wcswidth(3) - Linux man page

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 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

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.

Referenced By

utf-8(7)