Originální popis anglicky:
iswctype - wide character classification
Návod, kniha: Linux Programmer's Manual
#include <wctype.h>
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 non-zero. Otherwise it
returns zero. If
wc is WEOF, zero is returned.
desc must be a character property descriptor returned by the
wctype function.
The
iswctype function returns non-zero if the
wc has the
designated property. Otherwise it returns 0.
ISO/ANSI C, UNIX98
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)
The behaviour of
iswctype depends on the LC_CTYPE category of the current
locale.
