2 * MSVCRT string functions
4 * Copyright 1996,1998 Marcus Meissner
5 * Copyright 1996 Jukka Iivonen
6 * Copyright 1997,2000 Uwe Bonnes
7 * Copyright 2000 Jon Griffiths
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.
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.
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
24 #define _ISOC99_SOURCE
26 #include "wine/port.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
38 /*********************************************************************
42 char* CDECL _strdup(const char* str)
46 char * ret = MSVCRT_malloc(strlen(str)+1);
47 if (ret) strcpy( ret, str );
53 /*********************************************************************
56 char* CDECL MSVCRT__strnset(char* str, int value, MSVCRT_size_t len)
64 /*********************************************************************
67 char* CDECL _strrev(char* str)
73 for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
83 /*********************************************************************
86 char* CDECL _strset(char* str, int value)
95 /*********************************************************************
98 char * CDECL MSVCRT_strtok( char *str, const char *delim )
100 thread_data_t *data = msvcrt_get_thread_data();
104 if (!(str = data->strtok_next)) return NULL;
106 while (*str && strchr( delim, *str )) str++;
107 if (!*str) return NULL;
109 while (*str && !strchr( delim, *str )) str++;
110 if (*str) *str++ = 0;
111 data->strtok_next = str;
115 /*********************************************************************
116 * strtok_s (MSVCRT.@)
118 char * CDECL MSVCRT_strtok_s(char *str, const char *delim, char **ctx)
120 if(!delim || !ctx || (!str && !*ctx)) {
121 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
122 *MSVCRT__errno() = MSVCRT_EINVAL;
129 while(*str && strchr(delim, *str))
135 while(**ctx && !strchr(delim, **ctx))
143 /*********************************************************************
146 void CDECL MSVCRT__swab(char* src, char* dst, int len)
150 len = (unsigned)len >> 1;
162 /*********************************************************************
163 * strtod_l (MSVCRT.@)
165 double CDECL MSVCRT_strtod_l( const char *str, char **end, MSVCRT__locale_t locale)
167 unsigned __int64 d=0, hlp;
174 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
175 *MSVCRT__errno() = MSVCRT_EINVAL;
180 locale = get_locale();
182 /* FIXME: use *_l functions */
194 hlp = d*10+*(p++)-'0';
195 if(d>MSVCRT_UI64_MAX/10 || hlp<d) {
206 if(*p == *locale->locinfo->lconv->decimal_point)
210 hlp = d*10+*(p++)-'0';
211 if(d>MSVCRT_UI64_MAX/10 || hlp<d)
226 if(*p=='e' || *p=='E' || *p=='d' || *p=='D') {
238 if(e>INT_MAX/10 || (e=e*10+*p-'0')<0)
244 if(exp<0 && e<0 && exp+e>=0) exp = INT_MIN;
245 else if(exp>0 && e>0 && exp+e<0) exp = INT_MAX;
248 if(*p=='-' || *p=='+')
254 fpcontrol = _control87(0, 0);
255 _control87(MSVCRT__EM_DENORMAL|MSVCRT__EM_INVALID|MSVCRT__EM_ZERODIVIDE
256 |MSVCRT__EM_OVERFLOW|MSVCRT__EM_UNDERFLOW|MSVCRT__EM_INEXACT, 0xffffffff);
259 ret = (double)sign*d*pow(10, exp);
261 ret = (double)sign*d/pow(10, -exp);
263 _control87(fpcontrol, 0xffffffff);
265 if((d && ret==0.0) || isinf(ret))
266 *MSVCRT__errno() = MSVCRT_ERANGE;
274 /*********************************************************************
277 double CDECL MSVCRT_strtod( const char *str, char **end )
279 return MSVCRT_strtod_l( str, end, NULL );
282 /*********************************************************************
285 double CDECL MSVCRT_atof( const char *str )
287 return MSVCRT_strtod_l(str, NULL, NULL);
290 /*********************************************************************
293 double CDECL MSVCRT__atof_l( const char *str, MSVCRT__locale_t locale)
295 return MSVCRT_strtod_l(str, NULL, locale);
298 /*********************************************************************
301 int CDECL MSVCRT_strcoll( const char* str1, const char* str2 )
303 /* FIXME: handle Windows locale */
304 return strcoll( str1, str2 );
307 /*********************************************************************
308 * strcpy_s (MSVCRT.@)
310 int CDECL MSVCRT_strcpy_s( char* dst, MSVCRT_size_t elem, const char* src )
313 if(!elem) return MSVCRT_EINVAL;
314 if(!dst) return MSVCRT_EINVAL;
318 return MSVCRT_EINVAL;
321 for(i = 0; i < elem; i++)
323 if((dst[i] = src[i]) == '\0') return 0;
326 return MSVCRT_ERANGE;
329 /*********************************************************************
330 * strcat_s (MSVCRT.@)
332 int CDECL MSVCRT_strcat_s( char* dst, MSVCRT_size_t elem, const char* src )
335 if(!dst) return MSVCRT_EINVAL;
336 if(elem == 0) return MSVCRT_EINVAL;
340 return MSVCRT_EINVAL;
343 for(i = 0; i < elem; i++)
347 for(j = 0; (j + i) < elem; j++)
349 if((dst[j + i] = src[j]) == '\0') return 0;
353 /* Set the first element to 0, not the first element after the skipped part */
355 return MSVCRT_ERANGE;
358 /*********************************************************************
361 MSVCRT_size_t CDECL MSVCRT_strxfrm( char *dest, const char *src, MSVCRT_size_t len )
363 /* FIXME: handle Windows locale */
364 return strxfrm( dest, src, len );
367 /*********************************************************************
368 * _stricoll (MSVCRT.@)
370 int CDECL MSVCRT__stricoll( const char* str1, const char* str2 )
372 /* FIXME: handle collates */
373 TRACE("str1 %s str2 %s\n", debugstr_a(str1), debugstr_a(str2));
374 return lstrcmpiA( str1, str2 );
377 /********************************************************************
378 * _atoldbl (MSVCRT.@)
380 int CDECL MSVCRT__atoldbl(MSVCRT__LDOUBLE *value, const char *str)
382 /* FIXME needs error checking for huge/small values */
384 TRACE("str %s value %p\n",str,value);
385 value->x = strtold(str,0);
387 FIXME("stub, str %s value %p\n",str,value);
392 /********************************************************************
393 * __STRINGTOLD (MSVCRT.@)
395 int CDECL __STRINGTOLD( MSVCRT__LDOUBLE *value, char **endptr, const char *str, int flags )
398 FIXME("%p %p %s %x partial stub\n", value, endptr, str, flags );
399 value->x = strtold(str,endptr);
401 FIXME("%p %p %s %x stub\n", value, endptr, str, flags );
406 /******************************************************************
409 MSVCRT_long CDECL MSVCRT_strtol(const char* nptr, char** end, int base)
411 /* wrapper to forward libc error code to msvcrt's error codes */
415 ret = strtol(nptr, end, base);
418 case ERANGE: *MSVCRT__errno() = MSVCRT_ERANGE; break;
419 case EINVAL: *MSVCRT__errno() = MSVCRT_EINVAL; break;
421 /* cope with the fact that we may use 64bit long integers on libc
422 * while msvcrt always uses 32bit long integers
424 if (ret > MSVCRT_LONG_MAX)
426 ret = MSVCRT_LONG_MAX;
427 *MSVCRT__errno() = MSVCRT_ERANGE;
429 else if (ret < -MSVCRT_LONG_MAX - 1)
431 ret = -MSVCRT_LONG_MAX - 1;
432 *MSVCRT__errno() = MSVCRT_ERANGE;
440 /******************************************************************
443 MSVCRT_ulong CDECL MSVCRT_strtoul(const char* nptr, char** end, int base)
445 /* wrapper to forward libc error code to msvcrt's error codes */
449 ret = strtoul(nptr, end, base);
452 case ERANGE: *MSVCRT__errno() = MSVCRT_ERANGE; break;
453 case EINVAL: *MSVCRT__errno() = MSVCRT_EINVAL; break;
455 /* cope with the fact that we may use 64bit long integers on libc
456 * while msvcrt always uses 32bit long integers
458 if (ret > MSVCRT_ULONG_MAX)
460 ret = MSVCRT_ULONG_MAX;
461 *MSVCRT__errno() = MSVCRT_ERANGE;
469 /******************************************************************
472 MSVCRT_size_t CDECL MSVCRT_strnlen(const char *s, MSVCRT_size_t maxlen)
476 for(i=0; i<maxlen; i++)
482 /*********************************************************************
483 * _strtoi64_l (MSVCRT.@)
485 * FIXME: locale parameter is ignored
487 __int64 CDECL MSVCRT_strtoi64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
489 BOOL negative = FALSE;
492 TRACE("(%s %p %d %p)\n", nptr, endptr, base, locale);
494 if(!nptr || base<0 || base>36 || base==1) {
495 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
499 while(isspace(*nptr)) nptr++;
504 } else if(*nptr == '+')
507 if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
520 char cur = tolower(*nptr);
528 if(cur<'a' || cur>='a'+base-10)
538 if(!negative && (ret>MSVCRT_I64_MAX/base || ret*base>MSVCRT_I64_MAX-v)) {
539 ret = MSVCRT_I64_MAX;
540 *MSVCRT__errno() = MSVCRT_ERANGE;
541 } else if(negative && (ret<MSVCRT_I64_MIN/base || ret*base<MSVCRT_I64_MIN-v)) {
542 ret = MSVCRT_I64_MIN;
543 *MSVCRT__errno() = MSVCRT_ERANGE;
549 *endptr = (char*)nptr;
554 /*********************************************************************
555 * _strtoi64 (MSVCRT.@)
557 __int64 CDECL MSVCRT_strtoi64(const char *nptr, char **endptr, int base)
559 return MSVCRT_strtoi64_l(nptr, endptr, base, NULL);
562 /*********************************************************************
563 * _strtoui64_l (MSVCRT.@)
565 * FIXME: locale parameter is ignored
567 unsigned __int64 CDECL MSVCRT_strtoui64_l(const char *nptr, char **endptr, int base, MSVCRT__locale_t locale)
569 BOOL negative = FALSE;
570 unsigned __int64 ret = 0;
572 TRACE("(%s %p %d %p)\n", nptr, endptr, base, locale);
574 if(!nptr || base<0 || base>36 || base==1) {
575 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
579 while(isspace(*nptr)) nptr++;
584 } else if(*nptr == '+')
587 if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
600 char cur = tolower(*nptr);
608 if(cur<'a' || cur>='a'+base-10)
615 if(ret>MSVCRT_UI64_MAX/base || ret*base>MSVCRT_UI64_MAX-v) {
616 ret = MSVCRT_UI64_MAX;
617 *MSVCRT__errno() = MSVCRT_ERANGE;
623 *endptr = (char*)nptr;
625 return negative ? -ret : ret;
628 /*********************************************************************
629 * _strtoui64 (MSVCRT.@)
631 unsigned __int64 CDECL MSVCRT_strtoui64(const char *nptr, char **endptr, int base)
633 return MSVCRT_strtoui64_l(nptr, endptr, base, NULL);
636 /*********************************************************************
637 * _ui64toa_s (MSVCRT.@)
639 int CDECL MSVCRT__ui64toa_s(unsigned __int64 value, char *str,
640 MSVCRT_size_t size, int radix)
642 char buffer[65], *pos;
645 if(!str || radix<2 || radix>36) {
646 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
647 *MSVCRT__errno() = MSVCRT_EINVAL;
648 return MSVCRT_EINVAL;
661 *--pos = 'a'+digit-10;
664 if(buffer-pos+65 > size) {
665 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
666 *MSVCRT__errno() = MSVCRT_EINVAL;
667 return MSVCRT_EINVAL;
670 memcpy(str, pos, buffer-pos+65);
674 #define I10_OUTPUT_MAX_PREC 21
675 /* Internal structure used by $I10_OUTPUT */
676 struct _I10_OUTPUT_DATA {
680 char str[I10_OUTPUT_MAX_PREC+1]; /* add space for '\0' */
683 /*********************************************************************
684 * $I10_OUTPUT (MSVCRT.@)
685 * ld - long double to be printed to data
686 * prec - precision of part, we're interested in
687 * flag - 0 for first prec digits, 1 for fractional part
688 * data - data to be populated
691 * 0 if given double is NaN or INF
695 * Native sets last byte of data->str to '0' or '9', I don't know what
696 * it means. Current implementation sets it always to '0'.
698 int CDECL MSVCRT_I10_OUTPUT(MSVCRT__LDOUBLE ld, int prec, int flag, struct _I10_OUTPUT_DATA *data)
700 static const char inf_str[] = "1#INF";
701 static const char nan_str[] = "1#QNAN";
705 char buf[I10_OUTPUT_MAX_PREC+9]; /* 9 = strlen("0.e+0000") + '\0' */
708 TRACE("(%lf %d %x %p)\n", d, prec, flag, data);
719 memcpy(data->str, inf_str, sizeof(inf_str));
727 memcpy(data->str, nan_str, sizeof(nan_str));
733 int exp = 1+floor(log10(d));
741 if(prec+1 > I10_OUTPUT_MAX_PREC)
742 prec = I10_OUTPUT_MAX_PREC-1;
748 sprintf(format, "%%.%dle", prec);
749 sprintf(buf, format, d);
752 data->pos = atoi(buf+prec+3);
756 for(p = buf+prec+1; p>buf+1 && *p=='0'; p--);
759 memcpy(data->str, buf+1, data->len);
760 data->str[data->len] = '\0';
762 if(buf[1]!='0' && prec-data->len+1>0)
763 memcpy(data->str+data->len+1, buf+data->len+1, prec-data->len+1);
767 #undef I10_OUTPUT_MAX_PREC