reactos/reactos/lib/msvcrt/stdlib/mbtowc.c
Robert Dickenson f1592aa69f Improved unicode fileio support.
svn path=/trunk/; revision=3822
2002-12-05 15:31:26 +00:00

52 lines
1 KiB
C

#include <windows.h>
#include <msvcrt/stdlib.h>
#include <msvcrt/ctype.h>
#if 1
int mbtowc(wchar_t *dst, const char *str, size_t n)
{
// printf("\t\t\tmbtowc(%p, %p, %d) called.\n", dst, str, n);
if (n <= 0 || !str)
return 0;
*dst = *str;
if (!*str)
return 0;
return 1;
}
#else
int mbtowc(wchar_t *dst, const char *str, size_t n)
{
if (n <= 0 || !str)
return 0;
if (!MultiByteToWideChar(CP_ACP, 0, str, n, dst, (dst == NULL) ? 0 : 1)) {
DWORD err = GetLastError();
switch (err) {
case ERROR_INSUFFICIENT_BUFFER:
break;
case ERROR_INVALID_FLAGS:
break;
case ERROR_INVALID_PARAMETER:
break;
case ERROR_NO_UNICODE_TRANSLATION:
break;
default:
return 1;
}
return -1;
}
/* return the number of bytes from src that have been used */
if (!*str)
return 0;
if (n >= 2 && isleadbyte(*str) && str[1])
return 2;
return 1;
}
#endif