dlls/msvcrt/string.c

   1 /*
   2  * MSVCRT string functions
   3  *
   4  * Copyright 1996,1998 Marcus Meissner
   5  * Copyright 1996 Jukka Iivonen
   6  * Copyright 1997,2000 Uwe Bonnes
   7  * Copyright 2000 Jon Griffiths
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #define _ISOC99_SOURCE
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <math.h>
  31 #include <limits.h>
  32 #include <errno.h>
  33 #include "msvcrt.h"
  34 #include "winnls.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  38
  39 /*********************************************************************
  40  *              _mbsdup (MSVCRT.@)
  41  *              _strdup (MSVCRT.@)
  42  */
  43 char* CDECL MSVCRT__strdup(const char* str)
  44 {
  45     if(str)
  46     {
  47       char * ret = MSVCRT_malloc(strlen(str)+1);
  48       if (ret) strcpy( ret, str );
  49       return ret;
  50     }
  51     else return 0;
  52 }
  53
  54 /*********************************************************************
  55  *              _strlwr_s_l (MSVCRT.@)
  56  */
  57 int CDECL _strlwr_s_l(char *str, MSVCRT_size_t len, MSVCRT__locale_t locale)
  58 {
  59     char *ptr = str;
  60
  61     if (!str || !len)
  62     {
  63         *MSVCRT__errno() = MSVCRT_EINVAL;
  64         return MSVCRT_EINVAL;
  65     }
  66
  67     while (len && *ptr)
  68     {
  69         len--;
  70         ptr++;
  71     }
  72
  73     if (!len)
  74     {
  75         str[0] = '\0';
  76         *MSVCRT__errno() = MSVCRT_EINVAL;
  77         return MSVCRT_EINVAL;
  78     }
  79
  80     while (*str)
  81     {
  82         *str = MSVCRT__tolower_l((unsigned char)*str, locale);
  83         str++;
  84     }
  85
  86     return 0;
  87 }
  88
  89 /*********************************************************************
  90  *              _strlwr_s (MSVCRT.@)
  91  */
  92 int CDECL _strlwr_s(char *str, MSVCRT_size_t len)
  93 {
  94     return _strlwr_s_l(str, len, NULL);
  95 }
  96
  97 /*********************************************************************
  98  *              _strlwr_l (MSVCRT.@)
  99  */
 100 char* CDECL _strlwr_l(char *str, MSVCRT__locale_t locale)
 101 {
 102     _strlwr_s_l(str, -1, locale);
 103     return str;
 104 }
 105
 106 /*********************************************************************
 107  *              _strlwr (MSVCRT.@)
 108  */
 109 char* CDECL MSVCRT__strlwr(char *str)
 110 {
 111     _strlwr_s_l(str, -1, NULL);
 112     return str;
 113 }
 114
 115 /*********************************************************************
 116  *              _strupr_s_l (MSVCRT.@)
 117  */
 118 int CDECL _strupr_s_l(char *str, MSVCRT_size_t len, MSVCRT__locale_t locale)
 119 {
 120     char *ptr = str;
 121
 122     if (!str || !len)
 123     {
 124         *MSVCRT__errno() = MSVCRT_EINVAL;
 125         return MSVCRT_EINVAL;
 126     }
 127
 128     while (len && *ptr)
 129     {
 130         len--;
 131         ptr++;
 132     }
 133
 134     if (!len)
 135     {
 136         str[0] = '\0';
 137         *MSVCRT__errno() = MSVCRT_EINVAL;
 138         return MSVCRT_EINVAL;
 139     }
 140
 141     while (*str)
 142     {
 143         *str = MSVCRT__toupper_l((unsigned char)*str, locale);
 144         str++;
 145     }
 146
 147     return 0;
 148 }
 149
 150 /*********************************************************************
 151  *              _strupr_s (MSVCRT.@)
 152  */
 153 int CDECL _strupr_s(char *str, MSVCRT_size_t len)
 154 {
 155     return _strupr_s_l(str, len, NULL);
 156 }
 157
 158 /*********************************************************************
 159  *              _strupr_l (MSVCRT.@)
 160  */
 161 char* CDECL MSVCRT__strupr_l(char *str, MSVCRT__locale_t locale)
 162 {
 163     _strupr_s_l(str, -1, locale);
 164     return str;
 165 }
 166
 167 /*********************************************************************
 168  *              _strupr (MSVCRT.@)
 169  */
 170 char* CDECL MSVCRT__strupr(char *str)
 171 {
 172     _strupr_s_l(str, -1, NULL);
 173     return str;
 174 }
 175
 176 /*********************************************************************
 177  *              _strnset (MSVCRT.@)
 178  */
 179 char* CDECL MSVCRT__strnset(char* str, int value, MSVCRT_size_t len)
 180 {
 181   if (len > 0 && str)
 182     while (*str && len--)
 183       *str++ = value;
 184   return str;
 185 }
 186
 187 /*********************************************************************
 188  *              _strrev (MSVCRT.@)
 189  */
 190 char* CDECL MSVCRT__strrev(char* str)
 191 {
 192   char * p1;
 193   char * p2;
 194
 195   if (str && *str)
 196     for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
 197     {
 198       *p1 ^= *p2;
 199       *p2 ^= *p1;
 200       *p1 ^= *p2;
 201     }
 202
 203   return str;
 204 }
 205
 206 /*********************************************************************
 207  *              _strset (MSVCRT.@)
 208  */
 209 char* CDECL _strset(char* str, int value)
 210 {
 211   char *ptr = str;
 212   while (*ptr)
 213     *ptr++ = value;
 214
 215   return str;
 216 }
 217
 218 /*********************************************************************
 219  *              strtok  (MSVCRT.@)
 220  */
 221 char * CDECL MSVCRT_strtok( char *str, const char *delim )
 222 {
 223     thread_data_t *data = msvcrt_get_thread_data();
 224     char *ret;
 225
 226     if (!str)
 227         if (!(str = data->strtok_next)) return NULL;
 228
 229     while (*str && strchr( delim, *str )) str++;
 230     if (!*str) return NULL;
 231     ret = str++;
 232     while (*str && !strchr( delim, *str )) str++;
 233     if (*str) *str++ = 0;
 234     data->strtok_next = str;
 235     return ret;
 236 }
 237
 238 /*********************************************************************
 239  *              strtok_s  (MSVCRT.@)
 240  */
 241 char * CDECL MSVCRT_strtok_s(char *str, const char *delim, char **ctx)
 242 {
 243     if (!MSVCRT_CHECK_PMT(delim != NULL)) return NULL;
 244     if (!MSVCRT_CHECK_PMT(ctx != NULL)) return NULL;
 245     if (!MSVCRT_CHECK_PMT(str != NULL || *ctx != NULL)) return NULL;
 246
 247     if(!str)
 248         str = *ctx;
 249
 250     while(*str && strchr(delim, *str))
 251         str++;
 252     if(!*str)
 253         return NULL;
 254
 255     *ctx = str+1;
 256     while(**ctx && !strchr(delim, **ctx))
 257         (*ctx)++;
 258     if(**ctx)
 259         *(*ctx)++ = 0;
 260
 261     return str;
 262 }
 263
 264 /*********************************************************************
 265  *              _swab (MSVCRT.@)
 266  */
 267 void CDECL MSVCRT__swab(char* src, char* dst, int len)
 268 {
 269   if (len > 1)
 270   {
 271     len = (unsigned)len >> 1;
 272
 273     while (len--) {
 274       char s0 = src[0];
 275       char s1 = src[1];
 276       *dst++ = s1;
 277       *dst++ = s0;
 278       src = src + 2;
 279     }
 280   }
 281 }
 282
 283 static double strtod_helper(const char *str, char **end, MSVCRT__locale_t locale, int *err)
 284 {
 285     MSVCRT_pthreadlocinfo locinfo;
 286     unsigned __int64 d=0, hlp;
 287     unsigned fpcontrol;
 288     int exp=0, sign=1;
 289     const char *p;
 290     double ret;
 291     long double lret=1, expcnt = 10;
 292     BOOL found_digit = FALSE, negexp;
 293
 294     if(err)
 295         *err = 0;
 296     else
 297         if(!MSVCRT_CHECK_PMT(str != NULL)) return 0;
 298
 299     if(!locale)
 300         locinfo = get_locinfo();
 301     else
 302         locinfo = locale->locinfo;
 303
 304     /* FIXME: use *_l functions */
 305     p = str;
 306     while(isspace(*p))
 307         p++;
 308
 309     if(*p == '-') {
 310         sign = -1;
 311         p++;
 312     } else  if(*p == '+')
 313         p++;
 314
 315     while(isdigit(*p)) {
 316         found_digit = TRUE;
 317         hlp = d*10+*(p++)-'0';
 318         if(d>MSVCRT_UI64_MAX/10 || hlp<d) {
 319             exp++;
 320             break;
 321         } else
 322             d = hlp;
 323     }
 324     while(isdigit(*p)) {
 325         exp++;
 326         p++;
 327     }
 328
 329     if(*p == *locinfo->lconv->decimal_point)
 330         p++;
 331
 332     while(isdigit(*p)) {
 333         found_digit = TRUE;
 334         hlp = d*10+*(p++)-'0';
 335         if(d>MSVCRT_UI64_MAX/10 || hlp<d)
 336             break;
 337
 338         d = hlp;
 339         exp--;
 340     }
 341     while(isdigit(*p))
 342         p++;
 343
 344     if(!found_digit) {
 345         if(end)
 346             *end = (char*)str;
 347         return 0.0;
 348     }
 349
 350     if(*p=='e' || *p=='E' || *p=='d' || *p=='D') {
 351         int e=0, s=1;
 352
 353         p++;
 354         if(*p == '-') {
 355             s = -1;
 356             p++;
 357         } else if(*p == '+')
 358             p++;
 359
 360         if(isdigit(*p)) {
 361             while(isdigit(*p)) {
 362                 if(e>INT_MAX/10 || (e=e*10+*p-'0')<0)
 363                     e = INT_MAX;
 364                 p++;
 365             }
 366             e *= s;
 367
 368             if(exp<0 && e<0 && exp+e>=0) exp = INT_MIN;
 369             else if(exp>0 && e>0 && exp+e<0) exp = INT_MAX;
 370             else exp += e;
 371         } else {
 372             if(*p=='-' || *p=='+')
 373                 p--;
 374             p--;
 375         }
 376     }
 377
 378     fpcontrol = _control87(0, 0);
 379     _control87(MSVCRT__EM_DENORMAL|MSVCRT__EM_INVALID|MSVCRT__EM_ZERODIVIDE
 380             |MSVCRT__EM_OVERFLOW|MSVCRT__EM_UNDERFLOW|MSVCRT__EM_INEXACT, 0xffffffff);
 381
 382     negexp = (exp < 0);
 383     if(negexp)
 384         exp = -exp;
 385     while(exp) {
 386         if(exp & 1)
 387             lret *= expcnt;
 388         exp /= 2;
 389         expcnt = expcnt*expcnt;
 390     }
 391     ret = (long double)sign * (negexp ? d/lret : d*lret);
 392
 393     _control87(fpcontrol, 0xffffffff);
 394
 395     if((d && ret==0.0) || isinf(ret)) {
 396         if(err)
 397             *err = MSVCRT_ERANGE;
 398         else
 399             *MSVCRT__errno() = MSVCRT_ERANGE;
 400     }
 401
 402     if(end)
 403         *end = (char*)p;
 404
 405     return ret;
 406 }
 407
 408 /*********************************************************************
 409  *              strtod_l  (MSVCRT.@)
 410  */
 411 double CDECL MSVCRT_strtod_l(const char *str, char **end, MSVCRT__locale_t locale)
 412 {
 413     return strtod_helper(str, end, locale, NULL);
 414 }
 415
 416 /*********************************************************************
 417  *              strtod  (MSVCRT.@)
 418  */
 419 double CDECL MSVCRT_strtod( const char *str, char **end )
 420 {
 421     return MSVCRT_strtod_l( str, end, NULL );
 422 }
 423
 424 /*********************************************************************
 425  *              atof  (MSVCRT.@)
 426  */
 427 double CDECL MSVCRT_atof( const char *str )
 428 {
 429     return MSVCRT_strtod_l(str, NULL, NULL);
 430 }
 431
 432 /*********************************************************************
 433  *              _atof_l  (MSVCRT.@)
 434  */
 435 double CDECL MSVCRT__atof_l( const char *str, MSVCRT__locale_t locale)
 436 {
 437     return MSVCRT_strtod_l(str, NULL, locale);
 438 }
 439
 440 /*********************************************************************
 441  *              _atoflt_l  (MSVCRT.@)
 442  */
 443 int CDECL MSVCRT__atoflt_l( MSVCRT__CRT_FLOAT *value, char *str, MSVCRT__locale_t locale)
 444 {
 445     double d;
 446     int err;
 447
 448     d = strtod_helper(str, NULL, locale, &err);
 449     value->f = d;
 450     if(isinf(value->f))
 451         return MSVCRT__OVERFLOW;
 452     if((d!=0 || err) && value->f>-MSVCRT_FLT_MIN && value->f<MSVCRT_FLT_MIN)
 453         return MSVCRT__UNDERFLOW;
 454     return 0;
 455 }
 456
 457 /*********************************************************************
 458  *              _atodbl_l  (MSVCRT.@)
 459  */
 460 int CDECL MSVCRT__atodbl_l(MSVCRT__CRT_DOUBLE *value, char *str, MSVCRT__locale_t locale)
 461 {
 462     int err;
 463
 464     value->x = strtod_helper(str, NULL, locale, &err);
 465     if(isinf(value->x))
 466         return MSVCRT__OVERFLOW;
 467     if((value->x!=0 || err) && value->x>-MSVCRT_DBL_MIN && value->x<MSVCRT_DBL_MIN)
 468         return MSVCRT__UNDERFLOW;
 469     return 0;
 470 }
 471
 472 /*********************************************************************
 473  *              _atodbl  (MSVCRT.@)
 474  */
 475 int CDECL MSVCRT__atodbl(MSVCRT__CRT_DOUBLE *value, char *str)
 476 {
 477     return MSVCRT__atodbl_l(value, str, NULL);
 478 }
 479
 480 /*********************************************************************
 481  *              _strcoll_l (MSVCRT.@)
 482  */
 483 int CDECL MSVCRT_strcoll_l( const char* str1, const char* str2, MSVCRT__locale_t locale )
 484 {
 485     MSVCRT_pthreadlocinfo locinfo;
 486
 487     if(!locale)
 488         locinfo = get_locinfo();
 489     else
 490         locinfo = locale->locinfo;
 491
 492     return CompareStringA(locinfo->lc_handle[MSVCRT_LC_COLLATE], 0, str1, -1, str2, -1)-CSTR_EQUAL;
 493 }
 494
 495 /*********************************************************************
 496  *              strcoll (MSVCRT.@)
 497  */
 498 int CDECL MSVCRT_strcoll( const char* str1, const char* str2 )
 499 {
 500     return MSVCRT_strcoll_l(str1, str2, NULL);
 501 }
 502
 503 /*********************************************************************
 504  *              _stricoll_l (MSVCRT.@)
 505  */
 506 int CDECL MSVCRT__stricoll_l( const char* str1, const char* str2, MSVCRT__locale_t locale )
 507 {
 508     MSVCRT_pthreadlocinfo locinfo;
 509
 510     if(!locale)
 511         locinfo = get_locinfo();
 512     else
 513         locinfo = locale->locinfo;
 514
 515     return CompareStringA(locinfo->lc_handle[MSVCRT_LC_COLLATE], NORM_IGNORECASE,
 516             str1, -1, str2, -1)-CSTR_EQUAL;
 517 }
 518
 519 /*********************************************************************
 520  *              _stricoll (MSVCRT.@)
 521  */
 522 int CDECL MSVCRT__stricoll( const char* str1, const char* str2 )
 523 {
 524     return MSVCRT__stricoll_l(str1, str2, NULL);
 525 }
 526
 527 /*********************************************************************
 528  *              _strncoll_l (MSVCRT.@)
 529  */
 530 int CDECL MSVCRT__strncoll_l( const char* str1, const char* str2, MSVCRT_size_t count, MSVCRT__locale_t locale )
 531 {
 532     MSVCRT_pthreadlocinfo locinfo;
 533
 534     if(!locale)
 535         locinfo = get_locinfo();
 536     else
 537         locinfo = locale->locinfo;
 538
 539     return CompareStringA(locinfo->lc_handle[MSVCRT_LC_COLLATE], 0, str1, count, str2, count)-CSTR_EQUAL;
 540 }
 541
 542 /*********************************************************************
 543  *              _strncoll (MSVCRT.@)
 544  */
 545 int CDECL MSVCRT__strncoll( const char* str1, const char* str2, MSVCRT_size_t count )
 546 {
 547     return MSVCRT__strncoll_l(str1, str2, count, NULL);
 548 }
 549
 550 /*********************************************************************
 551  *              _strnicoll_l (MSVCRT.@)
 552  */
 553 int CDECL MSVCRT__strnicoll_l( const char* str1, const char* str2, MSVCRT_size_t count, MSVCRT__locale_t locale )
 554 {
 555     MSVCRT_pthreadlocinfo locinfo;
 556
 557     if(!locale)
 558         locinfo = get_locinfo();
 559     else
 560         locinfo = locale->locinfo;
 561
 562     return CompareStringA(locinfo->lc_handle[MSVCRT_LC_COLLATE], NORM_IGNORECASE,
 563             str1, count, str2, count)-CSTR_EQUAL;
 564 }
 565
 566 /*********************************************************************
 567  *              _strnicoll (MSVCRT.@)
 568  */
 569 int CDECL MSVCRT__strnicoll( const char* str1, const char* str2, MSVCRT_size_t count )
 570 {
 571     return MSVCRT__strnicoll_l(str1, str2, count, NULL);
 572 }
 573
 574 /*********************************************************************
 575  *                  strncpy (MSVCRT.@)
 576  */
 577 char* __cdecl MSVCRT_strncpy(char *dst, const char *src, MSVCRT_size_t len)
 578 {
 579     MSVCRT_size_t i;
 580
 581     for(i=0; i<len; i++)
 582         if((dst[i] = src[i]) == '\0') break;
 583
 584     while (i < len) dst[i++] = 0;
 585
 586     return dst;
 587 }
 588
 589 /*********************************************************************
 590  *      strcpy_s (MSVCRT.@)
 591  */
 592 int CDECL MSVCRT_strcpy_s( char* dst, MSVCRT_size_t elem, const char* src )
 593 {
 594     MSVCRT_size_t i;
 595     if(!elem) return MSVCRT_EINVAL;
 596     if(!dst) return MSVCRT_EINVAL;
 597     if(!src)
 598     {
 599         dst[0] = '\0';
 600         return MSVCRT_EINVAL;
 601     }
 602
 603     for(i = 0; i < elem; i++)
 604     {
 605         if((dst[i] = src[i]) == '\0') return 0;
 606     }
 607     dst[0] = '\0';
 608     return MSVCRT_ERANGE;
 609 }
 610
 611 /*********************************************************************
 612  *      strcat_s (MSVCRT.@)
 613  */
 614 int CDECL MSVCRT_strcat_s( char* dst, MSVCRT_size_t elem, const char* src )
 615 {
 616     MSVCRT_size_t i, j;
 617     if(!dst) return MSVCRT_EINVAL;
 618     if(elem == 0) return MSVCRT_EINVAL;
 619     if(!src)
 620     {
 621         dst[0] = '\0';
 622         return MSVCRT_EINVAL;
 623     }
 624
 625     for(i = 0; i < elem; i++)
 626     {
 627         if(dst[i] == '\0')
 628         {
 629             for(j = 0; (j + i) < elem; j++)
 630             {
 631                 if((dst[j + i] = src[j]) == '\0') return 0;
 632             }
 633         }
 634     }
 635     /* Set the first element to 0, not the first element after the skipped part */
 636     dst[0] = '\0';
 637     return MSVCRT_ERANGE;
 638 }
 639
 640 /*********************************************************************
 641  *      strncat_s (MSVCRT.@)
 642  */
 643 int CDECL MSVCRT_strncat_s( char* dst, MSVCRT_size_t elem, const char* src, MSVCRT_size_t count )
 644 {
 645     MSVCRT_size_t i, j;
 646
 647     if (!MSVCRT_CHECK_PMT(dst != 0)) return MSVCRT_EINVAL;
 648     if (!MSVCRT_CHECK_PMT(elem != 0)) return MSVCRT_EINVAL;
 649     if (!MSVCRT_CHECK_PMT(src != 0))
 650     {
 651         dst[0] = '\0';
 652         return MSVCRT_EINVAL;
 653     }
 654
 655     for(i = 0; i < elem; i++)
 656     {
 657         if(dst[i] == '\0')
 658         {
 659             for(j = 0; (j + i) < elem; j++)
 660             {
 661                 if(count == MSVCRT__TRUNCATE && j + i == elem - 1)
 662                 {
 663                     dst[j + i] = '\0';
 664                     return MSVCRT_STRUNCATE;
 665                 }
 666                 if(j == count || (dst[j + i] = src[j]) == '\0')
 667                 {
 668                     dst[j + i] = '\0';
 669                     return 0;
 670                 }
 671             }
 672         }
 673     }
 674     /* Set the first element to 0, not the first element after the skipped part */
 675     dst[0] = '\0';
 676     return MSVCRT_ERANGE;
 677 }
 678
 679 /*********************************************************************
 680  *      strncat (MSVCRT.@)
 681  */
 682 char* __cdecl MSVCRT_strncat(char *dst, const char *src, MSVCRT_size_t len)
 683 {
 684     return strncat(dst, src, len);
 685 }
 686
 687 /*********************************************************************
 688  *              strxfrm (MSVCRT.@)
 689  */
 690 MSVCRT_size_t CDECL MSVCRT_strxfrm( char *dest, const char *src, MSVCRT_size_t len )
 691 {
 692     /* FIXME: handle Windows locale */
 693     return strxfrm( dest, src, len );
 694 }
 695
 696 /********************************************************************
 697  *              _atoldbl (MSVCRT.@)
 698  */
 699 int CDECL MSVCRT__atoldbl(MSVCRT__LDOUBLE *value, const char *str)
 700 {
 701   /* FIXME needs error checking for huge/small values */
 702 #ifdef HAVE_STRTOLD
 703   long double ld;
 704   TRACE("str %s value %p\n",str,value);
 705   ld = strtold(str,0);
 706   memcpy(value, &ld, 10);
 707 #else
 708   FIXME("stub, str %s value %p\n",str,value);
 709 #endif
 710   return 0;
 711 }
 712
 713 /********************************************************************
 714  *              __STRINGTOLD (MSVCRT.@)
 715  */
 716 int CDECL __STRINGTOLD( MSVCRT__LDOUBLE *value, char **endptr, const char *str, int flags )
 717 {
 718 #ifdef HAVE_STRTOLD
 719     long double ld;
 720     FIXME("%p %p %s %x partial stub\n", value, endptr, str, flags );
 721     ld = strtold(str,0);
 722     memcpy(value, &ld, 10);
 723 #else
 724     FIXME("%p %p %s %x stub\n", value, endptr, str, flags );
 725 #endif
 726     return 0;
 727 }
 728
 729 /*********************************************************************
 730  *              strlen (MSVCRT.@)
 731  */
 732 MSVCRT_size_t __cdecl MSVCRT_strlen(const char *str)
 733 {
 734     return strlen(str);
 735 }
 736
 737 /******************************************************************
 738  *              strnlen (MSVCRT.@)
 739  */
 740 MSVCRT_size_t CDECL MSVCRT_strnlen(const char *s, MSVCRT_size_t maxlen)
 741 {
 742     MSVCRT_size_t i;
 743
 744     for(i=0; i<maxlen; i++)
 745         if(!s[i]) break;
 746
 747     return i;
 748 }
 749
 750 /*********************************************************************
 751  *  _strtoi64_l (MSVCRT.@)
 752  *
 753  * FIXME: locale parameter is ignored
 754  */
 755 __int64 CDECL MSVCRT_strtoi64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
 756 {
 757     BOOL negative = FALSE;
 758     __int64 ret = 0;
 759
 760     TRACE("(%s %p %d %p)\n", debugstr_a(nptr), endptr, base, locale);
 761
 762     if (!MSVCRT_CHECK_PMT(nptr != NULL)) return 0;
 763     if (!MSVCRT_CHECK_PMT(base == 0 || base >= 2)) return 0;
 764     if (!MSVCRT_CHECK_PMT(base <= 36)) return 0;
 765
 766     while(isspace(*nptr)) nptr++;
 767
 768     if(*nptr == '-') {
 769         negative = TRUE;
 770         nptr++;
 771     } else if(*nptr == '+')
 772         nptr++;
 773
 774     if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
 775         base = 16;
 776         nptr += 2;
 777     }
 778
 779     if(base == 0) {
 780         if(*nptr=='0')
 781             base = 8;
 782         else
 783             base = 10;
 784     }
 785
 786     while(*nptr) {
 787         char cur = tolower(*nptr);
 788         int v;
 789
 790         if(isdigit(cur)) {
 791             if(cur >= '0'+base)
 792                 break;
 793             v = cur-'0';
 794         } else {
 795             if(cur<'a' || cur>='a'+base-10)
 796                 break;
 797             v = cur-'a'+10;
 798         }
 799
 800         if(negative)
 801             v = -v;
 802
 803         nptr++;
 804
 805         if(!negative && (ret>MSVCRT_I64_MAX/base || ret*base>MSVCRT_I64_MAX-v)) {
 806             ret = MSVCRT_I64_MAX;
 807             *MSVCRT__errno() = MSVCRT_ERANGE;
 808         } else if(negative && (ret<MSVCRT_I64_MIN/base || ret*base<MSVCRT_I64_MIN-v)) {
 809             ret = MSVCRT_I64_MIN;
 810             *MSVCRT__errno() = MSVCRT_ERANGE;
 811         } else
 812             ret = ret*base + v;
 813     }
 814
 815     if(endptr)
 816         *endptr = (char*)nptr;
 817
 818     return ret;
 819 }
 820
 821 /*********************************************************************
 822  *  _strtoi64 (MSVCRT.@)
 823  */
 824 __int64 CDECL MSVCRT_strtoi64(const char *nptr, char **endptr, int base)
 825 {
 826     return MSVCRT_strtoi64_l(nptr, endptr, base, NULL);
 827 }
 828
 829 /*********************************************************************
 830  *  _atoi_l (MSVCRT.@)
 831  */
 832 int __cdecl MSVCRT__atoi_l(const char *str, MSVCRT__locale_t locale)
 833 {
 834     __int64 ret = MSVCRT_strtoi64_l(str, NULL, 10, locale);
 835
 836     if(ret > INT_MAX) {
 837         ret = INT_MAX;
 838         *MSVCRT__errno() = MSVCRT_ERANGE;
 839     } else if(ret < INT_MIN) {
 840         ret = INT_MIN;
 841         *MSVCRT__errno() = MSVCRT_ERANGE;
 842     }
 843     return ret;
 844 }
 845
 846 /*********************************************************************
 847  *  atoi (MSVCRT.@)
 848  */
 849 int __cdecl MSVCRT_atoi(const char *str)
 850 {
 851     BOOL minus = FALSE;
 852     int ret = 0;
 853
 854     if(!str)
 855         return 0;
 856
 857     while(isspace(*str)) str++;
 858
 859     if(*str == '+') {
 860         str++;
 861     }else if(*str == '-') {
 862         minus = TRUE;
 863         str++;
 864     }
 865
 866     while(*str>='0' && *str<='9') {
 867         ret = ret*10+*str-'0';
 868         str++;
 869     }
 870
 871     return minus ? -ret : ret;
 872 }
 873
 874 /******************************************************************
 875  *              strtol (MSVCRT.@)
 876  */
 877 MSVCRT_long CDECL MSVCRT_strtol(const char* nptr, char** end, int base)
 878 {
 879     __int64 ret = MSVCRT_strtoi64_l(nptr, end, base, NULL);
 880
 881     if(ret > MSVCRT_LONG_MAX) {
 882         ret = MSVCRT_LONG_MAX;
 883         *MSVCRT__errno() = MSVCRT_ERANGE;
 884     } else if(ret < MSVCRT_LONG_MIN) {
 885         ret = MSVCRT_LONG_MIN;
 886         *MSVCRT__errno() = MSVCRT_ERANGE;
 887     }
 888
 889     return ret;
 890 }
 891
 892 /******************************************************************
 893  *              strtoul (MSVCRT.@)
 894  */
 895 MSVCRT_ulong CDECL MSVCRT_strtoul(const char* nptr, char** end, int base)
 896 {
 897     __int64 ret = MSVCRT_strtoi64_l(nptr, end, base, NULL);
 898
 899     if(ret > MSVCRT_ULONG_MAX) {
 900         ret = MSVCRT_ULONG_MAX;
 901         *MSVCRT__errno() = MSVCRT_ERANGE;
 902     }else if(ret < -(__int64)MSVCRT_ULONG_MAX) {
 903         ret = 1;
 904         *MSVCRT__errno() = MSVCRT_ERANGE;
 905     }
 906
 907     return ret;
 908 }
 909
 910 /*********************************************************************
 911  *  _strtoui64_l (MSVCRT.@)
 912  *
 913  * FIXME: locale parameter is ignored
 914  */
 915 unsigned __int64 CDECL MSVCRT_strtoui64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
 916 {
 917     BOOL negative = FALSE;
 918     unsigned __int64 ret = 0;
 919
 920     TRACE("(%s %p %d %p)\n", debugstr_a(nptr), endptr, base, locale);
 921
 922     if (!MSVCRT_CHECK_PMT(nptr != NULL)) return 0;
 923     if (!MSVCRT_CHECK_PMT(base == 0 || base >= 2)) return 0;
 924     if (!MSVCRT_CHECK_PMT(base <= 36)) return 0;
 925
 926     while(isspace(*nptr)) nptr++;
 927
 928     if(*nptr == '-') {
 929         negative = TRUE;
 930         nptr++;
 931     } else if(*nptr == '+')
 932         nptr++;
 933
 934     if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
 935         base = 16;
 936         nptr += 2;
 937     }
 938
 939     if(base == 0) {
 940         if(*nptr=='0')
 941             base = 8;
 942         else
 943             base = 10;
 944     }
 945
 946     while(*nptr) {
 947         char cur = tolower(*nptr);
 948         int v;
 949
 950         if(isdigit(cur)) {
 951             if(cur >= '0'+base)
 952                 break;
 953             v = *nptr-'0';
 954         } else {
 955             if(cur<'a' || cur>='a'+base-10)
 956                 break;
 957             v = cur-'a'+10;
 958         }
 959
 960         nptr++;
 961
 962         if(ret>MSVCRT_UI64_MAX/base || ret*base>MSVCRT_UI64_MAX-v) {
 963             ret = MSVCRT_UI64_MAX;
 964             *MSVCRT__errno() = MSVCRT_ERANGE;
 965         } else
 966             ret = ret*base + v;
 967     }
 968
 969     if(endptr)
 970         *endptr = (char*)nptr;
 971
 972     return negative ? -ret : ret;
 973 }
 974
 975 /*********************************************************************
 976  *  _strtoui64 (MSVCRT.@)
 977  */
 978 unsigned __int64 CDECL MSVCRT_strtoui64(const char *nptr, char **endptr, int base)
 979 {
 980     return MSVCRT_strtoui64_l(nptr, endptr, base, NULL);
 981 }
 982
 983 static int ltoa_helper(MSVCRT_long value, char *str, MSVCRT_size_t size, int radix)
 984 {
 985     MSVCRT_ulong val;
 986     unsigned int digit;
 987     BOOL is_negative;
 988     char buffer[33], *pos;
 989     size_t len;
 990
 991     if (value < 0 && radix == 10)
 992     {
 993         is_negative = TRUE;
 994         val = -value;
 995     }
 996     else
 997     {
 998         is_negative = FALSE;
 999         val = value;
1000     }
1001
1002     pos = buffer + 32;
1003     *pos = '\0';
1004
1005     do
1006     {
1007         digit = val % radix;
1008         val /= radix;
1009
1010         if (digit < 10)
1011             *--pos = '0' + digit;
1012         else
1013             *--pos = 'a' + digit - 10;
1014     }
1015     while (val != 0);
1016
1017     if (is_negative)
1018         *--pos = '-';
1019
1020     len = buffer + 33 - pos;
1021     if (len > size)
1022     {
1023         size_t i;
1024         char *p = str;
1025
1026         /* Copy the temporary buffer backwards up to the available number of
1027          * characters. Don't copy the negative sign if present. */
1028
1029         if (is_negative)
1030         {
1031             p++;
1032             size--;
1033         }
1034
1035         for (pos = buffer + 31, i = 0; i < size; i++)
1036             *p++ = *pos--;
1037
1038         str[0] = '\0';
1039         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_ERANGE);
1040         return MSVCRT_ERANGE;
1041     }
1042
1043     memcpy(str, pos, len);
1044     return 0;
1045 }
1046
1047 /*********************************************************************
1048  *  _ltoa_s (MSVCRT.@)
1049  */
1050 int CDECL _ltoa_s(MSVCRT_long value, char *str, MSVCRT_size_t size, int radix)
1051 {
1052     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1053     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1054     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1055     {
1056         str[0] = '\0';
1057         return MSVCRT_EINVAL;
1058     }
1059
1060     return ltoa_helper(value, str, size, radix);
1061 }
1062
1063 /*********************************************************************
1064  *  _ltow_s (MSVCRT.@)
1065  */
1066 int CDECL _ltow_s(MSVCRT_long value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
1067 {
1068     MSVCRT_ulong val;
1069     unsigned int digit;
1070     BOOL is_negative;
1071     MSVCRT_wchar_t buffer[33], *pos;
1072     size_t len;
1073
1074     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1075     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1076     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1077     {
1078         str[0] = '\0';
1079         return MSVCRT_EINVAL;
1080     }
1081
1082     if (value < 0 && radix == 10)
1083     {
1084         is_negative = TRUE;
1085         val = -value;
1086     }
1087     else
1088     {
1089         is_negative = FALSE;
1090         val = value;
1091     }
1092
1093     pos = buffer + 32;
1094     *pos = '\0';
1095
1096     do
1097     {
1098         digit = val % radix;
1099         val /= radix;
1100
1101         if (digit < 10)
1102             *--pos = '0' + digit;
1103         else
1104             *--pos = 'a' + digit - 10;
1105     }
1106     while (val != 0);
1107
1108     if (is_negative)
1109         *--pos = '-';
1110
1111     len = buffer + 33 - pos;
1112     if (len > size)
1113     {
1114         size_t i;
1115         MSVCRT_wchar_t *p = str;
1116
1117         /* Copy the temporary buffer backwards up to the available number of
1118          * characters. Don't copy the negative sign if present. */
1119
1120         if (is_negative)
1121         {
1122             p++;
1123             size--;
1124         }
1125
1126         for (pos = buffer + 31, i = 0; i < size; i++)
1127             *p++ = *pos--;
1128
1129         str[0] = '\0';
1130         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_ERANGE);
1131         return MSVCRT_ERANGE;
1132     }
1133
1134     memcpy(str, pos, len * sizeof(MSVCRT_wchar_t));
1135     return 0;
1136 }
1137
1138 /*********************************************************************
1139  *  _itoa_s (MSVCRT.@)
1140  */
1141 int CDECL _itoa_s(int value, char *str, MSVCRT_size_t size, int radix)
1142 {
1143     return _ltoa_s(value, str, size, radix);
1144 }
1145
1146 /*********************************************************************
1147  *  _itoa (MSVCRT.@)
1148  */
1149 char* CDECL _itoa(int value, char *str, int radix)
1150 {
1151     return ltoa_helper(value, str, MSVCRT_SIZE_MAX, radix) ? NULL : str;
1152 }
1153
1154 /*********************************************************************
1155  *  _itow_s (MSVCRT.@)
1156  */
1157 int CDECL _itow_s(int value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
1158 {
1159     return _ltow_s(value, str, size, radix);
1160 }
1161
1162 /*********************************************************************
1163  *  _ui64toa_s (MSVCRT.@)
1164  */
1165 int CDECL MSVCRT__ui64toa_s(unsigned __int64 value, char *str,
1166         MSVCRT_size_t size, int radix)
1167 {
1168     char buffer[65], *pos;
1169     int digit;
1170
1171     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1172     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1173     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1174     {
1175         str[0] = '\0';
1176         return MSVCRT_EINVAL;
1177     }
1178
1179     pos = buffer+64;
1180     *pos = '\0';
1181
1182     do {
1183         digit = value%radix;
1184         value /= radix;
1185
1186         if(digit < 10)
1187             *--pos = '0'+digit;
1188         else
1189             *--pos = 'a'+digit-10;
1190     }while(value != 0);
1191
1192     if(buffer-pos+65 > size) {
1193         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_EINVAL);
1194         return MSVCRT_EINVAL;
1195     }
1196
1197     memcpy(str, pos, buffer-pos+65);
1198     return 0;
1199 }
1200
1201 /*********************************************************************
1202  *      _ui64tow_s  (MSVCRT.@)
1203  */
1204 int CDECL MSVCRT__ui64tow_s( unsigned __int64 value, MSVCRT_wchar_t *str,
1205                              MSVCRT_size_t size, int radix )
1206 {
1207     MSVCRT_wchar_t buffer[65], *pos;
1208     int digit;
1209
1210     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1211     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1212     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1213     {
1214         str[0] = '\0';
1215         return MSVCRT_EINVAL;
1216     }
1217
1218     pos = &buffer[64];
1219     *pos = '\0';
1220
1221     do {
1222         digit = value % radix;
1223         value = value / radix;
1224         if (digit < 10)
1225             *--pos = '0' + digit;
1226         else
1227             *--pos = 'a' + digit - 10;
1228     } while (value != 0);
1229
1230     if(buffer-pos+65 > size) {
1231         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_EINVAL);
1232         return MSVCRT_EINVAL;
1233     }
1234
1235     memcpy(str, pos, (buffer-pos+65)*sizeof(MSVCRT_wchar_t));
1236     return 0;
1237 }
1238
1239 /*********************************************************************
1240  *  _ultoa_s (MSVCRT.@)
1241  */
1242 int CDECL _ultoa_s(MSVCRT_ulong value, char *str, MSVCRT_size_t size, int radix)
1243 {
1244     MSVCRT_ulong digit;
1245     char buffer[33], *pos;
1246     size_t len;
1247
1248     if (!str || !size || radix < 2 || radix > 36)
1249     {
1250         if (str && size)
1251             str[0] = '\0';
1252
1253         *MSVCRT__errno() = MSVCRT_EINVAL;
1254         return MSVCRT_EINVAL;
1255     }
1256
1257     pos = buffer + 32;
1258     *pos = '\0';
1259
1260     do
1261     {
1262         digit = value % radix;
1263         value /= radix;
1264
1265         if (digit < 10)
1266             *--pos = '0' + digit;
1267         else
1268             *--pos = 'a' + digit - 10;
1269     }
1270     while (value != 0);
1271
1272     len = buffer + 33 - pos;
1273     if (len > size)
1274     {
1275         size_t i;
1276         char *p = str;
1277
1278         /* Copy the temporary buffer backwards up to the available number of
1279          * characters. */
1280
1281         for (pos = buffer + 31, i = 0; i < size; i++)
1282             *p++ = *pos--;
1283
1284         str[0] = '\0';
1285         *MSVCRT__errno() = MSVCRT_ERANGE;
1286         return MSVCRT_ERANGE;
1287     }
1288
1289     memcpy(str, pos, len);
1290     return 0;
1291 }
1292
1293 /*********************************************************************
1294  *  _ultow_s (MSVCRT.@)
1295  */
1296 int CDECL _ultow_s(MSVCRT_ulong value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
1297 {
1298     MSVCRT_ulong digit;
1299     WCHAR buffer[33], *pos;
1300     size_t len;
1301
1302     if (!str || !size || radix < 2 || radix > 36)
1303     {
1304         if (str && size)
1305             str[0] = '\0';
1306
1307         *MSVCRT__errno() = MSVCRT_EINVAL;
1308         return MSVCRT_EINVAL;
1309     }
1310
1311     pos = buffer + 32;
1312     *pos = '\0';
1313
1314     do
1315     {
1316         digit = value % radix;
1317         value /= radix;
1318
1319         if (digit < 10)
1320             *--pos = '0' + digit;
1321         else
1322             *--pos = 'a' + digit - 10;
1323     }
1324     while (value != 0);
1325
1326     len = buffer + 33 - pos;
1327     if (len > size)
1328     {
1329         size_t i;
1330         WCHAR *p = str;
1331
1332         /* Copy the temporary buffer backwards up to the available number of
1333          * characters. */
1334
1335         for (pos = buffer + 31, i = 0; i < size; i++)
1336             *p++ = *pos--;
1337
1338         str[0] = '\0';
1339         *MSVCRT__errno() = MSVCRT_ERANGE;
1340         return MSVCRT_ERANGE;
1341     }
1342
1343     memcpy(str, pos, len * sizeof(MSVCRT_wchar_t));
1344     return 0;
1345 }
1346
1347 /*********************************************************************
1348  *  _i64toa_s (MSVCRT.@)
1349  */
1350 int CDECL _i64toa_s(__int64 value, char *str, MSVCRT_size_t size, int radix)
1351 {
1352     unsigned __int64 val;
1353     unsigned int digit;
1354     BOOL is_negative;
1355     char buffer[65], *pos;
1356     size_t len;
1357
1358     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1359     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1360     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1361     {
1362         str[0] = '\0';
1363         return MSVCRT_EINVAL;
1364     }
1365
1366     if (value < 0 && radix == 10)
1367     {
1368         is_negative = TRUE;
1369         val = -value;
1370     }
1371     else
1372     {
1373         is_negative = FALSE;
1374         val = value;
1375     }
1376
1377     pos = buffer + 64;
1378     *pos = '\0';
1379
1380     do
1381     {
1382         digit = val % radix;
1383         val /= radix;
1384
1385         if (digit < 10)
1386             *--pos = '0' + digit;
1387         else
1388             *--pos = 'a' + digit - 10;
1389     }
1390     while (val != 0);
1391
1392     if (is_negative)
1393         *--pos = '-';
1394
1395     len = buffer + 65 - pos;
1396     if (len > size)
1397     {
1398         size_t i;
1399         char *p = str;
1400
1401         /* Copy the temporary buffer backwards up to the available number of
1402          * characters. Don't copy the negative sign if present. */
1403
1404         if (is_negative)
1405         {
1406             p++;
1407             size--;
1408         }
1409
1410         for (pos = buffer + 63, i = 0; i < size; i++)
1411             *p++ = *pos--;
1412
1413         str[0] = '\0';
1414         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_ERANGE);
1415         return MSVCRT_ERANGE;
1416     }
1417
1418     memcpy(str, pos, len);
1419     return 0;
1420 }
1421
1422 /*********************************************************************
1423  *  _i64tow_s (MSVCRT.@)
1424  */
1425 int CDECL _i64tow_s(__int64 value, MSVCRT_wchar_t *str, MSVCRT_size_t size, int radix)
1426 {
1427     unsigned __int64 val;
1428     unsigned int digit;
1429     BOOL is_negative;
1430     MSVCRT_wchar_t buffer[65], *pos;
1431     size_t len;
1432
1433     if (!MSVCRT_CHECK_PMT(str != NULL)) return MSVCRT_EINVAL;
1434     if (!MSVCRT_CHECK_PMT(size > 0)) return MSVCRT_EINVAL;
1435     if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
1436     {
1437         str[0] = '\0';
1438         return MSVCRT_EINVAL;
1439     }
1440
1441     if (value < 0 && radix == 10)
1442     {
1443         is_negative = TRUE;
1444         val = -value;
1445     }
1446     else
1447     {
1448         is_negative = FALSE;
1449         val = value;
1450     }
1451
1452     pos = buffer + 64;
1453     *pos = '\0';
1454
1455     do
1456     {
1457         digit = val % radix;
1458         val /= radix;
1459
1460         if (digit < 10)
1461             *--pos = '0' + digit;
1462         else
1463             *--pos = 'a' + digit - 10;
1464     }
1465     while (val != 0);
1466
1467     if (is_negative)
1468         *--pos = '-';
1469
1470     len = buffer + 65 - pos;
1471     if (len > size)
1472     {
1473         size_t i;
1474         MSVCRT_wchar_t *p = str;
1475
1476         /* Copy the temporary buffer backwards up to the available number of
1477          * characters. Don't copy the negative sign if present. */
1478
1479         if (is_negative)
1480         {
1481             p++;
1482             size--;
1483         }
1484
1485         for (pos = buffer + 63, i = 0; i < size; i++)
1486             *p++ = *pos--;
1487
1488         str[0] = '\0';
1489         MSVCRT_INVALID_PMT("str[size] is too small", MSVCRT_ERANGE);
1490         return MSVCRT_ERANGE;
1491     }
1492
1493     memcpy(str, pos, len * sizeof(MSVCRT_wchar_t));
1494     return 0;
1495 }
1496
1497 #define I10_OUTPUT_MAX_PREC 21
1498 /* Internal structure used by $I10_OUTPUT */
1499 struct _I10_OUTPUT_DATA {
1500     short pos;
1501     char sign;
1502     BYTE len;
1503     char str[I10_OUTPUT_MAX_PREC+1]; /* add space for '\0' */
1504 };
1505
1506 /*********************************************************************
1507  *              $I10_OUTPUT (MSVCRT.@)
1508  * ld80 - long double (Intel 80 bit FP in 12 bytes) to be printed to data
1509  * prec - precision of part, we're interested in
1510  * flag - 0 for first prec digits, 1 for fractional part
1511  * data - data to be populated
1512  *
1513  * return value
1514  *      0 if given double is NaN or INF
1515  *      1 otherwise
1516  *
1517  * FIXME
1518  *      Native sets last byte of data->str to '0' or '9', I don't know what
1519  *      it means. Current implementation sets it always to '0'.
1520  */
1521 int CDECL MSVCRT_I10_OUTPUT(MSVCRT__LDOUBLE ld80, int prec, int flag, struct _I10_OUTPUT_DATA *data)
1522 {
1523     static const char inf_str[] = "1#INF";
1524     static const char nan_str[] = "1#QNAN";
1525
1526     /* MS' long double type wants 12 bytes for Intel's 80 bit FP format.
1527      * Some UNIX have sizeof(long double) == 16, yet only 80 bit are used.
1528      * Assume long double uses 80 bit FP, never seen 128 bit FP. */
1529     long double ld = 0;
1530     double d;
1531     char format[8];
1532     char buf[I10_OUTPUT_MAX_PREC+9]; /* 9 = strlen("0.e+0000") + '\0' */
1533     char *p;
1534
1535     memcpy(&ld, &ld80, 10);
1536     d = ld;
1537     TRACE("(%lf %d %x %p)\n", d, prec, flag, data);
1538
1539     if(d<0) {
1540         data->sign = '-';
1541         d = -d;
1542     } else
1543         data->sign = ' ';
1544
1545     if(isinf(d)) {
1546         data->pos = 1;
1547         data->len = 5;
1548         memcpy(data->str, inf_str, sizeof(inf_str));
1549
1550         return 0;
1551     }
1552
1553     if(isnan(d)) {
1554         data->pos = 1;
1555         data->len = 6;
1556         memcpy(data->str, nan_str, sizeof(nan_str));
1557
1558         return 0;
1559     }
1560
1561     if(flag&1) {
1562         int exp = 1+floor(log10(d));
1563
1564         prec += exp;
1565         if(exp < 0)
1566             prec--;
1567     }
1568     prec--;
1569
1570     if(prec+1 > I10_OUTPUT_MAX_PREC)
1571         prec = I10_OUTPUT_MAX_PREC-1;
1572     else if(prec < 0) {
1573         d = 0.0;
1574         prec = 0;
1575     }
1576
1577     sprintf(format, "%%.%dle", prec);
1578     sprintf(buf, format, d);
1579
1580     buf[1] = buf[0];
1581     data->pos = atoi(buf+prec+3);
1582     if(buf[1] != '0')
1583         data->pos++;
1584
1585     for(p = buf+prec+1; p>buf+1 && *p=='0'; p--);
1586     data->len = p-buf;
1587
1588     memcpy(data->str, buf+1, data->len);
1589     data->str[data->len] = '\0';
1590
1591     if(buf[1]!='0' && prec-data->len+1>0)
1592         memcpy(data->str+data->len+1, buf+data->len+1, prec-data->len+1);
1593
1594     return 1;
1595 }
1596 #undef I10_OUTPUT_MAX_PREC
1597
1598 /*********************************************************************
1599  *                  memcmp (MSVCRT.@)
1600  */
1601 int __cdecl MSVCRT_memcmp(const void *ptr1, const void *ptr2, MSVCRT_size_t n)
1602 {
1603     return memcmp(ptr1, ptr2, n);
1604 }
1605
1606 /*********************************************************************
1607  *                  memcpy   (MSVCRT.@)
1608  */
1609 void * __cdecl MSVCRT_memcpy(void *dst, const void *src, MSVCRT_size_t n)
1610 {
1611     return memmove(dst, src, n);
1612 }
1613
1614 /*********************************************************************
1615  *                  memmove (MSVCRT.@)
1616  */
1617 void * __cdecl MSVCRT_memmove(void *dst, const void *src, MSVCRT_size_t n)
1618 {
1619     return memmove(dst, src, n);
1620 }
1621
1622 /*********************************************************************
1623  *                  memset (MSVCRT.@)
1624  */
1625 void* __cdecl MSVCRT_memset(void *dst, int c, MSVCRT_size_t n)
1626 {
1627     return memset(dst, c, n);
1628 }
1629
1630 /*********************************************************************
1631  *                  strchr (MSVCRT.@)
1632  */
1633 char* __cdecl MSVCRT_strchr(const char *str, int c)
1634 {
1635     return strchr(str, c);
1636 }
1637
1638 /*********************************************************************
1639  *                  strrchr (MSVCRT.@)
1640  */
1641 char* __cdecl MSVCRT_strrchr(const char *str, int c)
1642 {
1643     return strrchr(str, c);
1644 }
1645
1646 /*********************************************************************
1647  *                  memchr   (MSVCRT.@)
1648  */
1649 void* __cdecl MSVCRT_memchr(const void *ptr, int c, MSVCRT_size_t n)
1650 {
1651     return memchr(ptr, c, n);
1652 }
1653
1654 /*********************************************************************
1655  *                  strcmp (MSVCRT.@)
1656  */
1657 int __cdecl MSVCRT_strcmp(const char *str1, const char *str2)
1658 {
1659     return strcmp(str1, str2);
1660 }
1661
1662 /*********************************************************************
1663  *                  strncmp   (MSVCRT.@)
1664  */
1665 int __cdecl MSVCRT_strncmp(const char *str1, const char *str2, MSVCRT_size_t len)
1666 {
1667     return strncmp(str1, str2, len);
1668 }
1669
1670 /*********************************************************************
1671  *                  _strnicmp_l   (MSVCRT.@)
1672  */
1673 int __cdecl MSVCRT__strnicmp_l(const char *s1, const char *s2,
1674         MSVCRT_size_t count, MSVCRT__locale_t locale)
1675 {
1676     MSVCRT_pthreadlocinfo locinfo;
1677     char c1, c2;
1678
1679     if(s1==NULL || s2==NULL)
1680         return MSVCRT__NLSCMPERROR;
1681
1682     if(!count)
1683         return 0;
1684
1685     if(!locale)
1686         locinfo = get_locinfo();
1687     else
1688         locinfo = locale->locinfo;
1689
1690     if(!locinfo->lc_handle[MSVCRT_LC_CTYPE])
1691         return strncasecmp(s1, s2, count);
1692
1693     do {
1694         c1 = MSVCRT__tolower_l(*s1++, locale);
1695         c2 = MSVCRT__tolower_l(*s2++, locale);
1696     }while(--count && c1 && c1==c2);
1697
1698     return c1-c2;
1699 }
1700
1701 /*********************************************************************
1702  *                  _stricmp_l   (MSVCRT.@)
1703  */
1704 int __cdecl MSVCRT__stricmp_l(const char *s1, const char *s2, MSVCRT__locale_t locale)
1705 {
1706     return MSVCRT__strnicmp_l(s1, s2, -1, locale);
1707 }
1708
1709 /*********************************************************************
1710  *                  _strnicmp   (MSVCRT.@)
1711  */
1712 int __cdecl MSVCRT__strnicmp(const char *s1, const char *s2, MSVCRT_size_t count)
1713 {
1714     return MSVCRT__strnicmp_l(s1, s2, count, NULL);
1715 }
1716
1717 /*********************************************************************
1718  *                  _stricmp   (MSVCRT.@)
1719  */
1720 int __cdecl MSVCRT__stricmp(const char *s1, const char *s2)
1721 {
1722     return MSVCRT__strnicmp_l(s1, s2, -1, NULL);
1723 }
1724
1725 /*********************************************************************
1726  *                  strstr   (MSVCRT.@)
1727  */
1728 char* __cdecl MSVCRT_strstr(const char *haystack, const char *needle)
1729 {
1730     return strstr(haystack, needle);
1731 }