iswpunct function — Determines whether a wide character is punctuation
int iswpunct(wint_t wc)
The iswpunct function returns true (nonzero) if iswalnum(wc), iswcntrl(wc), and iswspace(wc) are false.
iswpunct
iswalnum(wc)
iswcntrl(wc)
iswspace(wc)
iswalnum function, iswcntrl function, iswspace function, ispunct in <cctype>
ispunct
<cctype>