WCSWIDTH(3) Linux Programmer's Manual WCSWIDTH(3)NAMEwcswidth - determine columns needed for a fixed-size wide character
string
SYNOPSIS
#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 non-printable 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.
SEE ALSOiswprint(3), wcwidth(3)NOTES
The behaviour of wcswidth() depends on the LC_CTYPE category of the
current locale.
GNU 1999-07-25 WCSWIDTH(3)