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wcsdup
Section: C Library Functions (3) Updated: 202-0-08 Index
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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.
SEE ALSO
strdup(3),
wcscpy(3)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- ATTRIBUTES
-
- STANDARDS
-
- HISTORY
-
- SEE ALSO
-
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