ReactOS 0.4.15-dev-5666-gc548b97
mbtowc.c
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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 */
16int CDECL _mbtowc_l(wchar_t *dst, const char* str, size_t n, _locale_t locale)
17{
19 wchar_t tmpdst = '\0';
20
21 if (!locale)
23 else
25
26 if (n <= 0 || !str)
27 return 0;
28
29 if (!*str) {
30 if (dst) *dst = 0;
31 return 0;
32 }
33
34 if (!locinfo->lc_codepage) {
35 if (dst) *dst = (unsigned char)*str;
36 return 1;
37 }
38 if (n >= 2 && _isleadbyte_l((unsigned char)*str, locale)) {
39 if (!MultiByteToWideChar(locinfo->lc_codepage, 0, str, 2, &tmpdst, 1))
40 return -1;
41 if (dst) *dst = tmpdst;
42 return 2;
43 }
44 if (!MultiByteToWideChar(locinfo->lc_codepage, 0, str, 1, &tmpdst, 1))
45 return -1;
46 if (dst) *dst = tmpdst;
47 return 1;
48}
49
50/*********************************************************************
51 * mbtowc(MSVCRT.@)
52 */
53int CDECL mbtowc(wchar_t *dst, const char* str, size_t n)
54{
55 return _mbtowc_l(dst, str, n, NULL);
56}
Definition: _locale.h:75
#define NULL
Definition: types.h:112
#define CDECL
Definition: compat.h:29
#define MultiByteToWideChar
Definition: compat.h:110
unsigned char
Definition: typeof.h:29
GLdouble n
Definition: glext.h:7729
GLenum GLenum dst
Definition: glext.h:6340
_Check_return_ _CRTIMP int __cdecl _isleadbyte_l(_In_ int _C, _In_opt_ _locale_t _Locale)
struct MSVCRT_threadlocaleinfostruct * MSVCRT_pthreadlocinfo
Definition: msvcrt.h:147
const WCHAR * str
else locinfo
Definition: scanf.h:159
int CDECL _mbtowc_l(wchar_t *dst, const char *str, size_t n, _locale_t locale)
Definition: mbtowc.c:16
#define mbtowc(wp, cp, len)
Definition: wchar.h:155
#define get_locinfo()
Definition: winesup.h:25