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iswspace(3)

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).

       allbox; lb lb  lb  l  l  l.   Interface Attribute Value  T{  iswspace()
       T}   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 5.02 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/.



GNU                               2019-03-06                       ISWSPACE(3)
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