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



NAME
       iswspace - test for whitespace wide character

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 con‐
       trol characters '\f', '\n', '\r', '\t', '\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.

CONFORMING TO
       C99.

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

SEE ALSO
       isspace(3), iswctype(3)

COLOPHON
       This page is part of release 3.74 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at http://www.kernel.org/doc/man-pages/.



GNU                                         1999-07-25                                ISWSPACE(3)