mirror of https://github.com/mkerrisk/man-pages
78 lines
1.9 KiB
Groff
78 lines
1.9 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
|
|
.\"
|
|
.TH WCSDUP 3 2013-04-19 "GNU" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
wcsdup \- duplicate a wide-character string
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <wchar.h>
|
|
.sp
|
|
.BI "wchar_t *wcsdup(const wchar_t *" s );
|
|
.fi
|
|
.sp
|
|
.in -4n
|
|
Feature Test Macro Requirements for glibc (see
|
|
.BR feature_test_macros (7)):
|
|
.in
|
|
.sp
|
|
.BR wcsdup ():
|
|
.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 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
|
|
.IR s .
|
|
.PP
|
|
Memory for the new wide-character string is
|
|
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 \-1, 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
|
|
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
|
|
.BR strdup (3),
|
|
.BR wcscpy (3)
|