Unix/Linux Go Back    


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

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


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

NAME
       iswcntrl - test for a control wide-character code

SYNOPSIS
       #include <wctype.h>

       int iswcntrl(wint_t wc);

DESCRIPTION
       The  iswcntrl()	function  shall  test  whether wc is a wide-character code representing a
       character of class cntrl 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 iswcntrl() function shall return non-zero if wc is a control wide-character code; oth-
       erwise, 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() , iswctype() , iswdigit() , iswgraph() , iswlower() , iswprint() ,
       iswpunct()  ,  iswspace()  , iswupper() , iswxdigit() , setlocale() , the Base Definitions
       volume of IEEE Std 1003.1-2001, Chapter 7, Locale, <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				      ISWCNTRL(P)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 01:16 AM.