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Linux 2.6 - man page for iswblank (linux section 3posix)

ISWBLANK(P)			    POSIX Programmer's Manual			      ISWBLANK(P)

NAME
       iswblank - test for a blank wide-character code

SYNOPSIS
       #include <wctype.h>

       int iswblank(wint_t wc);

DESCRIPTION
       The  iswblank()	function  shall  test  whether wc is a wide-character code representing a
       character of class blank in the program's current locale; see the Base Definitions  volume
       of IEEE Std 1003.1-2001, 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.

RETURN VALUE
       The iswblank() function shall return non-zero if wc is a blank wide-character code; other-
       wise, it shall return 0.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       To ensure applications portability, especially across natural languages, only  this  func-
       tion  and  those listed in the SEE ALSO section should be used for classification of wide-
       character codes.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       iswalnum() , iswalpha() , iswcntrl() , iswctype() , iswdigit() , iswgraph() , iswlower() ,
       iswprint()  ,  iswpunct() , iswspace() , iswupper() , iswxdigit() , setlocale() , the Base
       Definitions volume of  IEEE Std 1003.1-2001,  Chapter  7,  Locale,  <stdio.h>,  <wchar.h>,
       <wctype.h>

COPYRIGHT
       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1, 2003 Edition, Standard for Information Technology  --  Portable	Operating  System
       Interface  (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
       the Institute of Electrical and Electronics Engineers, Inc and  The  Open  Group.  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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003				      ISWBLANK(P)


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