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97 lines
2 KiB
C
97 lines
2 KiB
C
#include <precomp.h>
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/* Based on Wine Staging 1.9.9 - dlls/msvcrt/string.c */
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/*********************************************************************
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* _strtoi64_l (MSVCRT.@)
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*
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* FIXME: locale parameter is ignored
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*/
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__int64 CDECL _strtoi64_l(const char *nptr, char **endptr, int base, _locale_t locale)
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{
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const char *p = nptr;
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BOOL negative = FALSE;
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BOOL got_digit = FALSE;
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__int64 ret = 0;
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#ifndef _LIBCNT_
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TRACE("(%s %p %d %p)\n", debugstr_a(nptr), endptr, base, locale);
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#endif
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#ifndef __REACTOS__
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if (!MSVCRT_CHECK_PMT(nptr != NULL)) return 0;
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#endif
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if (!MSVCRT_CHECK_PMT(base == 0 || base >= 2)) return 0;
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if (!MSVCRT_CHECK_PMT(base <= 36)) return 0;
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while (isspace(*nptr)) nptr++;
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if(*nptr == '-') {
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negative = TRUE;
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nptr++;
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} else if(*nptr == '+')
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nptr++;
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if((base==0 || base==16) && *nptr=='0' && tolower(*(nptr+1))=='x') {
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base = 16;
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nptr += 2;
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}
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if(base == 0) {
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if(*nptr=='0')
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base = 8;
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else
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base = 10;
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}
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while(*nptr) {
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char cur = tolower(*nptr);
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int v;
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if(isdigit(cur)) {
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if(cur >= '0'+base)
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break;
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v = cur-'0';
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} else {
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if(cur<'a' || cur>='a'+base-10)
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break;
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v = cur-'a'+10;
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}
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got_digit = TRUE;
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if(negative)
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v = -v;
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nptr++;
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if(!negative && (ret>_I64_MAX/base || ret*base>_I64_MAX-v)) {
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ret = _I64_MAX;
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#ifndef _LIBCNT_
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*_errno() = ERANGE;
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#endif
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}
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else if (negative && (ret<_I64_MIN / base || ret*base<_I64_MIN - v)) {
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ret = _I64_MIN;
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#ifndef _LIBCNT_
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*_errno() = ERANGE;
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#endif
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}
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else
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ret = ret*base + v;
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}
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if(endptr)
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*endptr = (char*)(got_digit ? nptr : p);
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return ret;
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}
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__int64
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_strtoi64(const char *nptr, char **endptr, int base)
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{
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return _strtoi64_l(nptr, endptr, base, NULL);
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}
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/* EOF */
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