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wcswidth.3

WCSWIDTH

Section: Linux Programmer's Manual (3)
Updated: 2007-07-26
Index Return to Main Contents
 

NAME

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

SYNOPSIS

#define _XOPEN_SOURCE
#include <wchar.h>

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

DESCRIPTION

The wcswidth() function returns the number of columns needed to represent the wide-character string pointed to by s, but at most n wide characters. If a non-printable wide character occurs among these characters, -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 current locale.  

SEE ALSO

iswprint(3), wcwidth(3)  

COLOPHON

This page is part of release 3.21 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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

 

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