Name
wcswidth - determine columns needed for a fixed-size wide-character string Library
Standard C library ( libc ", " -lc ) Synopsis
"#define(7)_XOPEN_SOURCE" " /* See feature_test_macros */" #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. Attributes
For an explanation of the terms used in this section, see attributes(7). allbox; lbx lb lb | Interface | Attribute | Value |
T{ wcswidth() | T} | Thread safety | MT-Safe locale |
Notes
The behavior of wcswidth() depends on the LC_CTYPE category of the current locale.