NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

The Linux Programming Interface

WCSWIDTH(3)                   Linux Programmer's Manual                   WCSWIDTH(3)

NAME         top

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

SYNOPSIS         top

       #define _XOPEN_SOURCE             /* See feature_test_macros(7) */
       #include <wchar.h>

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

DESCRIPTION         top

       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
       nonprintable wide character occurs among these characters, -1 is returned.

RETURN VALUE         top

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

CONFORMING TO         top

       POSIX.1-2001.

NOTES         top

       The behavior of wcswidth() depends on the LC_CTYPE category of the current
       locale.

SEE ALSO         top

       iswprint(3), wcwidth(3)

COLOPHON         top

       This page is part of release 3.32 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                                   2010-09-10                          WCSWIDTH(3)

HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface