wcsdup(3) Library Functions Manual wcsdup(3)

wcsdup - duplicate a wide-character string

Standard C library (libc, -lc)

#include <wchar.h>
wchar_t *wcsdup(const wchar_t *s);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):


    Since glibc 2.10:
        _POSIX_C_SOURCE >= 200809L
    Before glibc 2.10:

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).

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

Insufficient memory available to allocate duplicate string.

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

Interface Attribute Value
wcsdup () Thread safety MT-Safe


libc5, glibc 2.0.

strdup(3), wcscpy(3)

2024-05-02 Linux man-pages 6.8