From 3d08cd331c1adcf0d917392f7e527b3f00511748 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Merging upstream version 6.8. Signed-off-by: Daniel Baumann --- man/man3/wcwidth.3 | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 man/man3/wcwidth.3 (limited to 'man/man3/wcwidth.3') diff --git a/man/man3/wcwidth.3 b/man/man3/wcwidth.3 new file mode 100644 index 0000000..5aaba2b --- /dev/null +++ b/man/man3/wcwidth.3 @@ -0,0 +1,77 @@ +'\" t +.\" Copyright (c) Bruno Haible +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.\" References consulted: +.\" GNU glibc-2 source code and manual +.\" Dinkumware C library reference http://www.dinkumware.com/ +.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html +.\" +.TH wcwidth 3 2024-05-02 "Linux man-pages (unreleased)" +.SH NAME +wcwidth \- determine columns needed for a wide character +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.BR "#define _XOPEN_SOURCE" " /* See feature_test_macros(7) */" +.B #include +.P +.BI "int wcwidth(wchar_t " c ); +.fi +.SH DESCRIPTION +The +.BR wcwidth () +function returns the number of columns +needed to represent the wide character +.IR c . +If +.I c +is a printable wide character, the value +is at least 0. +If +.I c +is null wide character (L\[aq]\e0\[aq]), the value is 0. +Otherwise, \-1 is returned. +.SH RETURN VALUE +The +.BR wcwidth () +function returns the number of +column positions for +.IR c . +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR wcwidth () +T} Thread safety MT-Safe locale +.TE +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001. +.P +Note that before glibc 2.2.5, glibc used the prototype +.P +.nf +.BI "int wcwidth(wint_t " c ); +.fi +.SH NOTES +The behavior of +.BR wcwidth () +depends on the +.B LC_CTYPE +category of the +current locale. +.SH SEE ALSO +.BR iswprint (3), +.BR wcswidth (3) -- cgit v1.2.3