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ISWSPACE(3P)		   POSIX Programmer's Manual		  ISWSPACE(3P)

       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

       iswspace, iswspace_l — test for a white-space wide-character code

       #include <wctype.h>

       int iswspace(wint_t wc);
       int iswspace_l(wint_t wc, locale_t locale);

       For iswspace(): The functionality described on this reference  page  is
       aligned	with the ISO C standard. Any conflict between the requirements
       described here and the ISO C standard is unintentional. This volume  of
       POSIX.1‐2008 defers to the ISO C standard.

       The  iswspace()	and  iswspace_l() functions shall test whether wc is a
       wide-character code representing a character of class space in the cur‐
       rent  locale, or in the locale represented by locale, respectively; see
       the Base Definitions volume of POSIX.1‐2008, Chapter 7, Locale.

       The wc argument is a wint_t, the value of which the  application	 shall
       ensure  is  a wide-character code corresponding to a valid character in
       the current locale, or equal to the value of the	 macro	WEOF.  If  the
       argument has any other value, the behavior is undefined.

       The behavior is undefined if the locale argument to iswspace_l() is the
       special locale object LC_GLOBAL_LOCALE or is not a valid locale	object

       The  iswspace()	and iswspace_l() functions shall return non-zero if wc
       is a white-space wide-character code; otherwise, they shall return 0.

       No errors are defined.

       The following sections are informative.


       To ensure applications  portability,  especially	 across	 natural  lan‐
       guages,	only  these functions and the functions in the reference pages
       listed in the SEE ALSO section should be used for character classifica‐



       iswalnum(), iswalpha(), iswcntrl(), iswctype(), iswdigit(), iswgraph(),
       iswlower(), iswprint(),	iswpunct(),  iswupper(),  iswxdigit(),	setlo‐
       cale(), uselocale()

       The  Base  Definitions  volume  of  POSIX.1‐2008,  Chapter  7,  Locale,
       <locale.h>, <wctype.h>

       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal and Electronics Engineers,  Inc  and	 The  Open  Group.   (This  is
       POSIX.1-2008  with  the	2013  Technical Corrigendum 1 applied.) In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at .

       Any  typographical  or  formatting  errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files  to  man page format. To report such errors, see https://www.ker‐ .

IEEE/The Open Group		     2013			  ISWSPACE(3P)

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