WCSDUP(3)                  POSIX Programmer's Manual                 WCSDUP(3)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.

NAME
       wcsdup -- 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
              allocated.

       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 ALSO
       free(), strdup(), wcscpy()

       The Base Definitions volume of POSIX.1-2017, <wchar.h>

COPYRIGHT
       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 http://www.opengroup.org/unix/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.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                            WCSDUP(3)
