iswspace(3) — Linux manual page

iswspace(3)             Library Functions Manual             iswspace(3)

NAME

       iswspace - test for whitespace wide character

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #include <wctype.h>

       int iswspace(wint_t wc);

DESCRIPTION

       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

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

ATTRIBUTES

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

STANDARDS

       C11, POSIX.1-2008.

HISTORY

       POSIX.1-2001, C99.

NOTES

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

SEE ALSO

       isspace(3), iswctype(3)

COLOPHON

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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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