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)

Linux man-pages 6.7               2023-10-31                       iswspace(3)