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 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
   current locale.

SEE ALSO

   isspace(3), iswctype(3)

COLOPHON

   This  page  is  part of release 4.09 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
   https://www.kernel.org/doc/man-pages/.


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