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

79 lines
1.4 KiB
C

#include <reent.h>
#include <newlib.h>
#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include "local.h"
size_t
_mbrtowc_r (struct _reent *ptr,
wchar_t *pwc,
const char *s,
size_t n,
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 (ptr, NULL, "", 1, ps);
else
retval = __MBTOWC (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
mbrtowc (wchar_t *__restrict pwc,
const char *__restrict s,
size_t n,
mbstate_t *__restrict ps)
{
#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
return _mbrtowc_r (_REENT, pwc, s, n, ps);
#else
int retval = 0;
struct _reent *reent = _REENT;
#ifdef _MB_CAPABLE
if (ps == NULL)
{
_REENT_CHECK_MISC(reent);
ps = &(_REENT_MBRTOWC_STATE(reent));
}
#endif
if (s == NULL)
retval = __MBTOWC (reent, NULL, "", 1, ps);
else
retval = __MBTOWC (reent, pwc, s, n, ps);
if (retval == -1)
{
ps->__count = 0;
reent->_errno = EILSEQ;
return (size_t)(-1);
}
else
return (size_t)retval;
#endif /* not PREFER_SIZE_OVER_SPEED */
}
#endif /* !_REENT_ONLY */