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iswspace(3) Library Functions Manual iswspace(3)
iswspace - test for whitespace wide character
Standard C library (libc, -lc)
#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', and '\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 │ └──────────────────────────────┴───────────────┴────────────────┘
C11, POSIX.1-2008.
POSIX.1-2001, C99.
The behavior of iswspace() depends on the LC_CTYPE category of the current locale.
isspace(3), iswctype(3)
Linux man-pages (unreleased) (date) iswspace(3)
Pages that refer to this page: isalpha(3), iswctype(3)