dlls/msvcrt/tests/printf.c

   1 /*
   2  * Conformance tests for *printf functions.
   3  *
   4  * Copyright 2002 Uwe Bonnes
   5  * Copyright 2004 Aneurin Price
   6  * Copyright 2005 Mike McCormack
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 /* With Visual Studio >= 2005,  swprintf() takes an extra parameter unless
  24  * the following macro is defined.
  25  */
  26 #define _CRT_NON_CONFORMING_SWPRINTFS
  27
  28 #include <stdio.h>
  29
  30 #include "wine/test.h"
  31
  32 static void test_sprintf( void )
  33 {
  34     char buffer[100];
  35     const char *format;
  36     double pnumber=789456123;
  37     int x, r;
  38     WCHAR wide[] = { 'w','i','d','e',0};
  39
  40     format = "%+#23.15e";
  41     r = sprintf(buffer,format,pnumber);
  42     todo_wine {
  43     ok(!strcmp(buffer,"+7.894561230000000e+008"),"exponent format incorrect\n");
  44     }
  45     ok( r==23, "return count wrong\n");
  46
  47     format = "%I64d";
  48     r = sprintf(buffer,format,((ULONGLONG)0xffffffff)*0xffffffff);
  49     ok(!strcmp(buffer,"-8589934591"),"Problem with long long\n");
  50     ok( r==11, "return count wrong\n");
  51
  52     format = "%+8I64d";
  53     r = sprintf(buffer,format,(LONGLONG)100);
  54     ok(!strcmp(buffer,"    +100") && r==8,"+8I64d failed: '%s'\n", buffer);
  55
  56     format = "%+.8I64d";
  57     r = sprintf(buffer,format,(LONGLONG)100);
  58     ok(!strcmp(buffer,"+00000100") && r==9,"+.8I64d failed: '%s'\n", buffer);
  59
  60     format = "%+10.8I64d";
  61     r = sprintf(buffer,format,(LONGLONG)100);
  62     ok(!strcmp(buffer," +00000100") && r==10,"+10.8I64d failed: '%s'\n", buffer);
  63     format = "%_1I64d";
  64     r = sprintf(buffer,format,(LONGLONG)100);
  65     ok(!strcmp(buffer,"_1I64d") && r==6,"_1I64d failed\n");
  66
  67     format = "%-1.5I64d";
  68     r = sprintf(buffer,format,(LONGLONG)-100);
  69     ok(!strcmp(buffer,"-00100") && r==6,"-1.5I64d failed: '%s'\n", buffer);
  70
  71     format = "%5I64d";
  72     r = sprintf(buffer,format,(LONGLONG)100);
  73     ok(!strcmp(buffer,"  100") && r==5,"5I64d failed: '%s'\n", buffer);
  74
  75     format = "%5I64d";
  76     r = sprintf(buffer,format,(LONGLONG)-100);
  77     ok(!strcmp(buffer," -100") && r==5,"5I64d failed: '%s'\n", buffer);
  78
  79     format = "%-5I64d";
  80     r = sprintf(buffer,format,(LONGLONG)100);
  81     ok(!strcmp(buffer,"100  ") && r==5,"-5I64d failed: '%s'\n", buffer);
  82
  83     format = "%-5I64d";
  84     r = sprintf(buffer,format,(LONGLONG)-100);
  85     ok(!strcmp(buffer,"-100 ") && r==5,"-5I64d failed: '%s'\n", buffer);
  86
  87     format = "%-.5I64d";
  88     r = sprintf(buffer,format,(LONGLONG)100);
  89     ok(!strcmp(buffer,"00100") && r==5,"-.5I64d failed: '%s'\n", buffer);
  90
  91     format = "%-.5I64d";
  92     r = sprintf(buffer,format,(LONGLONG)-100);
  93     ok(!strcmp(buffer,"-00100") && r==6,"-.5I64d failed: '%s'\n", buffer);
  94
  95     format = "%-8.5I64d";
  96     r = sprintf(buffer,format,(LONGLONG)100);
  97     ok(!strcmp(buffer,"00100   ") && r==8,"-8.5I64d failed: '%s'\n", buffer);
  98
  99     format = "%-8.5I64d";
 100     r = sprintf(buffer,format,(LONGLONG)-100);
 101     ok(!strcmp(buffer,"-00100  ") && r==8,"-8.5I64d failed: '%s'\n", buffer);
 102
 103     format = "%05I64d";
 104     r = sprintf(buffer,format,(LONGLONG)100);
 105     ok(!strcmp(buffer,"00100") && r==5,"05I64d failed: '%s'\n", buffer);
 106
 107     format = "%05I64d";
 108     r = sprintf(buffer,format,(LONGLONG)-100);
 109     ok(!strcmp(buffer,"-0100") && r==5,"05I64d failed: '%s'\n", buffer);
 110
 111     format = "% I64d";
 112     r = sprintf(buffer,format,(LONGLONG)100);
 113     ok(!strcmp(buffer," 100") && r==4,"' I64d' failed: '%s'\n", buffer);
 114
 115     format = "% I64d";
 116     r = sprintf(buffer,format,(LONGLONG)-100);
 117     ok(!strcmp(buffer,"-100") && r==4,"' I64d' failed: '%s'\n", buffer);
 118
 119     format = "% 5I64d";
 120     r = sprintf(buffer,format,(LONGLONG)100);
 121     ok(!strcmp(buffer,"  100") && r==5,"' 5I64d' failed: '%s'\n", buffer);
 122
 123     format = "% 5I64d";
 124     r = sprintf(buffer,format,(LONGLONG)-100);
 125     ok(!strcmp(buffer," -100") && r==5,"' 5I64d' failed: '%s'\n", buffer);
 126
 127     format = "% .5I64d";
 128     r = sprintf(buffer,format,(LONGLONG)100);
 129     ok(!strcmp(buffer," 00100") && r==6,"' .5I64d' failed: '%s'\n", buffer);
 130
 131     format = "% .5I64d";
 132     r = sprintf(buffer,format,(LONGLONG)-100);
 133     ok(!strcmp(buffer,"-00100") && r==6,"' .5I64d' failed: '%s'\n", buffer);
 134
 135     format = "% 8.5I64d";
 136     r = sprintf(buffer,format,(LONGLONG)100);
 137     ok(!strcmp(buffer,"   00100") && r==8,"' 8.5I64d' failed: '%s'\n", buffer);
 138
 139     format = "% 8.5I64d";
 140     r = sprintf(buffer,format,(LONGLONG)-100);
 141     ok(!strcmp(buffer,"  -00100") && r==8,"' 8.5I64d' failed: '%s'\n", buffer);
 142
 143     format = "%.0I64d";
 144     r = sprintf(buffer,format,(LONGLONG)0);
 145     ok(r==0,".0I64d failed: '%s'\n", buffer);
 146
 147     format = "%#+21.18I64x";
 148     r = sprintf(buffer,format,(LONGLONG)-100);
 149     ok(!strcmp(buffer," 0x00ffffffffffffff9c") && r==21,"#+21.18I64x failed: '%s'\n", buffer);
 150
 151     format = "%#.25I64o";
 152     r = sprintf(buffer,format,(LONGLONG)-100);
 153     ok(!strcmp(buffer,"0001777777777777777777634") && r==25,"#.25I64o failed: '%s'\n", buffer);
 154
 155     format = "%#+24.20I64o";
 156     r = sprintf(buffer,format,(LONGLONG)-100);
 157     ok(!strcmp(buffer," 01777777777777777777634") && r==24,"#+24.20I64o failed: '%s'\n", buffer);
 158
 159     format = "%#+18.21I64X";
 160     r = sprintf(buffer,format,(LONGLONG)-100);
 161     ok(!strcmp(buffer,"0X00000FFFFFFFFFFFFFF9C") && r==23,"#+18.21I64X failed: '%s '\n", buffer);
 162
 163     format = "%#+20.24I64o";
 164     r = sprintf(buffer,format,(LONGLONG)-100);
 165     ok(!strcmp(buffer,"001777777777777777777634") && r==24,"#+20.24I64o failed: '%s'\n", buffer);
 166
 167     format = "%#+25.22I64u";
 168     r = sprintf(buffer,format,(LONGLONG)-1);
 169     ok(!strcmp(buffer,"   0018446744073709551615") && r==25,"#+25.22I64u conversion failed: '%s'\n", buffer);
 170
 171     format = "%#+25.22I64u";
 172     r = sprintf(buffer,format,(LONGLONG)-1);
 173     ok(!strcmp(buffer,"   0018446744073709551615") && r==25,"#+25.22I64u failed: '%s'\n", buffer);
 174
 175     format = "%#+30.25I64u";
 176     r = sprintf(buffer,format,(LONGLONG)-1);
 177     ok(!strcmp(buffer,"     0000018446744073709551615") && r==30,"#+30.25I64u failed: '%s'\n", buffer);
 178
 179     format = "%+#25.22I64d";
 180     r = sprintf(buffer,format,(LONGLONG)-1);
 181     ok(!strcmp(buffer,"  -0000000000000000000001") && r==25,"+#25.22I64d failed: '%s'\n", buffer);
 182
 183     format = "%#-8.5I64o";
 184     r = sprintf(buffer,format,(LONGLONG)100);
 185     ok(!strcmp(buffer,"00144   ") && r==8,"-8.5I64o failed: '%s'\n", buffer);
 186
 187     format = "%#-+ 08.5I64d";
 188     r = sprintf(buffer,format,(LONGLONG)100);
 189     ok(!strcmp(buffer,"+00100  ") && r==8,"'#-+ 08.5I64d failed: '%s'\n", buffer);
 190
 191     format = "%#-+ 08.5I64d";
 192     r = sprintf(buffer,format,(LONGLONG)100);
 193     ok(!strcmp(buffer,"+00100  ") && r==8,"#-+ 08.5I64d failed: '%s'\n", buffer);
 194
 195     format = "%.80I64d";
 196     r = sprintf(buffer,format,(LONGLONG)1);
 197     ok(r==80,"%s format failed\n", format);
 198
 199     format = "% .80I64d";
 200     r = sprintf(buffer,format,(LONGLONG)1);
 201     ok(r==81,"%s format failed\n", format);
 202
 203     format = "% .80d";
 204     r = sprintf(buffer,format,1);
 205     ok(r==81,"%s format failed\n", format);
 206
 207     format = "%lld";
 208     r = sprintf(buffer,format,((ULONGLONG)0xffffffff)*0xffffffff);
 209     ok(!strcmp(buffer, "1"), "Problem with \"ll\" interpretation\n");
 210     ok( r==1, "return count wrong\n");
 211
 212     format = "%I";
 213     r = sprintf(buffer,format,1);
 214     ok(!strcmp(buffer, "I"), "Problem with \"I\" interpretation\n");
 215     ok( r==1, "return count wrong\n");
 216
 217     format = "%I0d";
 218     r = sprintf(buffer,format,1);
 219     ok(!strcmp(buffer,"I0d"),"I0d failed\n");
 220     ok( r==3, "return count wrong\n");
 221
 222     format = "%I32d";
 223     r = sprintf(buffer,format,1);
 224     if (r == 1)
 225     {
 226         ok(!strcmp(buffer,"1"),"I32d failed, got '%s'\n",buffer);
 227     }
 228     else
 229     {
 230         /* Older versions don't grok I32 format */
 231         ok(r == 4 && !strcmp(buffer,"I32d"),"I32d failed, got '%s',%d\n",buffer,r);
 232     }
 233
 234     format = "%I64D";
 235     r = sprintf(buffer,format,(LONGLONG)-1);
 236     ok(!strcmp(buffer,"D"),"I64D failed: %s\n",buffer);
 237     ok( r==1, "return count wrong\n");
 238
 239     format = "% d";
 240     r = sprintf(buffer,format,1);
 241     ok(!strcmp(buffer, " 1"),"Problem with sign place-holder: '%s'\n",buffer);
 242     ok( r==2, "return count wrong\n");
 243
 244     format = "%+ d";
 245     r = sprintf(buffer,format,1);
 246     ok(!strcmp(buffer, "+1"),"Problem with sign flags: '%s'\n",buffer);
 247     ok( r==2, "return count wrong\n");
 248
 249     format = "%S";
 250     r = sprintf(buffer,format,wide);
 251     ok(!strcmp(buffer,"wide"),"Problem with wide string format\n");
 252     ok( r==4, "return count wrong\n");
 253
 254     format = "%04c";
 255     r = sprintf(buffer,format,'1');
 256     ok(!strcmp(buffer,"0001"),"Character not zero-prefixed \"%s\"\n",buffer);
 257     ok( r==4, "return count wrong\n");
 258
 259     format = "%-04c";
 260     r = sprintf(buffer,format,'1');
 261     ok(!strcmp(buffer,"1   "),"Character zero-padded and/or not left-adjusted \"%s\"\n",buffer);
 262     ok( r==4, "return count wrong\n");
 263
 264     format = "%p";
 265     r = sprintf(buffer,format,(void *)57);
 266     ok(!strcmp(buffer,"00000039"),"Pointer formatted incorrectly \"%s\"\n",buffer);
 267     ok( r==8, "return count wrong\n");
 268
 269     format = "%#012p";
 270     r = sprintf(buffer,format,(void *)57);
 271     ok(!strcmp(buffer,"  0X00000039"),"Pointer formatted incorrectly\n");
 272     ok( r==12, "return count wrong\n");
 273
 274     format = "%Fp";
 275     r = sprintf(buffer,format,(void *)57);
 276     ok(!strcmp(buffer,"00000039"),"Pointer formatted incorrectly \"%s\"\n",buffer);
 277     ok( r==8, "return count wrong\n");
 278
 279     format = "%04s";
 280     r = sprintf(buffer,format,"foo");
 281     ok(!strcmp(buffer,"0foo"),"String not zero-prefixed \"%s\"\n",buffer);
 282     ok( r==4, "return count wrong\n");
 283
 284     format = "%.1s";
 285     r = sprintf(buffer,format,"foo");
 286     ok(!strcmp(buffer,"f"),"Precision ignored \"%s\"\n",buffer);
 287     ok( r==1, "return count wrong\n");
 288
 289     format = "%.*s";
 290     r = sprintf(buffer,format,1,"foo");
 291     ok(!strcmp(buffer,"f"),"Precision ignored \"%s\"\n",buffer);
 292     ok( r==1, "return count wrong\n");
 293
 294     format = "%*s";
 295     r = sprintf(buffer,format,-5,"foo");
 296     ok(!strcmp(buffer,"foo  "),"Negative field width ignored \"%s\"\n",buffer);
 297     ok( r==5, "return count wrong\n");
 298
 299     format = "%#-012p";
 300     r = sprintf(buffer,format,(void *)57);
 301     ok(!strcmp(buffer,"0X00000039  "),"Pointer formatted incorrectly\n");
 302     ok( r==12, "return count wrong\n");
 303
 304     format = "hello";
 305     r = sprintf(buffer, format);
 306     ok(!strcmp(buffer,"hello"), "failed\n");
 307     ok( r==5, "return count wrong\n");
 308
 309     format = "%ws";
 310     r = sprintf(buffer, format, wide);
 311     ok(!strcmp(buffer,"wide"), "failed\n");
 312     ok( r==4, "return count wrong\n");
 313
 314     format = "%-10ws";
 315     r = sprintf(buffer, format, wide );
 316     ok(!strcmp(buffer,"wide      "), "failed\n");
 317     ok( r==10, "return count wrong\n");
 318
 319     format = "%10ws";
 320     r = sprintf(buffer, format, wide );
 321     ok(!strcmp(buffer,"      wide"), "failed\n");
 322     ok( r==10, "return count wrong\n");
 323
 324     format = "%#+ -03whlls";
 325     r = sprintf(buffer, format, wide );
 326     ok(!strcmp(buffer,"wide"), "failed\n");
 327     ok( r==4, "return count wrong\n");
 328
 329     format = "%w0s";
 330     r = sprintf(buffer, format, wide );
 331     ok(!strcmp(buffer,"0s"), "failed\n");
 332     ok( r==2, "return count wrong\n");
 333
 334     format = "%w-s";
 335     r = sprintf(buffer, format, wide );
 336     ok(!strcmp(buffer,"-s"), "failed\n");
 337     ok( r==2, "return count wrong\n");
 338
 339     format = "%ls";
 340     r = sprintf(buffer, format, wide );
 341     ok(!strcmp(buffer,"wide"), "failed\n");
 342     ok( r==4, "return count wrong\n");
 343
 344     format = "%Ls";
 345     r = sprintf(buffer, format, "not wide" );
 346     ok(!strcmp(buffer,"not wide"), "failed\n");
 347     ok( r==8, "return count wrong\n");
 348
 349     format = "%b";
 350     r = sprintf(buffer, format);
 351     ok(!strcmp(buffer,"b"), "failed\n");
 352     ok( r==1, "return count wrong\n");
 353
 354     format = "%3c";
 355     r = sprintf(buffer, format,'a');
 356     ok(!strcmp(buffer,"  a"), "failed\n");
 357     ok( r==3, "return count wrong\n");
 358
 359     format = "%3d";
 360     r = sprintf(buffer, format,1234);
 361     ok(!strcmp(buffer,"1234"), "failed\n");
 362     ok( r==4, "return count wrong\n");
 363
 364     format = "%3h";
 365     r = sprintf(buffer, format);
 366     ok(!strcmp(buffer,""), "failed\n");
 367     ok( r==0, "return count wrong\n");
 368
 369     format = "%j%k%m%q%r%t%v%y%z";
 370     r = sprintf(buffer, format);
 371     ok(!strcmp(buffer,"jkmqrtvyz"), "failed\n");
 372     ok( r==9, "return count wrong\n");
 373
 374     format = "asdf%n";
 375     x = 0;
 376     r = sprintf(buffer, format, &x );
 377     ok(x == 4, "should write to x\n");
 378     ok(!strcmp(buffer,"asdf"), "failed\n");
 379     ok( r==4, "return count wrong\n");
 380
 381     format = "%-1d";
 382     r = sprintf(buffer, format,2);
 383     ok(!strcmp(buffer,"2"), "failed\n");
 384     ok( r==1, "return count wrong\n");
 385
 386     format = "%2.4f";
 387     r = sprintf(buffer, format,8.6);
 388     ok(!strcmp(buffer,"8.6000"), "failed\n");
 389     ok( r==6, "return count wrong\n");
 390
 391     format = "%0f";
 392     r = sprintf(buffer, format,0.6);
 393     ok(!strcmp(buffer,"0.600000"), "failed\n");
 394     ok( r==8, "return count wrong\n");
 395
 396     format = "%.0f";
 397     r = sprintf(buffer, format,0.6);
 398     ok(!strcmp(buffer,"1"), "failed\n");
 399     ok( r==1, "return count wrong\n");
 400
 401     todo_wine {
 402     format = "%2.4e";
 403     r = sprintf(buffer, format,8.6);
 404     ok(!strcmp(buffer,"8.6000e+000"), "failed\n");
 405     ok( r==11, "return count wrong\n");
 406     }
 407
 408     format = "%2.4g";
 409     r = sprintf(buffer, format,8.6);
 410     ok(!strcmp(buffer,"8.6"), "failed\n");
 411     ok( r==3, "return count wrong\n");
 412
 413     format = "%-i";
 414     r = sprintf(buffer, format,-1);
 415     ok(!strcmp(buffer,"-1"), "failed\n");
 416     ok( r==2, "return count wrong\n");
 417
 418     format = "%-i";
 419     r = sprintf(buffer, format,1);
 420     ok(!strcmp(buffer,"1"), "failed\n");
 421     ok( r==1, "return count wrong\n");
 422
 423     format = "%+i";
 424     r = sprintf(buffer, format,1);
 425     ok(!strcmp(buffer,"+1"), "failed\n");
 426     ok( r==2, "return count wrong\n");
 427
 428     format = "%o";
 429     r = sprintf(buffer, format,10);
 430     ok(!strcmp(buffer,"12"), "failed\n");
 431     ok( r==2, "return count wrong\n");
 432
 433     format = "%p";
 434     r = sprintf(buffer, format,0);
 435     ok(!strcmp(buffer,"00000000"), "failed\n");
 436     ok( r==8, "return count wrong\n");
 437
 438     format = "%s";
 439     r = sprintf(buffer, format,0);
 440     ok(!strcmp(buffer,"(null)"), "failed\n");
 441     ok( r==6, "return count wrong\n");
 442
 443     format = "%s";
 444     r = sprintf(buffer, format,"%%%%");
 445     ok(!strcmp(buffer,"%%%%"), "failed\n");
 446     ok( r==4, "return count wrong\n");
 447
 448     format = "%u";
 449     r = sprintf(buffer, format,-1);
 450     ok(!strcmp(buffer,"4294967295"), "failed\n");
 451     ok( r==10, "return count wrong\n");
 452
 453     format = "%w";
 454     r = sprintf(buffer, format,-1);
 455     ok(!strcmp(buffer,""), "failed\n");
 456     ok( r==0, "return count wrong\n");
 457
 458     format = "%h";
 459     r = sprintf(buffer, format,-1);
 460     ok(!strcmp(buffer,""), "failed\n");
 461     ok( r==0, "return count wrong\n");
 462
 463     format = "%z";
 464     r = sprintf(buffer, format,-1);
 465     ok(!strcmp(buffer,"z"), "failed\n");
 466     ok( r==1, "return count wrong\n");
 467
 468     format = "%j";
 469     r = sprintf(buffer, format,-1);
 470     ok(!strcmp(buffer,"j"), "failed\n");
 471     ok( r==1, "return count wrong\n");
 472
 473     format = "%F";
 474     r = sprintf(buffer, format,-1);
 475     ok(!strcmp(buffer,""), "failed\n");
 476     ok( r==0, "return count wrong\n");
 477
 478     format = "%H";
 479     r = sprintf(buffer, format,-1);
 480     ok(!strcmp(buffer,"H"), "failed\n");
 481     ok( r==1, "return count wrong\n");
 482
 483     format = "x%cx";
 484     r = sprintf(buffer, format, 0x100+'X');
 485     ok(!strcmp(buffer,"xXx"), "failed\n");
 486     ok( r==3, "return count wrong\n");
 487
 488     format = "%%0";
 489     r = sprintf(buffer, format);
 490     ok(!strcmp(buffer,"%0"), "failed: \"%s\"\n", buffer);
 491     ok( r==2, "return count wrong\n");
 492 }
 493
 494 static void test_swprintf( void )
 495 {
 496     wchar_t buffer[100];
 497     const wchar_t I64d[] = {'%','I','6','4','d',0};
 498     double pnumber=789456123;
 499     const wchar_t TwentyThreePoint15e[]= {'%','+','#','2','3','.','1','5','e',0};
 500     const wchar_t e008[] = {'e','+','0','0','8',0};
 501     const wchar_t string_w[] = {'s','t','r','i','n','g',0};
 502     const char string[] = "string";
 503     const wchar_t S[]={'%','S',0};
 504     const wchar_t hs[] = {'%', 'h', 's', 0};
 505
 506     swprintf(buffer,TwentyThreePoint15e,pnumber);
 507     todo_wine
 508       {
 509         ok(wcsstr(buffer,e008) != 0,"Sprintf different\n");
 510       }
 511     swprintf(buffer,I64d,((ULONGLONG)0xffffffff)*0xffffffff);
 512       ok(wcslen(buffer) == 11,"Problem with long long\n");
 513     swprintf(buffer,S,string);
 514       ok(wcslen(buffer) == 6,"Problem with \"%%S\" interpretation\n");
 515    swprintf(buffer, hs, string);
 516    ok( wcscmp(string_w,buffer) == 0, "swprintf failed with %%hs\n");
 517 }
 518
 519 static void test_fwprintf( void )
 520 {
 521     const char *string="not a wide string";
 522     todo_wine
 523       {
 524         ok(fwprintf(fopen("nul","r+"),(const wchar_t *)string) == -1,
 525            "Non-wide string should not be printed by fwprintf\n");
 526       }
 527 }
 528
 529 static void test_snprintf (void)
 530 {
 531     struct snprintf_test {
 532         const char *format;
 533         int expected;
 534     };
 535     /* Pre-2.1 libc behaviour, not C99 compliant. */
 536     const struct snprintf_test tests[] = {{"short", 5},
 537                                           {"justfit", 7},
 538                                           {"justfits", 8},
 539                                           {"muchlonger", -1}};
 540     char buffer[8];
 541     const int bufsiz = sizeof buffer;
 542     unsigned int i;
 543
 544     for (i = 0; i < sizeof tests / sizeof tests[0]; i++) {
 545         const char *fmt  = tests[i].format;
 546         const int expect = tests[i].expected;
 547         const int n      = _snprintf (buffer, bufsiz, fmt);
 548         const int valid  = n < 0 ? bufsiz : (n == bufsiz ? n : n+1);
 549
 550         ok (n == expect, "\"%s\": expected %d, returned %d\n",
 551             fmt, expect, n);
 552         ok (!memcmp (fmt, buffer, valid),
 553             "\"%s\": rendered \"%.*s\"\n", fmt, valid, buffer);
 554     };
 555 }
 556
 557 static void test_fcvt(void)
 558 {
 559     char *str;
 560     int dec=100, sign=100;
 561
 562     /* Numbers less than 1.0 with different precisions */
 563     str = _fcvt(0.0001, 1, &dec, &sign );
 564     ok( 0 == strcmp(str,""), "bad return '%s'\n", str);
 565     ok( -3 == dec, "dec wrong %d\n", dec);
 566     ok( 0 == sign, "sign wrong\n");
 567
 568     str = _fcvt(0.0001, -10, &dec, &sign );
 569     ok( 0 == strcmp(str,""), "bad return '%s'\n", str);
 570     ok( -3 == dec, "dec wrong %d\n", dec);
 571     ok( 0 == sign, "sign wrong\n");
 572
 573     str = _fcvt(0.0001, 10, &dec, &sign );
 574     ok( 0 == strcmp(str,"1000000"), "bad return '%s'\n", str);
 575     ok( -3 == dec, "dec wrong %d\n", dec);
 576     ok( 0 == sign, "sign wrong\n");
 577
 578     /* Basic sign test */
 579     str = _fcvt(-111.0001, 5, &dec, &sign );
 580     ok( 0 == strcmp(str,"11100010"), "bad return '%s'\n", str);
 581     ok( 3 == dec, "dec wrong %d\n", dec);
 582     ok( 1 == sign, "sign wrong\n");
 583
 584     str = _fcvt(111.0001, 5, &dec, &sign );
 585     ok( 0 == strcmp(str,"11100010"), "bad return '%s'\n", str);
 586     ok( 3 == dec, "dec wrong\n");
 587     ok( 0 == sign, "sign wrong\n");
 588
 589     /* 0.0 with different precisions */
 590     str = _fcvt(0.0, 5, &dec, &sign );
 591     ok( 0 == strcmp(str,"00000"), "bad return '%s'\n", str);
 592     ok( 0 == dec, "dec wrong %d\n", dec);
 593     ok( 0 == sign, "sign wrong\n");
 594
 595     str = _fcvt(0.0, 0, &dec, &sign );
 596     ok( 0 == strcmp(str,""), "bad return '%s'\n", str);
 597     ok( 0 == dec, "dec wrong %d\n", dec);
 598     ok( 0 == sign, "sign wrong\n");
 599
 600     str = _fcvt(0.0, -1, &dec, &sign );
 601     ok( 0 == strcmp(str,""), "bad return '%s'\n", str);
 602     ok( 0 == dec, "dec wrong %d\n", dec);
 603     ok( 0 == sign, "sign wrong\n");
 604
 605     /* Numbers > 1.0 with 0 or -ve precision */
 606     str = _fcvt(-123.0001, 0, &dec, &sign );
 607     ok( 0 == strcmp(str,"123"), "bad return '%s'\n", str);
 608     ok( 3 == dec, "dec wrong %d\n", dec);
 609     ok( 1 == sign, "sign wrong\n");
 610
 611     str = _fcvt(-123.0001, -1, &dec, &sign );
 612     ok( 0 == strcmp(str,"12"), "bad return '%s'\n", str);
 613     ok( 3 == dec, "dec wrong %d\n", dec);
 614     ok( 1 == sign, "sign wrong\n");
 615
 616     str = _fcvt(-123.0001, -2, &dec, &sign );
 617     ok( 0 == strcmp(str,"1"), "bad return '%s'\n", str);
 618     ok( 3 == dec, "dec wrong %d\n", dec);
 619     ok( 1 == sign, "sign wrong\n");
 620
 621     str = _fcvt(-123.0001, -3, &dec, &sign );
 622     ok( 0 == strcmp(str,""), "bad return '%s'\n", str);
 623     ok( 3 == dec, "dec wrong %d\n", dec);
 624     ok( 1 == sign, "sign wrong\n");
 625
 626     /* Numbers > 1.0, but with rounding at the point of precision */
 627     str = _fcvt(99.99, 1, &dec, &sign );
 628     ok( 0 == strcmp(str,"1000"), "bad return '%s'\n", str);
 629     ok( 3 == dec, "dec wrong %d\n", dec);
 630     ok( 0 == sign, "sign wrong\n");
 631
 632     /* Numbers < 1.0 where rounding occurs at the point of precision */
 633     str = _fcvt(0.00636, 2, &dec, &sign );
 634     ok( 0 == strcmp(str,"1"), "bad return '%s'\n", str);
 635     ok( -1 == dec, "dec wrong %d\n", dec);
 636     ok( 0 == sign, "sign wrong\n");
 637
 638     str = _fcvt(0.00636, 3, &dec, &sign );
 639     ok( 0 == strcmp(str,"6"), "bad return '%s'\n", str);
 640     ok( -2 == dec, "dec wrong %d\n", dec);
 641     ok( 0 == sign, "sign wrong\n");
 642
 643     str = _fcvt(0.09999999996, 2, &dec, &sign );
 644     ok( 0 == strcmp(str,"10"), "bad return '%s'\n", str);
 645     ok( 0 == dec, "dec wrong %d\n", dec);
 646     ok( 0 == sign, "sign wrong\n");
 647
 648     str = _fcvt(0.6, 0, &dec, &sign );
 649     ok( 0 == strcmp(str,"1"), "bad return '%s'\n", str);
 650     ok( 1 == dec, "dec wrong %d\n", dec);
 651     ok( 0 == sign, "sign wrong\n");
 652 }
 653
 654 START_TEST(printf)
 655 {
 656     test_sprintf();
 657     test_swprintf();
 658     test_fwprintf();
 659     test_snprintf();
 660     test_fcvt();
 661 }