des_crypt.3: Minor wording fix in VERSIONS

[thirdparty/man-pages.git] / man3 / wcsdup.3

diff --git a/man3/wcsdup.3 b/man3/wcsdup.3
index 7f2049918ab16cf14aedd899295b301522055b55..f00628cda97fdd9d69ac658050382b13e64cf532 100644 (file)
--- a/man3/wcsdup.3
+++ b/man3/wcsdup.3
@@ -1,47 +1,90 @@
 .\" 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 WCSDUP 3  2003-11-01 "GNU" "Linux Programmer's Manual"
+.TH WCSDUP 3  2017-09-15 "GNU" "Linux Programmer's Manual"
 .SH NAME
 wcsdup \- duplicate a wide-character string
 .SH SYNOPSIS
 .nf
-.B #define _GNU_SOURCE
-.br
 .B #include <wchar.h>
-.sp
+.PP
 .BI "wchar_t *wcsdup(const wchar_t *" s );
 .fi
+.PP
+.in -4n
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.in
+.PP
+.BR wcsdup ():
+.PD 0
+.ad l
+.RS 4
+.TP 4
+Since glibc 2.10:
+_POSIX_C_SOURCE\ >=\ 200809L
+.TP
+Before glibc 2.10:
+_GNU_SOURCE
+.RE
+.ad
+.PD
 .SH DESCRIPTION
-The \fBwcsdup\fP() function is the wide-character equivalent
-of the \fBstrdup\fP(3) function.
+The
+.BR wcsdup ()
+function is the wide-character equivalent
+of the
+.BR strdup (3)
+function.
 It allocates and returns a new wide-character string whose initial
-contents is a duplicate of the wide-character string pointed to by \fIs\fP.
+contents is a duplicate of the wide-character string pointed to by
+.IR s .
 .PP
 Memory for the new wide-character string is
-obtained with \fBmalloc\fP(3), and
-can be freed with \fBfree\fP(3).
-.SH "RETURN VALUE"
-The \fBwcsdup\fP() function returns a pointer
-to the new wide-character string,
-or NULL if sufficient memory was not available.
+obtained with
+.BR malloc (3),
+and should be freed with
+.BR free (3).
+.SH RETURN VALUE
+On success,
+.BR wcsdup ()
+returns a pointer to the new wide-character string.
+On error, it returns NULL, with
+.I errno
+set to indicate the cause of the error.
 .SH ERRORS
 .TP
 .B ENOMEM
 Insufficient memory available to allocate duplicate string.
-.SH "CONFORMING TO"
-This function is a GNU extension.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface      Attribute       Value
+T{
+.BR wcsdup ()
+T}     Thread safety   MT-Safe
+.TE
+.sp 1
+.SH CONFORMING TO
+POSIX.1-2008.
+This function is not specified in POSIX.1-2001,
+and is not widely available on other systems.
 .\" present in libc5 and glibc 2.0 and later
-.SH "SEE ALSO"
+.SH SEE ALSO
 .BR strdup (3),
-.BR wcscpy (3),
-.BR feature_test_macros (7)
+.BR wcscpy (3)