wcswidth(3) - BetterMan

wcswidth(3)

determine columns needed for a fixed-size wide-character string

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Synopsis

#define _XOPEN_SOURCE
             /* See feature_test_macros(7) */
#include <wchar.h>
int wcswidth(const wchar_t *
s
, size_t 
n
);

—

NAME

wcswidth - determine columns needed for a fixed-size wide-character string

SYNOPSIS

bash

#define _XOPEN_SOURCE\n             /* See feature_test_macros(7) */
\n#include <wchar.h>

bash

int wcswidth(const wchar_t *\ns\n, size_t \nn\n);

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

STANDARDS

POSIX.1-2008.

HISTORY

POSIX.1-2001.

NOTES

The behavior of wcswidth() depends on the LC_CTYPE category of the current locale.