Scroll to navigation

wcsdup(3) Library Functions Manual wcsdup(3)

NAME

wcsdup - duplicate a wide-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 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 error.

ERRORS

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

STANDARDS

POSIX.1-2008.

HISTORY

libc5, glibc 2.0.

SEE ALSO

strdup(3), wcscpy(3)

2023-03-30 Linux man-pages 6.04