wcswidth3
Determine columns needed for a fixed-size wide-character string
Usage
#define _XOPEN_SOURCE /* See feature_test_macros(7) */ #include <wchar.h>
int wcswidth(const wchar_t *s, size_t n);
Library
Standard C library (libc, -lc)
Overview
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.
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| wcswidth() | Thread safety | MT-Safe locale |
Notes
The behavior of wcswidth() depends on the LC_CTYPE category of the current locale.
Releases
14 releases since Debian 2.2 (Potato); the text changed 13 times.