wcsdup - duplicate a wide-character string
#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
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 cause of the
error.
- ENOMEM
- 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 |
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely
available on other systems.
strdup(3),
wcscpy(3)