Originální popis anglicky:
iswpunct - test for punctuation or symbolic wide character
Návod, kniha: Linux Programmer's Manual
#include <wctype.h>
int iswpunct(wint_t wc);
The
iswpunct function is the wide-character equivalent of the
ispunct function. It tests whether
wc is a wide character
belonging to the wide character class "punct".
The wide character class "punct" is a subclass of the wide character
class "graph", and therefore also a subclass of the wide character
class "print".
The wide character class "punct" is disjoint from the wide character
class "alnum" and therefore also disjoint from its subclasses
"alpha", "upper", "lower", "digit",
"xdigit".
Being a subclass of the wide character class "print", the wide
character class "punct" is disjoint from the wide character class
"cntrl".
Being a subclass of the wide character class "graph", the wide
character class "punct" is disjoint from the wide character class
"space" and its subclass "blank".
The
iswpunct function returns non-zero if
wc is a wide character
belonging to the wide character class "punct". Otherwise it returns
zero.
ISO/ANSI C, UNIX98
ispunct(3),
iswctype(3)
The behaviour of
iswpunct depends on the LC_CTYPE category of the current
locale.
This function's name is a misnomer when dealing with Unicode characters, because
the wide character class "punct" contains both punctuation
characters and symbol (math, currency, etc.) characters.
