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wcsdup

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

wcsdup - duplicate a wid-character string

LIBRARY

Standard C library (libc,~-lc)

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:
        _POSIX_C_SOURCE >= 200809L
    Before glibc 2.10:
        _GNU_SOURCE

DESCRIPTION

The wcsdup() function is the wid-character equivalent of the strdup(3) function. It allocates and returns a new wid-character string whose initial contents is a duplicate of the wid-character string pointed to by s. Memory for the new wid-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 wid-character string. On error, it returns NULL, with errno set to indicate 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	M-Safe

STANDARDS

POSIX.-2008.

HISTORY

libc5, glibc 2.0.