
2674 } else {
2675 /* Integers */
2676 BOOL lOk = TRUE;
2677 BOOL rOk = TRUE;
2678 LONGLONG lVal = -1;
2679 LONGLONG rVal = -1;
2680 LONGLONG res = -1;
2681 int resT = 0; /* Testing has shown I2 & I2 == I2, all else
2682 becomes I4, even unsigned ints (incl. UI2) */
2683
2684 lOk = TRUE;
2685 switch (V_VT(left)&VT_TYPEMASK) {
2686 case VT_I1 : lVal = V_I1(left); resT=VT_I4; break;
2687 case VT_I2 : lVal = V_I2(left); resT=VT_I2; break;
2688 case VT_I4 :
2689 case VT_INT : lVal = V_I4(left); resT=VT_I4; break;
2690 case VT_UI1 : lVal = V_UI1(left); resT=VT_I4; break;
2691 case VT_UI2 : lVal = V_UI2(left); resT=VT_I4; break;
2692 case VT_UI4 :
2693 case VT_UINT : lVal = V_UI4(left); resT=VT_I4; break;
2694 case VT_BOOL : rVal = V_BOOL(left); resT=VT_I4; break;
2695 default: lOk = FALSE;
2696 }
2697
2698 rOk = TRUE;
2699 switch (V_VT(right)&VT_TYPEMASK) {
2700 case VT_I1 : rVal = V_I1(right); resT=VT_I4; break;
2701 case VT_I2 : rVal = V_I2(right); resT=max(VT_I2, resT); break;
2702 case VT_I4 :
2703 case VT_INT : rVal = V_I4(right); resT=VT_I4; break;
2704 case VT_UI1 : rVal = V_UI1(right); resT=VT_I4; break;
2705 case VT_UI2 : rVal = V_UI2(right); resT=VT_I4; break;
2706 case VT_UI4 :
2707 case VT_UINT : rVal = V_UI4(right); resT=VT_I4; break;
2708 case VT_BOOL : rVal = V_BOOL(right); resT=VT_I4; break;
2709 default: rOk = FALSE;
2710 }
2711
2712 if (lOk && rOk) {
2713 res = (lVal & rVal);
2714 V_VT(result) = resT;
2715 switch (resT) {
2716 case VT_I2 : V_I2(result) = res; break;
2717 case VT_I4 : V_I4(result) = res; break;
2718 default:
2719 FIXME("Unexpected result variant type %x\n", resT);
2720 V_I4(result) = res;
2721 }
2722 rc = S_OK;
2723
2724 } else {
2725 FIXME("VarAnd stub\n");
2726 }
2727 }
2728
2729 TRACE("returning 0x%8lx (%s%s),%ld\n", rc, debugstr_VT(result),
2730 debugstr_VF(result), V_VT(result) == VT_I4 ? V_I4(result) : V_I2(result));
2731 return rc;
2732 }
2733
2734 /**********************************************************************
2735 * VarAdd [OLEAUT32.141]
2736 *
2737 * Add two variants.
2738 *
2739 * PARAMS
2740 * left [I] First variant
2741 * right [I] Second variant
2742 * result [O] Result variant
2743 *
2744 * RETURNS
2745 * Success: S_OK.
2746 * Failure: An HRESULT error code indicating the error.
2747 *
2748 * NOTES
2749 * Native VarAdd up to and including WinXP dosn't like as input variants
2750 * I1, UI2, UI4, UI8, INT and UINT.
2751 *
2752 * Native VarAdd dosn't check for NULL in/out pointers and crashes. We do the
2753 * same here.
2754 *
2755 * FIXME
2756 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
2757 * case.
2758 */
2759 HRESULT WINAPI VarAdd(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2760 {
2761 HRESULT hres;
2762 VARTYPE lvt, rvt, resvt, tvt;
2763 VARIANT lv, rv, tv;
2764 double r8res;
2765
2766 /* Variant priority for coercion. Sorted from lowest to highest.
2767 VT_ERROR shows an invalid input variant type. */
2768 enum coerceprio { vt_EMPTY, vt_UI1, vt_I2, vt_I4, vt_I8, vt_BSTR,vt_R4,
2769 vt_R8, vt_CY, vt_DATE, vt_DECIMAL, vt_DISPATCH, vt_NULL,
2770 vt_ERROR };
2771 /* Mapping from priority to variant type. Keep in sync with coerceprio! */
2772 VARTYPE prio2vt[] = { VT_EMPTY, VT_UI1, VT_I2, VT_I4, VT_I8, VT_BSTR, VT_R4,
2773 VT_R8, VT_CY, VT_DATE, VT_DECIMAL, VT_DISPATCH,
2774 VT_NULL, VT_ERROR };
2775
2776 /* Mapping for coercion from input variant to priority of result variant. */
2777 static VARTYPE coerce[] = {
2778 /* VT_EMPTY, VT_NULL, VT_I2, VT_I4, VT_R4 */
2779 vt_EMPTY, vt_NULL, vt_I2, vt_I4, vt_R4,
2780 /* VT_R8, VT_CY, VT_DATE, VT_BSTR, VT_DISPATCH */
2781 vt_R8, vt_CY, vt_DATE, vt_BSTR, vt_DISPATCH,
2782 /* VT_ERROR, VT_BOOL, VT_VARIANT, VT_UNKNOWN, VT_DECIMAL */
2783 vt_ERROR, vt_I2, vt_ERROR, vt_ERROR, vt_DECIMAL,
2784 /* 15, VT_I1, VT_UI1, VT_UI2, VT_UI4 VT_I8 */
2785 vt_ERROR, vt_ERROR, vt_UI1, vt_ERROR, vt_ERROR, vt_I8
2786 };
2787
2788 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2789 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right),
2790 result);
2791
2792 VariantInit(&lv);
2793 VariantInit(&rv);
2794 VariantInit(&tv);
2795 lvt = V_VT(left)&VT_TYPEMASK;
2796 rvt = V_VT(right)&VT_TYPEMASK;
2797
2798 /* If we have any flag set (VT_ARRAY, VT_VECTOR, etc.) bail out.
2799 Same for any input variant type > VT_I8 */
2800 if (V_VT(left) & ~VT_TYPEMASK || V_VT(right) & ~VT_TYPEMASK ||
2801 lvt > VT_I8 || rvt > VT_I8) {
2802 hres = DISP_E_BADVARTYPE;
2803 goto end;
2804 }
2805
2806 /* Determine the variant type to coerce to. */
2807 if (coerce[lvt] > coerce[rvt]) {
2808 resvt = prio2vt[coerce[lvt]];
2809 tvt = prio2vt[coerce[rvt]];
2810 } else {
2811 resvt = prio2vt[coerce[rvt]];
2812 tvt = prio2vt[coerce[lvt]];
2813 }
2814
2815 /* Special cases where the result variant type is defined by both
2816 input variants and not only that with the highest priority */
2817 if (resvt == VT_BSTR) {
2818 if (tvt == VT_EMPTY || tvt == VT_BSTR)
2819 resvt = VT_BSTR;
2820 else
2821 resvt = VT_R8;
2822 }
2823 if (resvt == VT_R4 && (tvt == VT_BSTR || tvt == VT_I8 || tvt == VT_I4))
2824 resvt = VT_R8;
2825
2826 /* For overflow detection use the biggest compatible type for the
2827 addition */
2828 switch (resvt) {
2829 case VT_ERROR:
2830 hres = DISP_E_BADVARTYPE;
2831 goto end;
2832 case VT_NULL:
2833 hres = S_OK;
2834 V_VT(result) = VT_NULL;
2835 goto end;
2836 case VT_DISPATCH:
2837 FIXME("cannot handle variant type VT_DISPATCH\n");
2838 hres = DISP_E_TYPEMISMATCH;
2839 goto end;
2840 case VT_EMPTY:
2841 resvt = VT_I2;
2842 /* Fall through */
2843 case VT_UI1:
2844 case VT_I2:
2845 case VT_I4:
2846 case VT_I8:
2847 tvt = VT_I8;
2848 break;
2849 case VT_DATE:
2850 case VT_R4:
2851 tvt = VT_R8;
2852 break;
2853 default:
2854 tvt = resvt;
2855 }
2856
2857 /* Now coerce the variants */
2858 hres = VariantChangeType(&lv, left, 0, tvt);
2859 if (FAILED(hres))
2860 goto end;
2861 hres = VariantChangeType(&rv, right, 0, tvt);
2862 if (FAILED(hres))
2863 goto end;
2864
2865 /* Do the math */
2866 hres = S_OK;
2867 V_VT(&tv) = tvt;
2868 V_VT(result) = resvt;
2869 switch (tvt) {
2870 case VT_DECIMAL:
2871 hres = VarDecAdd(&V_DECIMAL(&lv), &V_DECIMAL(&rv),
2872 &V_DECIMAL(result));
2873 goto end;
2874 case VT_CY:
2875 hres = VarCyAdd(V_CY(&lv), V_CY(&rv), &V_CY(result));
2876 goto end;
2877 case VT_BSTR:
2878 /* We do not add those, we concatenate them. */
2879 hres = VarBstrCat(V_BSTR(&lv), V_BSTR(&rv), &V_BSTR(result));
2880 goto end;
2881 case VT_I8:
2882 /* Overflow detection */
2883 r8res = (double)V_I8(&lv) + (double)V_I8(&rv);
2884 if (r8res > (double)I8_MAX || r8res < (double)I8_MIN) {
2885 V_VT(result) = VT_R8;
2886 V_R8(result) = r8res;
2887 goto end;
2888 } else
2889 V_I8(&tv) = V_I8(&lv) + V_I8(&rv);
2890 break;
2891 case VT_R8:
2892 /* FIXME: overflow detection */
2893 V_R8(&tv) = V_R8(&lv) + V_R8(&rv);
2894 break;
2895 default:
2896 ERR("We shouldn't get here! tvt = %d!\n", tvt);
2897 break;
2898 }
2899 if (resvt != tvt) {
2900 if ((hres = VariantChangeType(result, &tv, 0, resvt)) != S_OK) {
2901 /* Overflow! Change to the vartype with the next higher priority.
2902 With one exception: I4 ==> R8 even if it would fit in I8 */
2903 if (resvt == VT_I4)
2904 resvt = VT_R8;
2905 else
2906 resvt = prio2vt[coerce[resvt] + 1];
2907 hres = VariantChangeType(result, &tv, 0, resvt);
2908 }
2909 } else
2910 hres = VariantCopy(result, &tv);
2911
2912 end:
2913 if (hres != S_OK) {
2914 V_VT(result) = VT_EMPTY;
2915 V_I4(result) = 0; /* No V_EMPTY */
2916 }
2917 VariantClear(&lv);
2918 VariantClear(&rv);
2919 VariantClear(&tv);
2920 TRACE("returning 0x%8lx (variant type %s)\n", hres, debugstr_VT(result));
2921 return hres;
2922 }
2923
2924 /**********************************************************************
2925 * VarMul [OLEAUT32.156]
2926 *
2927 * Multiply two variants.
2928 *
2929 * PARAMS
2930 * left [I] First variant
2931 * right [I] Second variant
2932 * result [O] Result variant
2933 *
2934 * RETURNS
2935 * Success: S_OK.
2936 * Failure: An HRESULT error code indicating the error.
2937 *
2938 * NOTES
2939 * Native VarMul up to and including WinXP dosn't like as input variants
2940 * I1, UI2, UI4, UI8, INT and UINT. But it can multiply apples with oranges.
2941 *
2942 * Native VarMul dosn't check for NULL in/out pointers and crashes. We do the
2943 * same here.
2944 *
2945 * FIXME
2946 * Overflow checking for R8 (double) overflow. Return DISP_E_OVERFLOW in that
2947 * case.
2948 */
2949 HRESULT WINAPI VarMul(LPVARIANT left, LPVARIANT right, LPVARIANT result)
2950 {
2951 HRESULT hres;
2952 VARTYPE lvt, rvt, resvt, tvt;
2953 VARIANT lv, rv, tv;
2954 double r8res;
2955
2956 /* Variant priority for coercion. Sorted from lowest to highest.
2957 VT_ERROR shows an invalid input variant type. */
2958 enum coerceprio { vt_UI1 = 0, vt_I2, vt_I4, vt_I8, vt_CY, vt_R4, vt_R8,
2959 vt_DECIMAL, vt_NULL, vt_ERROR };
2960 /* Mapping from priority to variant type. Keep in sync with coerceprio! */
2961 VARTYPE prio2vt[] = { VT_UI1, VT_I2, VT_I4, VT_I8, VT_CY, VT_R4, VT_R8,
2962 VT_DECIMAL, VT_NULL, VT_ERROR };
2963
2964 /* Mapping for coercion from input variant to priority of result variant. */
2965 static VARTYPE coerce[] = {
2966 /* VT_EMPTY, VT_NULL, VT_I2, VT_I4, VT_R4 */
2967 vt_UI1, vt_NULL, vt_I2, vt_I4, vt_R4,
2968 /* VT_R8, VT_CY, VT_DATE, VT_BSTR, VT_DISPATCH */
2969 vt_R8, vt_CY, vt_R8, vt_R8, vt_ERROR,
2970 /* VT_ERROR, VT_BOOL, VT_VARIANT, VT_UNKNOWN, VT_DECIMAL */
2971 vt_ERROR, vt_I2, vt_ERROR, vt_ERROR, vt_DECIMAL,
2972 /* 15, VT_I1, VT_UI1, VT_UI2, VT_UI4 VT_I8 */
2973 vt_ERROR, vt_ERROR, vt_UI1, vt_ERROR, vt_ERROR, vt_I8
2974 };
2975
2976 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
2977 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right),
2978 result);
2979
2980 VariantInit(&lv);
2981 VariantInit(&rv);
2982 VariantInit(&tv);
2983 lvt = V_VT(left)&VT_TYPEMASK;
2984 rvt = V_VT(right)&VT_TYPEMASK;
2985
2986 /* If we have any flag set (VT_ARRAY, VT_VECTOR, etc.) bail out.
2987 Same for any input variant type > VT_I8 */
2988 if (V_VT(left) & ~VT_TYPEMASK || V_VT(right) & ~VT_TYPEMASK ||
2989 lvt > VT_I8 || rvt > VT_I8) {
2990 hres = DISP_E_BADVARTYPE;
2991 goto end;
2992 }
2993
2994 /* Determine the variant type to coerce to. */
2995 if (coerce[lvt] > coerce[rvt]) {
2996 resvt = prio2vt[coerce[lvt]];
2997 tvt = prio2vt[coerce[rvt]];
2998 } else {
2999 resvt = prio2vt[coerce[rvt]];
3000 tvt = prio2vt[coerce[lvt]];
3001 }
3002
3003 /* Special cases where the result variant type is defined by both
3004 input variants and not only that with the highest priority */
3005 if (resvt == VT_R4 && (tvt == VT_CY || tvt == VT_I8 || tvt == VT_I4))
3006 resvt = VT_R8;
3007 if (lvt == VT_EMPTY && rvt == VT_EMPTY)
3008 resvt = VT_I2;
3009
3010 /* For overflow detection use the biggest compatible type for the
3011 multiplication */
3012 switch (resvt) {
3013 case VT_ERROR:
3014 hres = DISP_E_BADVARTYPE;
3015 goto end;
3016 case VT_NULL:
3017 hres = S_OK;
3018 V_VT(result) = VT_NULL;
3019 goto end;
3020 case VT_UI1:
3021 case VT_I2:
3022 case VT_I4:
3023 case VT_I8:
3024 tvt = VT_I8;
3025 break;
3026 case VT_R4:
3027 tvt = VT_R8;
3028 break;
3029 default:
3030 tvt = resvt;
3031 }
3032
3033 /* Now coerce the variants */
3034 hres = VariantChangeType(&lv, left, 0, tvt);
3035 if (FAILED(hres))
3036 goto end;
3037 hres = VariantChangeType(&rv, right, 0, tvt);
3038 if (FAILED(hres))
3039 goto end;
3040
3041 /* Do the math */
3042 hres = S_OK;
3043 V_VT(&tv) = tvt;
3044 V_VT(result) = resvt;
3045 switch (tvt) {
3046 case VT_DECIMAL:
3047 hres = VarDecMul(&V_DECIMAL(&lv), &V_DECIMAL(&rv),
3048 &V_DECIMAL(result));
3049 goto end;
3050 case VT_CY:
3051 hres = VarCyMul(V_CY(&lv), V_CY(&rv), &V_CY(result));
3052 goto end;
3053 case VT_I8:
3054 /* Overflow detection */
3055 r8res = (double)V_I8(&lv) * (double)V_I8(&rv);
3056 if (r8res > (double)I8_MAX || r8res < (double)I8_MIN) {
3057 V_VT(result) = VT_R8;
3058 V_R8(result) = r8res;
3059 goto end;
3060 } else
3061 V_I8(&tv) = V_I8(&lv) * V_I8(&rv);
3062 break;
3063 case VT_R8:
3064 /* FIXME: overflow detection */
3065 V_R8(&tv) = V_R8(&lv) * V_R8(&rv);
3066 break;
3067 default:
3068 ERR("We shouldn't get here! tvt = %d!\n", tvt);
3069 break;
3070 }
3071 if (resvt != tvt) {
3072 while ((hres = VariantChangeType(result, &tv, 0, resvt)) != S_OK) {
3073 /* Overflow! Change to the vartype with the next higher priority.
3074 With one exception: I4 ==> R8 even if it would fit in I8 */
3075 if (resvt == VT_I4)
3076 resvt = VT_R8;
3077 else
3078 resvt = prio2vt[coerce[resvt] + 1];
3079 }
3080 } else
3081 hres = VariantCopy(result, &tv);
3082
3083 end:
3084 if (hres != S_OK) {
3085 V_VT(result) = VT_EMPTY;
3086 V_I4(result) = 0; /* No V_EMPTY */
3087 }
3088 VariantClear(&lv);
3089 VariantClear(&rv);
3090 VariantClear(&tv);
3091 TRACE("returning 0x%8lx (variant type %s)\n", hres, debugstr_VT(result));
3092 return hres;
3093 }
3094
3095 /**********************************************************************
3096 * VarDiv [OLEAUT32.143]
3097 *
3098 * Divides one variant with another.
3099 *
3100 * PARAMS
3101 * left [I] First variant
3102 * right [I] Second variant
3103 * result [O] Result variant
3104 *
3105 * RETURNS
3106 * Success: S_OK.
3107 * Failure: An HRESULT error code indicating the error.
3108 */
3109 HRESULT WINAPI VarDiv(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3110 {
3111 HRESULT rc = E_FAIL;
3112 VARTYPE lvt,rvt,resvt;
3113 VARIANT lv,rv;
3114 BOOL found;
3115
3116 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3117 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
3118
3119 VariantInit(&lv);VariantInit(&rv);
3120 lvt = V_VT(left)&VT_TYPEMASK;
3121 rvt = V_VT(right)&VT_TYPEMASK;
3122 found = FALSE;resvt = VT_VOID;
3123 if (((1<<lvt) | (1<<rvt)) & (VTBIT_R4|VTBIT_R8)) {
3124 found = TRUE;
3125 resvt = VT_R8;
3126 }
3127 if (!found && (((1<<lvt) | (1<<rvt)) & (VTBIT_I1|VTBIT_I2|VTBIT_UI1|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|(1<<VT_INT)|(1<<VT_UINT)))) {
3128 found = TRUE;
3129 resvt = VT_I4;
3130 }
3131 if (!found) {
3132 FIXME("can't expand vt %d vs %d to a target type.\n",lvt,rvt);
3133 return E_FAIL;
3134 }
3135 rc = VariantChangeType(&lv, left, 0, resvt);
3136 if (FAILED(rc)) {
3137 FIXME("Could not convert 0x%x to %d?\n",V_VT(left),resvt);
3138 return rc;
3139 }
3140 rc = VariantChangeType(&rv, right, 0, resvt);
3141 if (FAILED(rc)) {
3142 FIXME("Could not convert 0x%x to %d?\n",V_VT(right),resvt);
3143 return rc;
3144 }
3145 switch (resvt) {
3146 case VT_R8:
3147 if (V_R8(&rv) == 0) return DISP_E_DIVBYZERO;
3148 V_VT(result) = resvt;
3149 V_R8(result) = V_R8(&lv) / V_R8(&rv);
3150 rc = S_OK;
3151 break;
3152 case VT_I4:
3153 if (V_I4(&rv) == 0) return DISP_E_DIVBYZERO;
3154 V_VT(result) = resvt;
3155 V_I4(result) = V_I4(&lv) / V_I4(&rv);
3156 rc = S_OK;
3157 break;
3158 }
3159 TRACE("returning 0x%8lx (%s%s),%g\n", rc, debugstr_VT(result),
3160 debugstr_VF(result), V_VT(result) == VT_R8 ? V_R8(result) : (double)V_I4(result));
3161 return rc;
3162 }
3163
3164 /**********************************************************************
3165 * VarSub [OLEAUT32.159]
3166 *
3167 * Subtract two variants.
3168 *
3169 * PARAMS
3170 * left [I] First variant
3171 * right [I] Second variant
3172 * result [O] Result variant
3173 *
3174 * RETURNS
3175 * Success: S_OK.
3176 * Failure: An HRESULT error code indicating the error.
3177 */
3178 HRESULT WINAPI VarSub(LPVARIANT left, LPVARIANT right, LPVARIANT result)
3179 {
3180 HRESULT rc = E_FAIL;
3181 VARTYPE lvt,rvt,resvt;
3182 VARIANT lv,rv;
3183 BOOL found;
3184
3185 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
3186 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
3187
3188 VariantInit(&lv);VariantInit(&rv);
3189 lvt = V_VT(left)&VT_TYPEMASK;
3190 rvt = V_VT(right)&VT_TYPEMASK;
3191 found = FALSE;resvt = VT_VOID;
3192 if (((1<<lvt) | (1<<rvt)) & ((1<<VT_DATE)|(1<<VT_R4)|(1<<VT_R8))) {
3193 found = TRUE;
3194 resvt = VT_R8;
3195 }
3196 if (!found && (((1<<lvt) | (1<<rvt)) & (VTBIT_I1|VTBIT_I2|VTBIT_UI1|VTBIT_UI2|VTBIT_I4|VTBIT_UI4|(1<<VT_INT)|(1<<VT_UINT)))) {
3197 found = TRUE;
3198 resvt = VT_I4;
3199 }
3200 if (!found) {
3201 FIXME("can't expand vt %d vs %d to a target type.\n",lvt,rvt);
3202 return E_FAIL;
3203 }
3204 rc = VariantChangeType(&lv, left, 0, resvt);
3205 if (FAILED(rc)) {
3206 FIXME("Could not convert 0x%x to %d?\n",V_VT(left),resvt);
3207 return rc;
3208 }
3209 rc = VariantChangeType(&rv, right, 0, resvt);
3210 if (FAILED(rc)) {
3211 FIXME("Could not convert 0x%x to %d?\n",V_VT(right),resvt);
3212 return rc;
3213 }
3214 switch (resvt) {
3215 case VT_R8:
3216 V_VT(result) = resvt;
3217 V_R8(result) = V_R8(&lv) - V_R8(&rv);
3218 rc = S_OK;
3219 break;
3220 case VT_I4:
3221 V_VT(result) = resvt;
3222 V_I4(result) = V_I4(&lv) - V_I4(&rv);
3223 rc = S_OK;
3224 break;
3225 }
3226 TRACE("returning 0x%8lx (%s%s),%g\n", rc, debugstr_VT(result),
3227 debugstr_VF(result), V_VT(result) == VT_R8 ? V_R8(result) : (double)V_I4(result));
3228 return rc;
3229 }
3230
3231 /**********************************************************************
3232 * VarOr [OLEAUT32.157]
3233 *
3234 * Perform a logical or (OR) operation on two variants.
3235 *
3236 * PARAMS
3237 * pVarLeft [I] First variant
3238 * pVarRight [I] Variant to OR with pVarLeft
3239 * pVarOut [O] Destination for OR result
3240 *
3241 * RETURNS
3242 * Success: S_OK. pVarOut contains the result of the operation with its type
3243 * taken from the table listed under VarXor().
3244 * Failure: An HRESULT error code indicating the error.
3245 *
3246 * NOTES
3247 * See the Notes section of VarXor() for further information.
3248 */
3249 HRESULT WINAPI VarOr(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
3250 {
3251 VARTYPE vt = VT_I4;
3252 VARIANT varLeft, varRight, varStr;
3253 HRESULT hRet;
3254
3255 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
3256 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
3257 debugstr_VF(pVarRight), pVarOut);
3258
3259 if (V_EXTRA_TYPE(pVarLeft) || V_EXTRA_TYPE(pVarRight) ||
3260 V_VT(pVarLeft) == VT_UNKNOWN || V_VT(pVarRight) == VT_UNKNOWN ||
3261 V_VT(pVarLeft) == VT_DISPATCH || V_VT(pVarRight) == VT_DISPATCH ||
3262 V_VT(pVarLeft) == VT_RECORD || V_VT(pVarRight) == VT_RECORD)
3263 return DISP_E_BADVARTYPE;
3264
3265 V_VT(&varLeft) = V_VT(&varRight) = V_VT(&varStr) = VT_EMPTY;
3266
3267 if (V_VT(pVarLeft) == VT_NULL || V_VT(pVarRight) == VT_NULL)
3268 {
3269 /* NULL OR Zero is NULL, NULL OR value is value */
3270 if (V_VT(pVarLeft) == VT_NULL)
3271 pVarLeft = pVarRight; /* point to the non-NULL var */
3272
3273 V_VT(pVarOut) = VT_NULL;
3274 V_I4(pVarOut) = 0;
3275
3276 switch (V_VT(pVarLeft))
3277 {
3278 case VT_DATE: case VT_R8:
3279 if (V_R8(pVarLeft))
3280 goto VarOr_AsEmpty;
3281 return S_OK;
3282 case VT_BOOL:
3283 if (V_BOOL(pVarLeft))
3284 *pVarOut = *pVarLeft;
3285 return S_OK;
3286 case VT_I2: case VT_UI2:
3287 if (V_I2(pVarLeft))
3288 goto VarOr_AsEmpty;
3289 return S_OK;
3290 case VT_I1:
3291 if (V_I1(pVarLeft))
3292 goto VarOr_AsEmpty;
3293 return S_OK;
3294 case VT_UI1:
3295 if (V_UI1(pVarLeft))
3296 *pVarOut = *pVarLeft;
3297 return S_OK;
3298 case VT_R4:
3299 if (V_R4(pVarLeft))
3300 goto VarOr_AsEmpty;
3301 return S_OK;
3302 case VT_I4: case VT_UI4: case VT_INT: case VT_UINT:
3303 if (V_I4(pVarLeft))
3304 goto VarOr_AsEmpty;
3305 return S_OK;
3306 case VT_CY:
3307 if (V_CY(pVarLeft).int64)
3308 goto VarOr_AsEmpty;
3309 return S_OK;
3310 case VT_I8: case VT_UI8:
3311 if (V_I8(pVarLeft))
3312 goto VarOr_AsEmpty;
3313 return S_OK;
3314 case VT_DECIMAL:
3315 if (DEC_HI32(&V_DECIMAL(pVarLeft)) || DEC_LO64(&V_DECIMAL(pVarLeft)))
3316 goto VarOr_AsEmpty;
3317 return S_OK;
3318 case VT_BSTR:
3319 {
3320 VARIANT_BOOL b;
3321
3322 if (!V_BSTR(pVarLeft))
3323 return DISP_E_BADVARTYPE;
3324
3325 hRet = VarBoolFromStr(V_BSTR(pVarLeft), LOCALE_USER_DEFAULT, VAR_LOCALBOOL, &b);
3326 if (SUCCEEDED(hRet) && b)
3327 {
3328 V_VT(pVarOut) = VT_BOOL;
3329 V_BOOL(pVarOut) = b;
3330 }
3331 return hRet;
3332 }
3333 case VT_NULL: case VT_EMPTY:
3334 V_VT(pVarOut) = VT_NULL;
3335 return S_OK;
3336 default:
3337 return DISP_E_BADVARTYPE;
3338 }
3339 }
3340
3341 if (V_VT(pVarLeft) == VT_EMPTY || V_VT(pVarRight) == VT_EMPTY)
3342 {
3343 if (V_VT(pVarLeft) == VT_EMPTY)
3344 pVarLeft = pVarRight; /* point to the non-EMPTY var */
3345
3346 VarOr_AsEmpty:
3347 /* Since one argument is empty (0), OR'ing it with the other simply
3348 * gives the others value (as 0|x => x). So just convert the other
3349 * argument to the required result type.
3350 */
3351 switch (V_VT(pVarLeft))
3352 {
3353 case VT_BSTR:
3354 if (!V_BSTR(pVarLeft))
3355 return DISP_E_BADVARTYPE;
3356
3357 hRet = VariantCopy(&varStr, pVarLeft);
3358 if (FAILED(hRet))
3359 goto VarOr_Exit;
3360 pVarLeft = &varStr;
3361 hRet = VariantChangeType(pVarLeft, pVarLeft, 0, VT_BOOL);
3362 if (FAILED(hRet))
3363 goto VarOr_Exit;
3364 /* Fall Through ... */
3365 case VT_EMPTY: case VT_UI1: case VT_BOOL: case VT_I2:
3366 V_VT(pVarOut) = VT_I2;
3367 break;
3368 case VT_DATE: case VT_CY: case VT_DECIMAL: case VT_R4: case VT_R8:
3369 case VT_I1: case VT_UI2: case VT_I4: case VT_UI4:
3370 case VT_INT: case VT_UINT: case VT_UI8:
3371 V_VT(pVarOut) = VT_I4;
3372 break;
3373 case VT_I8:
3374 V_VT(pVarOut) = VT_I8;
3375 break;
3376 default:
3377 return DISP_E_BADVARTYPE;
3378 }
3379 hRet = VariantCopy(&varLeft, pVarLeft);
3380 if (FAILED(hRet))
3381 goto VarOr_Exit;
3382 pVarLeft = &varLeft;
3383 hRet = VariantChangeType(pVarOut, pVarLeft, 0, V_VT(pVarOut));
3384 goto VarOr_Exit;
3385 }
3386
3387 if (V_VT(pVarLeft) == VT_BOOL && V_VT(pVarRight) == VT_BOOL)
3388 {
3389 V_VT(pVarOut) = VT_BOOL;
3390 V_BOOL(pVarOut) = V_BOOL(pVarLeft) | V_BOOL(pVarRight);
3391 return S_OK;
3392 }
3393
3394 if (V_VT(pVarLeft) == VT_UI1 && V_VT(pVarRight) == VT_UI1)
3395 {
3396 V_VT(pVarOut) = VT_UI1;
3397 V_UI1(pVarOut) = V_UI1(pVarLeft) | V_UI1(pVarRight);
3398 return S_OK;
3399 }
3400
3401 if (V_VT(pVarLeft) == VT_BSTR)
3402 {
3403 hRet = VariantCopy(&varStr, pVarLeft);
3404 if (FAILED(hRet))
3405 goto VarOr_Exit;
3406 pVarLeft = &varStr;
3407 hRet = VariantChangeType(pVarLeft, pVarLeft, 0, VT_BOOL);
3408 if (FAILED(hRet))
3409 goto VarOr_Exit;
3410 }
3411
3412 if (V_VT(pVarLeft) == VT_BOOL &&
3413 (V_VT(pVarRight) == VT_BOOL || V_VT(pVarRight) == VT_BSTR))
3414 {
3415 vt = VT_BOOL;
3416 }
3417 else if ((V_VT(pVarLeft) == VT_BOOL || V_VT(pVarLeft) == VT_UI1 ||
3418 V_VT(pVarLeft) == VT_I2 || V_VT(pVarLeft) == VT_BSTR) &&
3419 (V_VT(pVarRight) == VT_BOOL || V_VT(pVarRight) == VT_UI1 ||
3420 V_VT(pVarRight) == VT_I2 || V_VT(pVarRight) == VT_BSTR))
3421 {
3422 vt = VT_I2;
3423 }
3424 else if (V_VT(pVarLeft) == VT_I8 || V_VT(pVarRight) == VT_I8)
3425 {
3426 if (V_VT(pVarLeft) == VT_INT || V_VT(pVarRight) == VT_INT)
3427 return DISP_E_TYPEMISMATCH;
3428 vt = VT_I8;
3429 }
3430
3431 hRet = VariantCopy(&varLeft, pVarLeft);
3432 if (FAILED(hRet))
3433 goto VarOr_Exit;
3434
3435 hRet = VariantCopy(&varRight, pVarRight);
3436 if (FAILED(hRet))
3437 goto VarOr_Exit;
3438
3439 if (vt == VT_I4 && V_VT(&varLeft) == VT_UI4)
3440 V_VT(&varLeft) = VT_I4; /* Don't overflow */
3441 else
3442 {
3443 double d;
3444
3445 if (V_VT(&varLeft) == VT_BSTR &&
3446 FAILED(VarR8FromStr(V_BSTR(&varLeft), LOCALE_USER_DEFAULT, 0, &d)))
3447 hRet = VariantChangeType(&varLeft, &varLeft, VARIANT_LOCALBOOL, VT_BOOL);
3448 if (SUCCEEDED(hRet) && V_VT(&varLeft) != vt)
3449 hRet = VariantChangeType(&varLeft, &varLeft, 0, vt);
3450 if (FAILED(hRet))
3451 goto VarOr_Exit;
3452 }
3453
3454 if (vt == VT_I4 && V_VT(&varRight) == VT_UI4)
3455 V_VT(&varRight) = VT_I4; /* Don't overflow */
3456 else
3457 {
3458 double d;
3459
3460 if (V_VT(&varRight) == VT_BSTR &&
3461 FAILED(VarR8FromStr(V_BSTR(&varRight), LOCALE_USER_DEFAULT, 0, &d)))
3462 hRet = VariantChangeType(&varRight, &varRight, VARIANT_LOCALBOOL, VT_BOOL);
3463 if (SUCCEEDED(hRet) && V_VT(&varRight) != vt)
3464 hRet = VariantChangeType(&varRight, &varRight, 0, vt);
3465 if (FAILED(hRet))
3466 goto VarOr_Exit;
3467 }
3468
3469 V_VT(pVarOut) = vt;
3470 if (vt == VT_I8)
3471 {
3472 V_I8(pVarOut) = V_I8(&varLeft) | V_I8(&varRight);
3473 }
3474 else if (vt == VT_I4)
3475 {
3476 V_I4(pVarOut) = V_I4(&varLeft) | V_I4(&varRight);
3477 }
3478 else
3479 {
3480 V_I2(pVarOut) = V_I2(&varLeft) | V_I2(&varRight);
3481 }
3482
3483 VarOr_Exit:
3484 VariantClear(&varStr);
3485 VariantClear(&varLeft);
3486 VariantClear(&varRight);
3487 return hRet;
3488 }
3489
3490 /**********************************************************************
3491 * VarAbs [OLEAUT32.168]
3492 *
3493 * Convert a variant to its absolute value.
3494 *
3495 * PARAMS
3496 * pVarIn [I] Source variant
3497 * pVarOut [O] Destination for converted value
3498 *
3499 * RETURNS
3500 * Success: S_OK. pVarOut contains the absolute value of pVarIn.
3501 * Failure: An HRESULT error code indicating the error.
3502 *
3503 * NOTES
3504 * - This function does not process by-reference variants.
3505 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3506 * according to the following table:
3507 *| Input Type Output Type
3508 *| ---------- -----------
3509 *| VT_BOOL VT_I2
3510 *| VT_BSTR VT_R8
3511 *| (All others) Unchanged
3512 */
3513 HRESULT WINAPI VarAbs(LPVARIANT pVarIn, LPVARIANT pVarOut)
3514 {
3515 VARIANT varIn;
3516 HRESULT hRet = S_OK;
3517
3518 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3519 debugstr_VF(pVarIn), pVarOut);
3520
3521 if (V_ISARRAY(pVarIn) || V_VT(pVarIn) == VT_UNKNOWN ||
3522 V_VT(pVarIn) == VT_DISPATCH || V_VT(pVarIn) == VT_RECORD ||
3523 V_VT(pVarIn) == VT_ERROR)
3524 return DISP_E_TYPEMISMATCH;
3525
3526 *pVarOut = *pVarIn; /* Shallow copy the value, and invert it if needed */
3527
3528 #define ABS_CASE(typ,min) \
3529 case VT_##typ: if (V_##typ(pVarIn) == min) hRet = DISP_E_OVERFLOW; \
3530 else if (V_##typ(pVarIn) < 0) V_##typ(pVarOut) = -V_##typ(pVarIn); \
3531 break
3532
3533 switch (V_VT(pVarIn))
3534 {
3535 ABS_CASE(I1,I1_MIN);
3536 case VT_BOOL:
3537 V_VT(pVarOut) = VT_I2;
3538 /* BOOL->I2, Fall through ... */
3539 ABS_CASE(I2,I2_MIN);
3540 case VT_INT:
3541 ABS_CASE(I4,I4_MIN);
3542 ABS_CASE(I8,I8_MIN);
3543 ABS_CASE(R4,R4_MIN);
3544 case VT_BSTR:
3545 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
3546 if (FAILED(hRet))
3547 break;
3548 V_VT(pVarOut) = VT_R8;
3549 pVarIn = &varIn;
3550 /* Fall through ... */
3551 case VT_DATE:
3552 ABS_CASE(R8,R8_MIN);
3553 case VT_CY:
3554 hRet = VarCyAbs(V_CY(pVarIn), & V_CY(pVarOut));
3555 break;
3556 case VT_DECIMAL:
3557 DEC_SIGN(&V_DECIMAL(pVarOut)) &= ~DECIMAL_NEG;
3558 break;
3559 case VT_UI1:
3560 case VT_UI2:
3561 case VT_UINT:
3562 case VT_UI4:
3563 case VT_UI8:
3564 /* No-Op */
3565 break;
3566 case VT_EMPTY:
3567 V_VT(pVarOut) = VT_I2;
3568 case VT_NULL:
3569 V_I2(pVarOut) = 0;
3570 break;
3571 default:
3572 hRet = DISP_E_BADVARTYPE;
3573 }
3574
3575 return hRet;
3576 }
3577
3578 /**********************************************************************
3579 * VarFix [OLEAUT32.169]
3580 *
3581 * Truncate a variants value to a whole number.
3582 *
3583 * PARAMS
3584 * pVarIn [I] Source variant
3585 * pVarOut [O] Destination for converted value
3586 *
3587 * RETURNS
3588 * Success: S_OK. pVarOut contains the converted value.
3589 * Failure: An HRESULT error code indicating the error.
3590 *
3591 * NOTES
3592 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3593 * according to the following table:
3594 *| Input Type Output Type
3595 *| ---------- -----------
3596 *| VT_BOOL VT_I2
3597 *| VT_EMPTY VT_I2
3598 *| VT_BSTR VT_R8
3599 *| All Others Unchanged
3600 * - The difference between this function and VarInt() is that VarInt() rounds
3601 * negative numbers away from 0, while this function rounds them towards zero.
3602 */
3603 HRESULT WINAPI VarFix(LPVARIANT pVarIn, LPVARIANT pVarOut)
3604 {
3605 HRESULT hRet = S_OK;
3606
3607 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3608 debugstr_VF(pVarIn), pVarOut);
3609
3610 V_VT(pVarOut) = V_VT(pVarIn);
3611
3612 switch (V_VT(pVarIn))
3613 {
3614 case VT_UI1:
3615 V_UI1(pVarOut) = V_UI1(pVarIn);
3616 break;
3617 case VT_BOOL:
3618 V_VT(pVarOut) = VT_I2;
3619 /* Fall through */
3620 case VT_I2:
3621 V_I2(pVarOut) = V_I2(pVarIn);
3622 break;
3623 case VT_I4:
3624 V_I4(pVarOut) = V_I4(pVarIn);
3625 break;
3626 case VT_I8:
3627 V_I8(pVarOut) = V_I8(pVarIn);
3628 break;
3629 case VT_R4:
3630 if (V_R4(pVarIn) < 0.0f)
3631 V_R4(pVarOut) = (float)ceil(V_R4(pVarIn));
3632 else
3633 V_R4(pVarOut) = (float)floor(V_R4(pVarIn));
3634 break;
3635 case VT_BSTR:
3636 V_VT(pVarOut) = VT_R8;
3637 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
3638 pVarIn = pVarOut;
3639 /* Fall through */
3640 case VT_DATE:
3641 case VT_R8:
3642 if (V_R8(pVarIn) < 0.0)
3643 V_R8(pVarOut) = ceil(V_R8(pVarIn));
3644 else
3645 V_R8(pVarOut) = floor(V_R8(pVarIn));
3646 break;
3647 case VT_CY:
3648 hRet = VarCyFix(V_CY(pVarIn), &V_CY(pVarOut));
3649 break;
3650 case VT_DECIMAL:
3651 hRet = VarDecFix(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
3652 break;
3653 case VT_EMPTY:
3654 V_VT(pVarOut) = VT_I2;
3655 V_I2(pVarOut) = 0;
3656 break;
3657 case VT_NULL:
3658 /* No-Op */
3659 break;
3660 default:
3661 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
3662 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
3663 hRet = DISP_E_BADVARTYPE;
3664 else
3665 hRet = DISP_E_TYPEMISMATCH;
3666 }
3667 if (FAILED(hRet))
3668 V_VT(pVarOut) = VT_EMPTY;
3669
3670 return hRet;
3671 }
3672
3673 /**********************************************************************
3674 * VarInt [OLEAUT32.172]
3675 *
3676 * Truncate a variants value to a whole number.
3677 *
3678 * PARAMS
3679 * pVarIn [I] Source variant
3680 * pVarOut [O] Destination for converted value
3681 *
3682 * RETURNS
3683 * Success: S_OK. pVarOut contains the converted value.
3684 * Failure: An HRESULT error code indicating the error.
3685 *
3686 * NOTES
3687 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3688 * according to the following table:
3689 *| Input Type Output Type
3690 *| ---------- -----------
3691 *| VT_BOOL VT_I2
3692 *| VT_EMPTY VT_I2
3693 *| VT_BSTR VT_R8
3694 *| All Others Unchanged
3695 * - The difference between this function and VarFix() is that VarFix() rounds
3696 * negative numbers towards 0, while this function rounds them away from zero.
3697 */
3698 HRESULT WINAPI VarInt(LPVARIANT pVarIn, LPVARIANT pVarOut)
3699 {
3700 HRESULT hRet = S_OK;
3701
3702 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3703 debugstr_VF(pVarIn), pVarOut);
3704
3705 V_VT(pVarOut) = V_VT(pVarIn);
3706
3707 switch (V_VT(pVarIn))
3708 {
3709 case VT_R4:
3710 V_R4(pVarOut) = (float)floor(V_R4(pVarIn));
3711 break;
3712 case VT_BSTR:
3713 V_VT(pVarOut) = VT_R8;
3714 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
3715 pVarIn = pVarOut;
3716 /* Fall through */
3717 case VT_DATE:
3718 case VT_R8:
3719 V_R8(pVarOut) = floor(V_R8(pVarIn));
3720 break;
3721 case VT_CY:
3722 hRet = VarCyInt(V_CY(pVarIn), &V_CY(pVarOut));
3723 break;
3724 case VT_DECIMAL:
3725 hRet = VarDecInt(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
3726 break;
3727 default:
3728 return VarFix(pVarIn, pVarOut);
3729 }
3730
3731 return hRet;
3732 }
3733
3734 /**********************************************************************
3735 * VarXor [OLEAUT32.167]
3736 *
3737 * Perform a logical exclusive-or (XOR) operation on two variants.
3738 *
3739 * PARAMS
3740 * pVarLeft [I] First variant
3741 * pVarRight [I] Variant to XOR with pVarLeft
3742 * pVarOut [O] Destination for XOR result
3743 *
3744 * RETURNS
3745 * Success: S_OK. pVarOut contains the result of the operation with its type
3746 * taken from the table below).
3747 * Failure: An HRESULT error code indicating the error.
3748 *
3749 * NOTES
3750 * - Neither pVarLeft or pVarRight are modified by this function.
3751 * - This function does not process by-reference variants.
3752 * - Input types of VT_BSTR may be numeric strings or boolean text.
3753 * - The type of result stored in pVarOut depends on the types of pVarLeft
3754 * and pVarRight, and will be one of VT_UI1, VT_I2, VT_I4, VT_I8, VT_BOOL,
3755 * or VT_NULL if the function succeeds.
3756 * - Type promotion is inconsistent and as a result certain combinations of
3757 * values will return DISP_E_OVERFLOW even when they could be represented.
3758 * This matches the behaviour of native oleaut32.
3759 */
3760 HRESULT WINAPI VarXor(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
3761 {
3762 VARTYPE vt;
3763 VARIANT varLeft, varRight;
3764 double d;
3765 HRESULT hRet;
3766
3767 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
3768 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
3769 debugstr_VF(pVarRight), pVarOut);
3770
3771 if (V_EXTRA_TYPE(pVarLeft) || V_EXTRA_TYPE(pVarRight) ||
3772 V_VT(pVarLeft) > VT_UINT || V_VT(pVarRight) > VT_UINT ||
3773 V_VT(pVarLeft) == VT_VARIANT || V_VT(pVarRight) == VT_VARIANT ||
3774 V_VT(pVarLeft) == VT_UNKNOWN || V_VT(pVarRight) == VT_UNKNOWN ||
3775 V_VT(pVarLeft) == (VARTYPE)15 || V_VT(pVarRight) == (VARTYPE)15 ||
3776 V_VT(pVarLeft) == VT_ERROR || V_VT(pVarRight) == VT_ERROR)
3777 return DISP_E_BADVARTYPE;
3778
3779 if (V_VT(pVarLeft) == VT_NULL || V_VT(pVarRight) == VT_NULL)
3780 {
3781 /* NULL XOR anything valid is NULL */
3782 V_VT(pVarOut) = VT_NULL;
3783 return S_OK;
3784 }
3785
3786 /* Copy our inputs so we don't disturb anything */
3787 V_VT(&varLeft) = V_VT(&varRight) = VT_EMPTY;
3788
3789 hRet = VariantCopy(&varLeft, pVarLeft);
3790 if (FAILED(hRet))
3791 goto VarXor_Exit;
3792
3793 hRet = VariantCopy(&varRight, pVarRight);
3794 if (FAILED(hRet))
3795 goto VarXor_Exit;
3796
3797 /* Try any strings first as numbers, then as VT_BOOL */
3798 if (V_VT(&varLeft) == VT_BSTR)
3799 {
3800 hRet = VarR8FromStr(V_BSTR(&varLeft), LOCALE_USER_DEFAULT, 0, &d);
3801 hRet = VariantChangeType(&varLeft, &varLeft, VARIANT_LOCALBOOL,
3802 FAILED(hRet) ? VT_BOOL : VT_I4);
3803 if (FAILED(hRet))
3804 goto VarXor_Exit;
3805 }
3806
3807 if (V_VT(&varRight) == VT_BSTR)
3808 {
3809 hRet = VarR8FromStr(V_BSTR(&varRight), LOCALE_USER_DEFAULT, 0, &d);
3810 hRet = VariantChangeType(&varRight, &varRight, VARIANT_LOCALBOOL,
3811 FAILED(hRet) ? VT_BOOL : VT_I4);
3812 if (FAILED(hRet))
3813 goto VarXor_Exit;
3814 }
3815
3816 /* Determine the result type */
3817 if (V_VT(&varLeft) == VT_I8 || V_VT(&varRight) == VT_I8)
3818 {
3819 if (V_VT(pVarLeft) == VT_INT || V_VT(pVarRight) == VT_INT)
3820 return DISP_E_TYPEMISMATCH;
3821 vt = VT_I8;
3822 }
3823 else
3824 {
3825 switch ((V_VT(&varLeft) << 16) | V_VT(&varRight))
3826 {
3827 case (VT_BOOL << 16) | VT_BOOL:
3828 vt = VT_BOOL;
3829 break;
3830 case (VT_UI1 << 16) | VT_UI1:
3831 vt = VT_UI1;
3832 break;
3833 case (VT_EMPTY << 16) | VT_EMPTY:
3834 case (VT_EMPTY << 16) | VT_UI1:
3835 case (VT_EMPTY << 16) | VT_I2:
3836 case (VT_EMPTY << 16) | VT_BOOL:
3837 case (VT_UI1 << 16) | VT_EMPTY:
3838 case (VT_UI1 << 16) | VT_I2:
3839 case (VT_UI1 << 16) | VT_BOOL:
3840 case (VT_I2 << 16) | VT_EMPTY:
3841 case (VT_I2 << 16) | VT_UI1:
3842 case (VT_I2 << 16) | VT_I2:
3843 case (VT_I2 << 16) | VT_BOOL:
3844 case (VT_BOOL << 16) | VT_EMPTY:
3845 case (VT_BOOL << 16) | VT_UI1:
3846 case (VT_BOOL << 16) | VT_I2:
3847 vt = VT_I2;
3848 break;
3849 default:
3850 vt = VT_I4;
3851 break;
3852 }
3853 }
3854
3855 /* VT_UI4 does not overflow */
3856 if (vt != VT_I8)
3857 {
3858 if (V_VT(&varLeft) == VT_UI4)
3859 V_VT(&varLeft) = VT_I4;
3860 if (V_VT(&varRight) == VT_UI4)
3861 V_VT(&varRight) = VT_I4;
3862 }
3863
3864 /* Convert our input copies to the result type */
3865 if (V_VT(&varLeft) != vt)
3866 hRet = VariantChangeType(&varLeft, &varLeft, 0, vt);
3867 if (FAILED(hRet))
3868 goto VarXor_Exit;
3869
3870 if (V_VT(&varRight) != vt)
3871 hRet = VariantChangeType(&varRight, &varRight, 0, vt);
3872 if (FAILED(hRet))
3873 goto VarXor_Exit;
3874
3875 V_VT(pVarOut) = vt;
3876
3877 /* Calculate the result */
3878 switch (vt)
3879 {
3880 case VT_I8:
3881 V_I8(pVarOut) = V_I8(&varLeft) ^ V_I8(&varRight);
3882 break;
3883 case VT_I4:
3884 V_I4(pVarOut) = V_I4(&varLeft) ^ V_I4(&varRight);
3885 break;
3886 case VT_BOOL:
3887 case VT_I2:
3888 V_I2(pVarOut) = V_I2(&varLeft) ^ V_I2(&varRight);
3889 break;
3890 case VT_UI1:
3891 V_UI1(pVarOut) = V_UI1(&varLeft) ^ V_UI1(&varRight);
3892 break;
3893 }
3894
3895 VarXor_Exit:
3896 VariantClear(&varLeft);
3897 VariantClear(&varRight);
3898 return hRet;
3899 }
3900
3901 /**********************************************************************
3902 * VarEqv [OLEAUT32.172]
3903 *
3904 * Determine if two variants contain the same value.
3905 *
3906 * PARAMS
3907 * pVarLeft [I] First variant to compare
3908 * pVarRight [I] Variant to compare to pVarLeft
3909 * pVarOut [O] Destination for comparison result
3910 *
3911 * RETURNS
3912 * Success: S_OK. pVarOut contains the result of the comparison (VARIANT_TRUE
3913 * if equivalent or non-zero otherwise.
3914 * Failure: An HRESULT error code indicating the error.
3915 *
3916 * NOTES
3917 * - This function simply calls VarXor() on pVarLeft and pVarRight and inverts
3918 * the result.
3919 */
3920 HRESULT WINAPI VarEqv(LPVARIANT pVarLeft, LPVARIANT pVarRight, LPVARIANT pVarOut)
3921 {
3922 HRESULT hRet;
3923
3924 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", pVarLeft, debugstr_VT(pVarLeft),
3925 debugstr_VF(pVarLeft), pVarRight, debugstr_VT(pVarRight),
3926 debugstr_VF(pVarRight), pVarOut);
3927
3928 hRet = VarXor(pVarLeft, pVarRight, pVarOut);
3929 if (SUCCEEDED(hRet))
3930 {
3931 if (V_VT(pVarOut) == VT_I8)
3932 V_I8(pVarOut) = ~V_I8(pVarOut);
3933 else
3934 V_UI4(pVarOut) = ~V_UI4(pVarOut);
3935 }
3936 return hRet;
3937 }
3938
3939 /**********************************************************************
3940 * VarNeg [OLEAUT32.173]
3941 *
3942 * Negate the value of a variant.
3943 *
3944 * PARAMS
3945 * pVarIn [I] Source variant
3946 * pVarOut [O] Destination for converted value
3947 *
3948 * RETURNS
3949 * Success: S_OK. pVarOut contains the converted value.
3950 * Failure: An HRESULT error code indicating the error.
3951 *
3952 * NOTES
3953 * - The type of the value stored in pVarOut depends on the type of pVarIn,
3954 * according to the following table:
3955 *| Input Type Output Type
3956 *| ---------- -----------
3957 *| VT_EMPTY VT_I2
3958 *| VT_UI1 VT_I2
3959 *| VT_BOOL VT_I2
3960 *| VT_BSTR VT_R8
3961 *| All Others Unchanged (unless promoted)
3962 * - Where the negated value of a variant does not fit in its base type, the type
3963 * is promoted according to the following table:
3964 *| Input Type Promoted To
3965 *| ---------- -----------
3966 *| VT_I2 VT_I4
3967 *| VT_I4 VT_R8
3968 *| VT_I8 VT_R8
3969 * - The native version of this function returns DISP_E_BADVARTYPE for valid
3970 * variant types that cannot be negated, and returns DISP_E_TYPEMISMATCH
3971 * for types which are not valid. Since this is in contravention of the
3972 * meaning of those error codes and unlikely to be relied on by applications,
3973 * this implementation returns errors consistent with the other high level
3974 * variant math functions.
3975 */
3976 HRESULT WINAPI VarNeg(LPVARIANT pVarIn, LPVARIANT pVarOut)
3977 {
3978 HRESULT hRet = S_OK;
3979
3980 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
3981 debugstr_VF(pVarIn), pVarOut);
3982
3983 V_VT(pVarOut) = V_VT(pVarIn);
3984
3985 switch (V_VT(pVarIn))
3986 {
3987 case VT_UI1:
3988 V_VT(pVarOut) = VT_I2;
3989 V_I2(pVarOut) = -V_UI1(pVarIn);
3990 break;
3991 case VT_BOOL:
3992 V_VT(pVarOut) = VT_I2;
3993 /* Fall through */
3994 case VT_I2:
3995 if (V_I2(pVarIn) == I2_MIN)
3996 {
3997 V_VT(pVarOut) = VT_I4;
3998 V_I4(pVarOut) = -(int)V_I2(pVarIn);
3999 }
4000 else
4001 V_I2(pVarOut) = -V_I2(pVarIn);
4002 break;
4003 case VT_I4:
4004 if (V_I4(pVarIn) == I4_MIN)
4005 {
4006 V_VT(pVarOut) = VT_R8;
4007 V_R8(pVarOut) = -(double)V_I4(pVarIn);
4008 }
4009 else
4010 V_I4(pVarOut) = -V_I4(pVarIn);
4011 break;
4012 case VT_I8:
4013 if (V_I8(pVarIn) == I8_MIN)
4014 {
4015 V_VT(pVarOut) = VT_R8;
4016 hRet = VarR8FromI8(V_I8(pVarIn), &V_R8(pVarOut));
4017 V_R8(pVarOut) *= -1.0;
4018 }
4019 else
4020 V_I8(pVarOut) = -V_I8(pVarIn);
4021 break;
4022 case VT_R4:
4023 V_R4(pVarOut) = -V_R4(pVarIn);
4024 break;
4025 case VT_DATE:
4026 case VT_R8:
4027 V_R8(pVarOut) = -V_R8(pVarIn);
4028 break;
4029 case VT_CY:
4030 hRet = VarCyNeg(V_CY(pVarIn), &V_CY(pVarOut));
4031 break;
4032 case VT_DECIMAL:
4033 hRet = VarDecNeg(&V_DECIMAL(pVarIn), &V_DECIMAL(pVarOut));
4034 break;
4035 case VT_BSTR:
4036 V_VT(pVarOut) = VT_R8;
4037 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(pVarOut));
4038 V_R8(pVarOut) = -V_R8(pVarOut);
4039 break;
4040 case VT_EMPTY:
4041 V_VT(pVarOut) = VT_I2;
4042 V_I2(pVarOut) = 0;
4043 break;
4044 case VT_NULL:
4045 /* No-Op */
4046 break;
4047 default:
4048 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
4049 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
4050 hRet = DISP_E_BADVARTYPE;
4051 else
4052 hRet = DISP_E_TYPEMISMATCH;
4053 }
4054 if (FAILED(hRet))
4055 V_VT(pVarOut) = VT_EMPTY;
4056
4057 return hRet;
4058 }
4059
4060 /**********************************************************************
4061 * VarNot [OLEAUT32.174]
4062 *
4063 * Perform a not operation on a variant.
4064 *
4065 * PARAMS
4066 * pVarIn [I] Source variant
4067 * pVarOut [O] Destination for converted value
4068 *
4069 * RETURNS
4070 * Success: S_OK. pVarOut contains the converted value.
4071 * Failure: An HRESULT error code indicating the error.
4072 *
4073 * NOTES
4074 * - Strictly speaking, this function performs a bitwise ones complement
4075 * on the variants value (after possibly converting to VT_I4, see below).
4076 * This only behaves like a boolean not operation if the value in
4077 * pVarIn is either VARIANT_TRUE or VARIANT_FALSE and the type is signed.
4078 * - To perform a genuine not operation, convert the variant to a VT_BOOL
4079 * before calling this function.
4080 * - This function does not process by-reference variants.
4081 * - The type of the value stored in pVarOut depends on the type of pVarIn,
4082 * according to the following table:
4083 *| Input Type Output Type
4084 *| ---------- -----------
4085 *| VT_EMPTY VT_I2
4086 *| VT_R4 VT_I4
4087 *| VT_R8 VT_I4
4088 *| VT_BSTR VT_I4
4089 *| VT_DECIMAL VT_I4
4090 *| VT_CY VT_I4
4091 *| (All others) Unchanged
4092 */
4093 HRESULT WINAPI VarNot(LPVARIANT pVarIn, LPVARIANT pVarOut)
4094 {
4095 VARIANT varIn;
4096 HRESULT hRet = S_OK;
4097
4098 TRACE("(%p->(%s%s),%p)\n", pVarIn, debugstr_VT(pVarIn),
4099 debugstr_VF(pVarIn), pVarOut);
4100
4101 V_VT(pVarOut) = V_VT(pVarIn);
4102
4103 switch (V_VT(pVarIn))
4104 {
4105 case VT_I1:
4106 V_I4(pVarOut) = ~V_I1(pVarIn);
4107 V_VT(pVarOut) = VT_I4;
4108 break;
4109 case VT_UI1: V_UI1(pVarOut) = ~V_UI1(pVarIn); break;
4110 case VT_BOOL:
4111 case VT_I2: V_I2(pVarOut) = ~V_I2(pVarIn); break;
4112 case VT_UI2:
4113 V_I4(pVarOut) = ~V_UI2(pVarIn);
4114 V_VT(pVarOut) = VT_I4;
4115 break;
4116 case VT_DECIMAL:
4117 hRet = VarI4FromDec(&V_DECIMAL(pVarIn), &V_I4(&varIn));
4118 if (FAILED(hRet))
4119 break;
4120 pVarIn = &varIn;
4121 /* Fall through ... */
4122 case VT_INT:
4123 V_VT(pVarOut) = VT_I4;
4124 /* Fall through ... */
4125 case VT_I4: V_I4(pVarOut) = ~V_I4(pVarIn); break;
4126 case VT_UINT:
4127 case VT_UI4:
4128 V_I4(pVarOut) = ~V_UI4(pVarIn);
4129 V_VT(pVarOut) = VT_I4;
4130 break;
4131 case VT_I8: V_I8(pVarOut) = ~V_I8(pVarIn); break;
4132 case VT_UI8:
4133 V_I4(pVarOut) = ~V_UI8(pVarIn);
4134 V_VT(pVarOut) = VT_I4;
4135 break;
4136 case VT_R4:
4137 hRet = VarI4FromR4(V_R4(pVarIn), &V_I4(pVarOut));
4138 V_I4(pVarOut) = ~V_I4(pVarOut);
4139 V_VT(pVarOut) = VT_I4;
4140 break;
4141 case VT_BSTR:
4142 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
4143 if (FAILED(hRet))
4144 break;
4145 pVarIn = &varIn;
4146 /* Fall through ... */
4147 case VT_DATE:
4148 case VT_R8:
4149 hRet = VarI4FromR8(V_R8(pVarIn), &V_I4(pVarOut));
4150 V_I4(pVarOut) = ~V_I4(pVarOut);
4151 V_VT(pVarOut) = VT_I4;
4152 break;
4153 case VT_CY:
4154 hRet = VarI4FromCy(V_CY(pVarIn), &V_I4(pVarOut));
4155 V_I4(pVarOut) = ~V_I4(pVarOut);
4156 V_VT(pVarOut) = VT_I4;
4157 break;
4158 case VT_EMPTY:
4159 V_I2(pVarOut) = ~0;
4160 V_VT(pVarOut) = VT_I2;
4161 break;
4162 case VT_NULL:
4163 /* No-Op */
4164 break;
4165 default:
4166 if (V_TYPE(pVarIn) == VT_CLSID || /* VT_CLSID is a special case */
4167 FAILED(VARIANT_ValidateType(V_VT(pVarIn))))
4168 hRet = DISP_E_BADVARTYPE;
4169 else
4170 hRet = DISP_E_TYPEMISMATCH;
4171 }
4172 if (FAILED(hRet))
4173 V_VT(pVarOut) = VT_EMPTY;
4174
4175 return hRet;
4176 }
4177
4178 /**********************************************************************
4179 * VarRound [OLEAUT32.175]
4180 *
4181 * Perform a round operation on a variant.
4182 *
4183 * PARAMS
4184 * pVarIn [I] Source variant
4185 * deci [I] Number of decimals to round to
4186 * pVarOut [O] Destination for converted value
4187 *
4188 * RETURNS
4189 * Success: S_OK. pVarOut contains the converted value.
4190 * Failure: An HRESULT error code indicating the error.
4191 *
4192 * NOTES
4193 * - Floating point values are rounded to the desired number of decimals.
4194 * - Some integer types are just copied to the return variable.
4195 * - Some other integer types are not handled and fail.
4196 */
4197 HRESULT WINAPI VarRound(LPVARIANT pVarIn, int deci, LPVARIANT pVarOut)
4198 {
4199 VARIANT varIn;
4200 HRESULT hRet = S_OK;
4201 float factor;
4202
4203 TRACE("(%p->(%s%s),%d)\n", pVarIn, debugstr_VT(pVarIn), debugstr_VF(pVarIn), deci);
4204
4205 switch (V_VT(pVarIn))
4206 {
4207 /* cases that fail on windows */
4208 case VT_I1:
4209 case VT_I8:
4210 case VT_UI2:
4211 case VT_UI4:
4212 hRet = DISP_E_BADVARTYPE;
4213 break;
4214
4215 /* cases just copying in to out */
4216 case VT_UI1:
4217 V_VT(pVarOut) = V_VT(pVarIn);
4218 V_UI1(pVarOut) = V_UI1(pVarIn);
4219 break;
4220 case VT_I2:
4221 V_VT(pVarOut) = V_VT(pVarIn);
4222 V_I2(pVarOut) = V_I2(pVarIn);
4223 break;
4224 case VT_I4:
4225 V_VT(pVarOut) = V_VT(pVarIn);
4226 V_I4(pVarOut) = V_I4(pVarIn);
4227 break;
4228 case VT_NULL:
4229 V_VT(pVarOut) = V_VT(pVarIn);
4230 /* value unchanged */
4231 break;
4232
4233 /* cases that change type */
4234 case VT_EMPTY:
4235 V_VT(pVarOut) = VT_I2;
4236 V_I2(pVarOut) = 0;
4237 break;
4238 case VT_BOOL:
4239 V_VT(pVarOut) = VT_I2;
4240 V_I2(pVarOut) = V_BOOL(pVarIn);
4241 break;
4242 case VT_BSTR:
4243 hRet = VarR8FromStr(V_BSTR(pVarIn), LOCALE_USER_DEFAULT, 0, &V_R8(&varIn));
4244 if (FAILED(hRet))
4245 break;
4246 V_VT(&varIn)=VT_R8;
4247 pVarIn = &varIn;
4248 /* Fall through ... */
4249
4250 /* cases we need to do math */
4251 case VT_R8:
4252 if (V_R8(pVarIn)>0) {
4253 V_R8(pVarOut)=floor(V_R8(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4254 } else {
4255 V_R8(pVarOut)=ceil(V_R8(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4256 }
4257 V_VT(pVarOut) = V_VT(pVarIn);
4258 break;
4259 case VT_R4:
4260 if (V_R4(pVarIn)>0) {
4261 V_R4(pVarOut)=floor(V_R4(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4262 } else {
4263 V_R4(pVarOut)=ceil(V_R4(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4264 }
4265 V_VT(pVarOut) = V_VT(pVarIn);
4266 break;
4267 case VT_DATE:
4268 if (V_DATE(pVarIn)>0) {
4269 V_DATE(pVarOut)=floor(V_DATE(pVarIn)*pow(10, deci)+0.5)/pow(10, deci);
4270 } else {
4271 V_DATE(pVarOut)=ceil(V_DATE(pVarIn)*pow(10, deci)-0.5)/pow(10, deci);
4272 }
4273 V_VT(pVarOut) = V_VT(pVarIn);
4274 break;
4275 case VT_CY:
4276 if (deci>3)
4277 factor=1;
4278 else
4279 factor=pow(10, 4-deci);
4280
4281 if (V_CY(pVarIn).int64>0) {
4282 V_CY(pVarOut).int64=floor(V_CY(pVarIn).int64/factor)*factor;
4283 } else {
4284 V_CY(pVarOut).int64=ceil(V_CY(pVarIn).int64/factor)*factor;
4285 }
4286 V_VT(pVarOut) = V_VT(pVarIn);
4287 break;
4288
4289 /* cases we don't know yet */
4290 default:
4291 FIXME("unimplemented part, V_VT(pVarIn) == 0x%X, deci == %d\n",
4292 V_VT(pVarIn) & VT_TYPEMASK, deci);
4293 hRet = DISP_E_BADVARTYPE;
4294 }
4295
4296 if (FAILED(hRet))
4297 V_VT(pVarOut) = VT_EMPTY;
4298
4299 TRACE("returning 0x%08lx (%s%s),%f\n", hRet, debugstr_VT(pVarOut),
4300 debugstr_VF(pVarOut), (V_VT(pVarOut) == VT_R4) ? V_R4(pVarOut) :
4301 (V_VT(pVarOut) == VT_R8) ? V_R8(pVarOut) : 0);
4302
4303 return hRet;
4304 }
4305
4306 /**********************************************************************
4307 * VarIdiv [OLEAUT32.153]
4308 *
4309 * Converts input variants to integers and divides them.
4310 *
4311 * PARAMS
4312 * left [I] Left hand variant
4313 * right [I] Right hand variant
4314 * result [O] Destination for quotient
4315 *
4316 * RETURNS
4317 * Success: S_OK. result contains the quotient.
4318 * Failure: An HRESULT error code indicating the error.
4319 *
4320 * NOTES
4321 * If either expression is null, null is returned, as per MSDN
4322 */
4323 HRESULT WINAPI VarIdiv(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4324 {
4325 VARIANT lv, rv;
4326 HRESULT hr;
4327
4328 VariantInit(&lv);
4329 VariantInit(&rv);
4330
4331 if ((V_VT(left) == VT_NULL) || (V_VT(right) == VT_NULL)) {
4332 hr = VariantChangeType(result, result, 0, VT_NULL);
4333 if (FAILED(hr)) {
4334 /* This should never happen */
4335 FIXME("Failed to convert return value to VT_NULL.\n");
4336 return hr;
4337 }
4338 return S_OK;
4339 }
4340
4341 hr = VariantChangeType(&lv, left, 0, VT_I4);
4342 if (FAILED(hr)) {
4343 return hr;
4344 }
4345 hr = VariantChangeType(&rv, right, 0, VT_I4);
4346 if (FAILED(hr)) {
4347 return hr;
4348 }
4349
4350 hr = VarDiv(&lv, &rv, result);
4351 return hr;
4352 }
4353
4354
4355 /**********************************************************************
4356 * VarMod [OLEAUT32.155]
4357 *
4358 * Perform the modulus operation of the right hand variant on the left
4359 *
4360 * PARAMS
4361 * left [I] Left hand variant
4362 * right [I] Right hand variant
4363 * result [O] Destination for converted value
4364 *
4365 * RETURNS
4366 * Success: S_OK. result contains the remainder.
4367 * Failure: An HRESULT error code indicating the error.
4368 *
4369 * NOTE:
4370 * If an error occurs the type of result will be modified but the value will not be.
4371 * Doesn't support arrays or any special flags yet.
4372 */
4373 HRESULT WINAPI VarMod(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4374 {
4375 BOOL lOk = TRUE;
4376 BOOL rOk = TRUE;
4377 HRESULT rc = E_FAIL;
4378 int resT = 0;
4379 VARIANT lv,rv;
4380
4381 VariantInit(&lv);
4382 VariantInit(&rv);
4383
4384 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left),
4385 debugstr_VF(left), right, debugstr_VT(right), debugstr_VF(right), result);
4386
4387 /* check for invalid inputs */
4388 lOk = TRUE;
4389 switch (V_VT(left) & VT_TYPEMASK) {
4390 case VT_BOOL :
4391 case VT_I1 :
4392 case VT_I2 :
4393 case VT_I4 :
4394 case VT_I8 :
4395 case VT_INT :
4396 case VT_UI1 :
4397 case VT_UI2 :
4398 case VT_UI4 :
4399 case VT_UI8 :
4400 case VT_UINT :
4401 case VT_R4 :
4402 case VT_R8 :
4403 case VT_CY :
4404 case VT_EMPTY:
4405 case VT_DATE :
4406 case VT_BSTR :
4407 break;
4408 case VT_VARIANT:
4409 case VT_UNKNOWN:
4410 V_VT(result) = VT_EMPTY;
4411 return DISP_E_TYPEMISMATCH;
4412 case VT_DECIMAL:
4413 V_VT(result) = VT_EMPTY;
4414 return DISP_E_OVERFLOW;
4415 case VT_ERROR:
4416 return DISP_E_TYPEMISMATCH;
4417 case VT_RECORD:
4418 V_VT(result) = VT_EMPTY;
4419 return DISP_E_TYPEMISMATCH;
4420 case VT_NULL:
4421 break;
4422 default:
4423 V_VT(result) = VT_EMPTY;
4424 return DISP_E_BADVARTYPE;
4425 }
4426
4427
4428 rOk = TRUE;
4429 switch (V_VT(right) & VT_TYPEMASK) {
4430 case VT_BOOL :
4431 case VT_I1 :
4432 case VT_I2 :
4433 case VT_I4 :
4434 case VT_I8 :
4435 if((V_VT(left) == VT_INT) && (V_VT(right) == VT_I8))
4436 {
4437 V_VT(result) = VT_EMPTY;
4438 return DISP_E_TYPEMISMATCH;
4439 }
4440 case VT_INT :
4441 if((V_VT(right) == VT_INT) && (V_VT(left) == VT_I8))
4442 {
4443 V_VT(result) = VT_EMPTY;
4444 return DISP_E_TYPEMISMATCH;
4445 }
4446 case VT_UI1 :
4447 case VT_UI2 :
4448 case VT_UI4 :
4449 case VT_UI8 :
4450 case VT_UINT :
4451 case VT_R4 :
4452 case VT_R8 :
4453 case VT_CY :
4454 if(V_VT(left) == VT_EMPTY)
4455 {
4456 V_VT(result) = VT_I4;
4457 return S_OK;
4458 }
4459 case VT_EMPTY:
4460 case VT_DATE :
4461 case VT_BSTR:
4462 if(V_VT(left) == VT_NULL)
4463 {
4464 V_VT(result) = VT_NULL;
4465 return S_OK;
4466 }
4467 break;
4468
4469 case VT_VOID:
4470 V_VT(result) = VT_EMPTY;
4471 return DISP_E_BADVARTYPE;
4472 case VT_NULL:
4473 if(V_VT(left) == VT_VOID)
4474 {
4475 V_VT(result) = VT_EMPTY;
4476 return DISP_E_BADVARTYPE;
4477 } else if((V_VT(left) == VT_NULL) || (V_VT(left) == VT_EMPTY) || (V_VT(left) == VT_ERROR) ||
4478 lOk)
4479 {
4480 V_VT(result) = VT_NULL;
4481 return S_OK;
4482 } else
4483 {
4484 V_VT(result) = VT_NULL;
4485 return DISP_E_BADVARTYPE;
4486 }
4487 case VT_VARIANT:
4488 case VT_UNKNOWN:
4489 V_VT(result) = VT_EMPTY;
4490 return DISP_E_TYPEMISMATCH;
4491 case VT_DECIMAL:
4492 if(V_VT(left) == VT_ERROR)
4493 {
4494 V_VT(result) = VT_EMPTY;
4495 return DISP_E_TYPEMISMATCH;
4496 } else
4497 {
4498 V_VT(result) = VT_EMPTY;
4499 return DISP_E_OVERFLOW;
4500 }
4501 case VT_ERROR:
4502 return DISP_E_TYPEMISMATCH;
4503 case VT_RECORD:
4504 if((V_VT(left) == 15) || ((V_VT(left) >= 24) && (V_VT(left) <= 35)) || !lOk)
4505 {
4506 V_VT(result) = VT_EMPTY;
4507 return DISP_E_BADVARTYPE;
4508 } else
4509 {
4510 V_VT(result) = VT_EMPTY;
4511 return DISP_E_TYPEMISMATCH;
4512 }
4513 default:
4514 V_VT(result) = VT_EMPTY;
4515 return DISP_E_BADVARTYPE;
4516 }
4517
4518 /* determine the result type */
4519 if((V_VT(left) == VT_I8) || (V_VT(right) == VT_I8)) resT = VT_I8;
4520 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4521 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_UI1)) resT = VT_UI1;
4522 else if((V_VT(left) == VT_UI1) && (V_VT(right) == VT_I2)) resT = VT_I2;
4523 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4524 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_UI1)) resT = VT_I2;
4525 else if((V_VT(left) == VT_I2) && (V_VT(right) == VT_I2)) resT = VT_I2;
4526 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_BOOL)) resT = VT_I2;
4527 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_UI1)) resT = VT_I2;
4528 else if((V_VT(left) == VT_BOOL) && (V_VT(right) == VT_I2)) resT = VT_I2;
4529 else resT = VT_I4; /* most outputs are I4 */
4530
4531 /* convert to I8 for the modulo */
4532 rc = VariantChangeType(&lv, left, 0, VT_I8);
4533 if(FAILED(rc))
4534 {
4535 FIXME("Could not convert left type %d to %d? rc == 0x%lX\n", V_VT(left), VT_I8, rc);
4536 return rc;
4537 }
4538
4539 rc = VariantChangeType(&rv, right, 0, VT_I8);
4540 if(FAILED(rc))
4541 {
4542 FIXME("Could not convert right type %d to %d? rc == 0x%lX\n", V_VT(right), VT_I8, rc);
4543 return rc;
4544 }
4545
4546 /* if right is zero set VT_EMPTY and return divide by zero */
4547 if(V_I8(&rv) == 0)
4548 {
4549 V_VT(result) = VT_EMPTY;
4550 return DISP_E_DIVBYZERO;
4551 }
4552
4553 /* perform the modulo operation */
4554 V_VT(result) = VT_I8;
4555 V_I8(result) = V_I8(&lv) % V_I8(&rv);
4556
4557 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));
4558
4559 /* convert left and right to the destination type */
4560 rc = VariantChangeType(result, result, 0, resT);
4561 if(FAILED(rc))
4562 {
4563 FIXME("Could not convert 0x%x to %d?\n", V_VT(result), resT);
4564 return rc;
4565 }
4566
4567 return S_OK;
4568 }
4569
4570 /**********************************************************************
4571 * VarPow [OLEAUT32.158]
4572 *
4573 * Computes the power of one variant to another variant.
4574 *
4575 * PARAMS
4576 * left [I] First variant
4577 * right [I] Second variant
4578 * result [O] Result variant
4579 *
4580 * RETURNS
4581 * Success: S_OK.
4582 * Failure: An HRESULT error code indicating the error.
4583 */
4584 HRESULT WINAPI VarPow(LPVARIANT left, LPVARIANT right, LPVARIANT result)
4585 {
4586 HRESULT hr;
4587 VARIANT dl,dr;
4588
4589 TRACE("(%p->(%s%s),%p->(%s%s),%p)\n", left, debugstr_VT(left), debugstr_VF(left),
4590 right, debugstr_VT(right), debugstr_VF(right), result);
4591
4592 hr = VariantChangeType(&dl,left,0,VT_R8);
4593 if (!SUCCEEDED(hr)) {
4594 ERR("Could not change passed left argument to VT_R8, handle it differently.\n");
4595 return E_FAIL;
4596 }
4597 hr = VariantChangeType(&dr,right,0,VT_R8);
4598 if (!SUCCEEDED(hr)) {
4599 ERR("Could not change passed right argument to VT_R8, handle it differently.\n");
4600 return E_FAIL;
4601 }
4602 V_VT(result) = VT_R8;
4603 V_R8(result) = pow(V_R8(&dl),V_R8(&dr));
4604 return S_OK;
4605 }
Windows API implementation