NAME
wcswidth - determine columns needed for a fixed-size wide-character string
SYNOPSIS
#include <wchar.h>
I int wcswidth(const wchar_t * s , size_t n );
DESCRIPTION
The
R 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
R 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
R wcswidth ()
depends on the
LC_CTYPE
category of the
current locale.
SEE ALSO
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