WCSDUP(3P) POSIX Programmer's Manual WCSDUP(3P)PROLOG
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.
NAMEwcsdup — duplicate a wide-character string
SYNOPSIS
#include <wchar.h>
wchar_t *wcsdup(const wchar_t *string);
DESCRIPTION
The wcsdup() function is the wide-character equivalent of the strdup()
function.
The wcsdup() function shall return a pointer to a new wide-character
string, allocated as if by a call to malloc(), which is the duplicate
of the wide-character string string. The returned pointer can be
passed to free(). A null pointer is returned if the new wide-character
string cannot be created.
RETURN VALUE
Upon successful completion, the wcsdup() function shall return a
pointer to the newly allocated wide-character string. Otherwise, it
shall return a null pointer and set errno to indicate the error.
ERRORS
The wcsdup() function shall fail if:
ENOMEM Memory large enough for the duplicate string could not be allo‐
cated.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
For functions that allocate memory as if by malloc(), the application
should release such memory when it is no longer required by a call to
free(). For wcsdup(), this is the return value.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOfree(), strdup(), wcscpy()
The Base Definitions volume of POSIX.1‐2008, <wchar.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
cal and Electronics Engineers, Inc and The Open Group. (This is
POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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 http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.ker‐
nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 WCSDUP(3P)
