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#include <wchar.h>
#include "_wchar.h"
GCC_SSE_HACK
size_t mbrtowc(wchar_t * restrict pwc, const char * restrict s, size_t n, mbstate_t * restrict ps)
{
static struct __mbstate_t internal = { 0 };
static mbstate_t ip = { &internal };
if (ps == NULL) {
ps = &ip;
}
SIGNAL_SAFE(0);
ASSERT_MBSTATE(ps, MBTOW, s, pwc);
/* TODO: overlap */
if (s == NULL) {
return mbrtowc(NULL, "", 1, ps);
}
SET_MBSTATE(ps, MBTOW, s, pwc);
return n;
}
/*
STDC(199409)
*/
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