iswspace(3) — Linux manual page


ISWSPACE(3)             Linux Programmer's Manual            ISWSPACE(3)

NAME         top

       iswspace - test for whitespace wide character

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",

       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'.

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

       │Interface                      Attribute     Value          │
       │iswspace()                     │ Thread safety │ MT-Safe locale │

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008, 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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GNU                            2021-03-22                    ISWSPACE(3)

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