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.

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 .