1WCSDUP(3P)                 POSIX Programmer's Manual                WCSDUP(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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11

NAME

13       wcsdup — duplicate a wide-character string
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SYNOPSIS

16       #include <wchar.h>
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18       wchar_t *wcsdup(const wchar_t *string);
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DESCRIPTION

21       The wcsdup() function is the wide-character equivalent of the  strdup()
22       function.
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24       The  wcsdup()  function  shall return a pointer to a new wide-character
25       string, allocated as if by a call to malloc(), which is  the  duplicate
26       of  the  wide-character  string  string.   The  returned pointer can be
27       passed to free().  A null pointer is returned if the new wide-character
28       string cannot be created.
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RETURN VALUE

31       Upon  successful  completion,  the  wcsdup()  function  shall  return a
32       pointer to the newly allocated  wide-character  string.  Otherwise,  it
33       shall return a null pointer and set errno to indicate the error.
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ERRORS

36       The wcsdup() function shall fail if:
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38       ENOMEM Memory  large enough for the duplicate string could not be allo‐
39              cated.
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41       The following sections are informative.
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EXAMPLES

44       None.
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APPLICATION USAGE

47       For functions that allocate memory as if by malloc(),  the  application
48       should  release  such memory when it is no longer required by a call to
49       free().  For wcsdup(), this is the return value.
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RATIONALE

52       None.
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FUTURE DIRECTIONS

55       None.
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SEE ALSO

58       free(), strdup(), wcscpy()
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60       The Base Definitions volume of POSIX.1‐2008, <wchar.h>
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63       Portions of this text are reprinted and reproduced in  electronic  form
64       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
65       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
66       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
67       cal and Electronics Engineers,  Inc  and  The  Open  Group.   (This  is
68       POSIX.1-2008  with  the  2013  Technical Corrigendum 1 applied.) In the
69       event of any discrepancy between this version and the original IEEE and
70       The  Open Group Standard, the original IEEE and The Open Group Standard
71       is the referee document. The original Standard can be  obtained  online
72       at http://www.unix.org/online.html .
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74       Any  typographical  or  formatting  errors that appear in this page are
75       most likely to have been introduced during the conversion of the source
76       files  to  man page format. To report such errors, see https://www.ker‐
77       nel.org/doc/man-pages/reporting_bugs.html .
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81IEEE/The Open Group                  2013                           WCSDUP(3P)
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