Man page - wcswidth(3)

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Manual

wcswidth

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
HISTORY
NOTES
SEE ALSO

NAME

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

LIBRARY

Standard C library ( libc , -lc )

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 .

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

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STANDARDS

POSIX.1-2008.

HISTORY

POSIX.1-2001.

NOTES

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

SEE ALSO

iswprint (3), wcwidth (3)