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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON |
ISWSPACE(3) Linux Programmer's Manual ISWSPACE(3)
iswspace - test for whitespace wide character
#include <wctype.h>
int iswspace(wint_t wc);
The iswspace() function is the wide-character equivalent of the
isspace(3) 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 nonzero if wc is a wide character
belonging to the wide-character class "space". Otherwise, it returns
zero.
For an explanation of the terms used in this section, see
attributes(7).
┌───────────┬───────────────┬────────────────┐
│Interface │ Attribute │ Value │
├───────────┼───────────────┼────────────────┤
│iswspace() │ Thread safety │ MT-Safe locale │
└───────────┴───────────────┴────────────────┘
POSIX.1-2001, POSIX.1-2008, C99.
The behavior of iswspace() depends on the LC_CTYPE category of the
current locale.
isspace(3), iswctype(3)
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GNU 2015-08-08 ISWSPACE(3)
Pages that refer to this page: isalpha(3), iswctype(3)