Section: POSIX Programmer's Manual (3P)
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
--- duplicate a wide-character string
wchar_t *wcsdup(const wchar_t *string);
function is the wide-character equivalent of the
function shall return a pointer to a new wide-character string,
allocated as if by a call to
which is the duplicate of the wide-character string
The returned pointer can be passed to
A null pointer is returned if the new wide-character string cannot be
Upon successful completion, the
function shall return a pointer to the newly allocated wide-character
string. Otherwise, it shall return a null pointer and set
to indicate the error.
function shall fail if:
Memory large enough for the duplicate string could not be allocated.
The following sections are informative.
For functions that allocate memory as if by
the application should release such memory when it is no longer
required by a call to
this is the return value.
The Base Definitions volume of POSIX.1-2017,
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
In the event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
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