mbsnrtowcs
size_t mbsnrtowcs(wchar_t * __restrict, const char ** __restrict, size_t,
_RESTART_BEGIN(mbsnrtowcs, _TO_CEI(cl), pspriv, psenc);
_RESTART_END(mbsnrtowcs, _TO_CEI(cl), pspriv, psenc);
ATF_TC(mbsnrtowcs);
ATF_TC_HEAD(mbsnrtowcs, tc)
ATF_TC_BODY(mbsnrtowcs, tc)
len = mbsnrtowcs(buf, &src, t->limit,
len = mbsnrtowcs(buf, &src, strlen(src) + 1,
ATF_TP_ADD_TC(tp, mbsnrtowcs);