reactos/sdk/lib/crt/stdlib/mbstowcs.c

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#include <precomp.h>
/*********************************************************************
* _mbstowcs_l
*/
size_t CDECL _mbstowcs_l(wchar_t *wcstr, const char *mbstr,
size_t count, _locale_t locale)
{
MSVCRT_pthreadlocinfo locinfo;
size_t i, size;
if(!locale)
locinfo = get_locinfo();
else
locinfo = ((MSVCRT__locale_t)locale)->locinfo;
/* Ignore count parameter */
if(!wcstr)
return MultiByteToWideChar(locinfo->lc_codepage, 0, mbstr, -1, NULL, 0)-1;
for(i=0, size=0; i<count; i++) {
if(mbstr[size] == '\0')
break;
size += (_isleadbyte_l((unsigned char)mbstr[size], locale) ? 2 : 1);
}
size = MultiByteToWideChar(locinfo->lc_codepage, 0,
mbstr, size, wcstr, count);
if(size<count && wcstr)
wcstr[size] = '\0';
return size;
}
/*
* @implemented
*/
size_t mbstowcs (wchar_t *widechar, const char *multibyte, size_t number)
{
return _mbstowcs_l(widechar, multibyte, number, NULL);
}