iswspace

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 iss-
       pace(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', '\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 |
       +-----------+---------------+----------------+
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008, C99.

NOTES
       The behavior of iswspace() depends on the LC_CTYPE category of the cur-
       rent locale.

SEE ALSO
       isspace(3), iswctype(3)

COLOPHON
       This  page  is  part of release 4.04 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                               2015-08-08                       ISWSPACE(3)
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