Originální popis anglicky:
iswspace - test for whitespace wide character
Návod, kniha: Linux Programmer's Manual
#include <wctype.h>
int iswspace(wint_t wc);
The
iswspace function is the wide-character equivalent of the
isspace function. It tests whether
wc is a wide character
belonging to the wide character class "space".
The wide character class "space" is disjoint from the wide character
class "graph" and therefore also disjoint from its subclasses
"alnum", "alpha", "upper", "lower",
"digit", "xdigit", "punct".
The wide character class "space" contains the wide character class
"blank".
The wide character class "space" always contains at least the space
character and the control characters '\f', '\n', '\r', '\t', '\v'.
The
iswspace function returns non-zero if
wc is a wide character
belonging to the wide character class "space". Otherwise it returns
zero.
ISO/ANSI C, UNIX98
isspace(3),
iswctype(3)
The behaviour of
iswspace depends on the LC_CTYPE category of the current
locale.
