WCSWIDTH(3)		   Linux Programmers Manual		  WCSWIDTH(3)



NAME
       wcswidth  -  determine  columns	needed for a fixed-size wide-character
       string

SYNOPSIS
       #define _XOPEN_SOURCE
       #include 

       int wcswidth(const wchar_t *s, size_t n);

DESCRIPTION
       The wcswidth() function returns the number of columns needed to	repre
       sent  the  wide-character  string  pointed  to by s, but at most n wide
       characters.  If a non-printable wide character occurs among these char
       acters, -1 is returned.

RETURN VALUE
       The  wcswidth() function returns the number of column positions for the
       wide-character string s, truncated to at most length n.

CONFORMING TO
       POSIX.1-2001.

NOTES
       The behavior of wcswidth() depends on the LC_CTYPE category of the cur
       rent locale.

SEE ALSO
       iswprint(3), wcwidth(3)

COLOPHON
       This  page  is  part of release 3.05 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



GNU				  2007-07-26			   WCSWIDTH(3)