mirror of https://github.com/mkerrisk/man-pages
68 lines
1.6 KiB
Groff
68 lines
1.6 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
|
|
.\"
|
|
.\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
|
|
.\" This is free documentation; you can redistribute it and/or
|
|
.\" modify it under the terms of the GNU General Public License as
|
|
.\" published by the Free Software Foundation; either version 2 of
|
|
.\" the License, or (at your option) any later version.
|
|
.\" %%%LICENSE_END
|
|
.\"
|
|
.\" 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
|
|
.\" ISO/IEC 9899:1999
|
|
.\"
|
|
.TH WCSLEN 3 2021-08-27 "GNU" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
wcslen \- determine the length of a wide-character string
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <wchar.h>
|
|
.PP
|
|
.BI "size_t wcslen(const wchar_t *" s );
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The
|
|
.BR wcslen ()
|
|
function is the wide-character equivalent
|
|
of the
|
|
.BR strlen (3)
|
|
function.
|
|
It determines the length of the wide-character string pointed to
|
|
by
|
|
.IR s ,
|
|
excluding the terminating null wide character (L\(aq\e0\(aq).
|
|
.SH RETURN VALUE
|
|
The
|
|
.BR wcslen ()
|
|
function returns the
|
|
number of wide characters in
|
|
.IR s .
|
|
.SH ATTRIBUTES
|
|
For an explanation of the terms used in this section, see
|
|
.BR attributes (7).
|
|
.ad l
|
|
.nh
|
|
.TS
|
|
allbox;
|
|
lbx lb lb
|
|
l l l.
|
|
Interface Attribute Value
|
|
T{
|
|
.BR wcslen ()
|
|
T} Thread safety MT-Safe
|
|
.TE
|
|
.hy
|
|
.ad
|
|
.sp 1
|
|
.SH CONFORMING TO
|
|
POSIX.1-2001, POSIX.1-2008, C99.
|
|
.SH NOTES
|
|
In cases where the input buffer may not contain
|
|
a terminating null wide character,
|
|
.BR wcsnlen (3)
|
|
should be used instead.
|
|
.SH SEE ALSO
|
|
.BR strlen (3)
|