Linux man pages

Section (3) wcsdup

Linux manual pages	Section 3

Name

wcsdup — duplicate a wide-character string

Synopsis

#include <wchar.h>

wchar_t *wcsdup( const wchar_t *s);

Note

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
`wcsdup`():
Since glibc 2.10:
`_POSIX_C_SOURCE` >= 200809L
Before glibc 2.10:
`_GNU_SOURCE`

DESCRIPTION

The wcsdup() function is the wide-character equivalent of the 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 s.

Memory for the new wide-character string is obtained with malloc(3), and should be freed with free(3).

RETURN VALUE

On success, wcsdup() returns a pointer to the new wide-character string. On error, it returns NULL, with errno set to indicate the cause of the error.

ERRORS

ENOMEM: Insufficient memory available to allocate duplicate string.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
`wcsdup`()	Thread safety	MT-Safe

CONFORMING TO

POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.

COLOPHON

This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.

  Copyright (c) Bruno Haible <haibleclisp.cons.org>

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References consulted:
  GNU glibc-2 source code and manual
  Dinkumware C library reference http://www.dinkumware.com/
  OpenGroup_zsingle_quotesz_s Single UNIX specification http://www.UNIX-systems.org/online.html