iswctype - wide-character classification
int iswctype(wint_t wc, wctype_t desc);
If wc is a wide character having the character property designated by
desc (or in other words: belongs to the character class designated by
desc), the iswctype() function returns nonzero. Otherwise it returns
zero. If wc is WEOF, zero is returned.
desc must be a character property descriptor returned by the wctype(3)
The iswctype() function returns nonzero if the wc has the designated
property. Otherwise it returns 0.
Multithreading (see pthreads(7))
The iswctype() function is thread-safe.
The behavior of iswctype() depends on the LC_CTYPE category of the
iswalnum(3), iswalpha(3), iswblank(3), iswcntrl(3), iswdigit(3),
iswgraph(3), iswlower(3), iswprint(3), iswpunct(3), iswspace(3),
iswupper(3), iswxdigit(3), wctype(3)
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