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.
This page is part of release 3.14 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/.