1 /* 2 * COPYRIGHT: See COPYING in the top level directory 3 * PROJECT: ReactOS system libraries 4 * FILE: lib/sdk/crt/stdlib/mbtowc.c 5 * PURPOSE: Unknown 6 * PROGRAMER: Unknown 7 * UPDATE HISTORY: 8 * 25/11/05: Added license header 9 */ 10 11 #include <precomp.h> 12 13 /********************************************************************* 14 * _mbtowc_l(MSVCRT.@) 15 */ 16 int CDECL _mbtowc_l(wchar_t *dst, const char* str, size_t n, _locale_t locale) 17 { 18 MSVCRT_pthreadlocinfo locinfo; 19 wchar_t tmpdst = '\0'; 20 21 if(!locale) 22 locinfo = get_locinfo(); 23 else 24 locinfo = (MSVCRT_pthreadlocinfo)(locale->locinfo); 25 26 if(n <= 0 || !str) 27 return 0; 28 if(!locinfo->lc_codepage) 29 tmpdst = (unsigned char)*str; 30 else if(!MultiByteToWideChar(locinfo->lc_codepage, 0, str, n, &tmpdst, 1)) 31 return -1; 32 if(dst) 33 *dst = tmpdst; 34 /* return the number of bytes from src that have been used */ 35 if(!*str) 36 return 0; 37 if(n >= 2 && _isleadbyte_l((unsigned char)*str, locale) && str[1]) 38 return 2; 39 return 1; 40 } 41 42 /********************************************************************* 43 * mbtowc(MSVCRT.@) 44 */ 45 int CDECL mbtowc(wchar_t *dst, const char* str, size_t n) 46 { 47 return _mbtowc_l(dst, str, n, NULL); 48 } 49