newlib-cygwin/newlib/libc/stdlib/mbrtowc.c

52 lines
879 B
C

#include <reent.h>
#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
size_t
_DEFUN (_mbrtowc_r, (ptr, pwc, s, n, ps),
struct _reent *ptr _AND
wchar_t *pwc _AND
const char *s _AND
size_t n _AND
mbstate_t *ps)
{
int retval = 0;
#ifdef MB_CAPABLE
if (ps == NULL)
{
_REENT_CHECK_MISC(ptr);
ps = &(_REENT_MBRTOWC_STATE(ptr));
}
#endif
if (s == NULL)
retval = _mbtowc_r (ptr, NULL, "", 1, ps);
else
retval = _mbtowc_r (ptr, pwc, s, n, ps);
if (retval == -1)
{
ps->__count = 0;
ptr->_errno = EILSEQ;
return (size_t)(-1);
}
else
return (size_t)retval;
}
#ifndef _REENT_ONLY
size_t
_DEFUN (mbrtowc, (pwc, s, n, ps),
wchar_t *pwc _AND
const char *s _AND
size_t n _AND
mbstate_t *ps)
{
return _mbrtowc_r (_REENT, pwc, s, n, ps);
}
#endif /* !_REENT_ONLY */