wcsdup (3)

Leading comments

Copyright (c) Bruno Haible <haible@clisp.cons.org>

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References consulted:
  GNU glibc-2 source code and manual
  Dinkumware C library reference http://www.dinkumware.com/
  OpenGroup's Single UNIX specificat...

(The comments found at the beginning of the groff file "man3/wcsdup.3".)

NAME

wcsdup - duplicate a wide-character string

SYNOPSIS

#include <wchar.h>

wchar_t *wcsdup(const wchar_t *s);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

wcsdup():

Since glibc 2.10:

_XOPEN_SOURCE >= 700 || _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 -1, 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.

SEE ALSO

strdup(3), wcscpy(3)

COLOPHON

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