iswspace(3) — Linux manual page

iswspace(3)             Library Functions Manual             iswspace(3)

NAME         top

       iswspace - test for whitespace wide character

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <wctype.h>

       int iswspace(wint_t wc);

DESCRIPTION         top

       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'.

RETURN VALUE         top

       The iswspace() function returns nonzero if wc is a wide character
       belonging to the wide-character class "space".  Otherwise, it
       returns zero.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌──────────────────────────────┬───────────────┬────────────────┐
       │ Interface                    │ Attribute     │ Value          │
       ├──────────────────────────────┼───────────────┼────────────────┤
       │ iswspace()                   │ Thread safety │ MT-Safe locale │
       └──────────────────────────────┴───────────────┴────────────────┘

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       POSIX.1-2001, C99.

NOTES         top

       The behavior of iswspace() depends on the LC_CTYPE category of
       the current locale.

SEE ALSO         top

       isspace(3), iswctype(3)

COLOPHON         top

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Linux man-pages 6.9.1          2024-06-15                    iswspace(3)

Pages that refer to this page: isalpha(3),  iswctype(3)

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