kolibrios-fun/contrib/sdk/sources/newlib/libc/stdlib/btowc.c
Sergey Semyonov (Serge) d210a76d45 newlib: wide char support
git-svn-id: svn://kolibrios.org@6607 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-10-19 01:34:56 +00:00

34 lines
540 B
C

#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <reent.h>
#include <string.h>
#include "local.h"
wint_t
btowc (int c)
{
mbstate_t mbs;
int retval = 0;
wchar_t pwc;
unsigned char b;
if (c == EOF)
return WEOF;
b = (unsigned char)c;
/* Put mbs in initial state. */
memset (&mbs, '\0', sizeof (mbs));
_REENT_CHECK_MISC(_REENT);
retval = __mbtowc (_REENT, &pwc, (const char *) &b, 1,
__locale_charset (), &mbs);
if (retval != 0 && retval != 1)
return WEOF;
return (wint_t)pwc;
}