WCSWIDTH(3) Linux Programmer's Manual WCSWIDTH(3)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.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+-----------+---------------+----------------+
|Interface | Attribute | Value |
+-----------+---------------+----------------+
|wcswidth() | Thread safety | MT-Safe locale |
+-----------+---------------+----------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
NOTES
The behavior of wcswidth() depends on the LC_CTYPE category of the current locale.
SEE ALSO iswprint(3), wcwidth(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-08-08 WCSWIDTH(3)
Check Out this Related Man Page
WCSWIDTH(3) Linux Programmer's Manual WCSWIDTH(3)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.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+-----------+---------------+----------------+
|Interface | Attribute | Value |
+-----------+---------------+----------------+
|wcswidth() | Thread safety | MT-Safe locale |
+-----------+---------------+----------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
NOTES
The behavior of wcswidth() depends on the LC_CTYPE category of the current locale.
SEE ALSO iswprint(3), wcwidth(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-08-08 WCSWIDTH(3)
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