1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
3 .\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA)
4 .\" This is free documentation; you can redistribute it and/or
5 .\" modify it under the terms of the GNU General Public License as
6 .\" published by the Free Software Foundation; either version 2 of
7 .\" the License, or (at your option) any later version.
10 .\" References consulted:
11 .\" GNU glibc-2 source code and manual
12 .\" Dinkumware C library reference http://www.dinkumware.com/
13 .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
15 .TH WCSDUP 3 2017-09-15 "GNU" "Linux Programmer's Manual"
17 wcsdup \- duplicate a wide-character string
22 .BI "wchar_t *wcsdup(const wchar_t *" s );
26 Feature Test Macro Requirements for glibc (see
27 .BR feature_test_macros (7)):
36 _POSIX_C_SOURCE\ >=\ 200809L
46 function is the wide-character equivalent
50 It allocates and returns a new wide-character string whose initial
51 contents is a duplicate of the wide-character string pointed to by
54 Memory for the new wide-character string is
57 and should be freed with
62 returns a pointer to the new wide-character string.
63 On error, it returns NULL, with
65 set to indicate the cause of the error.
69 Insufficient memory available to allocate duplicate string.
71 For an explanation of the terms used in this section, see
77 Interface Attribute Value
80 T} Thread safety MT-Safe
85 This function is not specified in POSIX.1-2001,
86 and is not widely available on other systems.
87 .\" present in libc5 and glibc 2.0 and later