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#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <reent.h>
#include <errno.h>
#include <string.h>
size_t
mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
{
int retval = 0;
_REENT_CHECK_MISC(_REENT);
if (s == NULL)
retval = _mbtowc_r (_REENT, pwc, "", 1, ps);
else
retval = _mbtowc_r (_REENT, pwc, s, n, ps);
if (*pwc == NULL)
memset (ps, '\0', sizeof (mbstate_t));
if (retval == -1)
{
_REENT->_errno = EILSEQ;
return (size_t)(-1);
}
else
return (size_t)retval;
}
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