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

NAME
       wcswidth  -  determine  columns  needed for a fixed-size wide-character
       string
SYNOPSIS
       #define _XOPEN_SOURCE             /* See feature_test_macros(7) */
       #include <wchar.h>
       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 nonprintable 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 3.53 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)