LDP: Update original to LDP v3.79

[linuxjm/LDP_man-pages.git] / original / man3 / wcsnlen.3

diff --git a/original/man3/wcsnlen.3 b/original/man3/wcsnlen.3
index 0d21a3f..267c4fe 100644 (file)
--- a/original/man3/wcsnlen.3
+++ b/original/man3/wcsnlen.3
@@ -1,25 +1,45 @@
 .\" 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
+.\"   OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
 .\"
-.TH WCSNLEN 3  2007-07-26 "GNU" "Linux Programmer's Manual"
+.TH WCSNLEN 3  2013-11-25 "GNU" "Linux Programmer's Manual"
 .SH NAME
 wcsnlen \- determine the length of a fixed-size wide-character string
 .SH SYNOPSIS
 .nf
-.B #define _GNU_SOURCE
 .B #include <wchar.h>
 .sp
 .BI "size_t wcsnlen(const wchar_t *" s ", size_t " maxlen );
 .fi
+.sp
+.in -4n
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.in
+.sp
+.BR wcsnlen ():
+.PD 0
+.ad l
+.RS 4
+.TP 4
+Since glibc 2.10:
+_XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
+.TP
+Before glibc 2.10:
+_GNU_SOURCE
+.RE
+.ad
+.PD
 .SH DESCRIPTION
 The
 .BR wcsnlen ()
@@ -28,20 +48,53 @@ of the
 .BR strnlen (3)
 function.
 It returns the number of wide-characters in the string pointed to by
-\fIs\fP, not including the terminating L\(aq\\0\(aq character, but at most
-\fImaxlen\fP.
+.IR s ,
+not including the terminating null wide character (L\(aq\\0\(aq),
+but at most
+.I maxlen
+wide characters (note: this parameter is not a byte count).
 In doing this,
 .BR wcsnlen ()
-looks only at the first \fImaxlen\fP
-wide-characters at \fIs\fP and never beyond \fIs+maxlen\fP.
-.SH "RETURN VALUE"
+looks at only the first
+.I maxlen
+wide characters at
+.I s
+and never beyond
+.IR s+maxlen .
+.SH RETURN VALUE
+The
+.BR wcsnlen ()
+function returns
+.IR wcslen(s) ,
+if that is less than
+.IR maxlen ,
+or
+.I maxlen
+if there is no null wide character among the
+first
+.I maxlen
+wide characters pointed to by
+.IR s .
+.SH VERSIONS
+The
+.BR wcsnlen ()
+function is provided in glibc since version 2.1.
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
 The
 .BR wcsnlen ()
-function returns \fIwcslen(s)\fP, if that is less than
-\fImaxlen\fP, or \fImaxlen\fP if there is no L\(aq\\0\(aq character among the
-first \fImaxlen\fP wide characters pointed to by \fIs\fP.
-.SH "CONFORMING TO"
-This function is a GNU extension.
-.SH "SEE ALSO"
+function is thread-safe.
+.SH CONFORMING TO
+POSIX.1-2008.
+.SH SEE ALSO
 .BR strnlen (3),
 .BR wcslen (3)
+.SH COLOPHON
+This page is part of release 3.79 of the Linux
+.I man-pages
+project.
+A description of the project,
+information about reporting bugs,
+and the latest version of this page,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.