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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NAME

12       wcsdup — duplicate a wide-character string
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SYNOPSIS

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

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

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

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

43       None.
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APPLICATION USAGE

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

51       None.
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FUTURE DIRECTIONS

54       None.
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SEE ALSO

57       free(), strdup(), wcscpy()
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59       The Base Definitions volume of POSIX.1‐2017, <wchar.h>
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62       Portions of this text are reprinted and reproduced in  electronic  form
63       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
64       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
65       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
66       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
67       event of any discrepancy between this version and the original IEEE and
68       The Open Group Standard, the original IEEE and The Open Group  Standard
69       is  the  referee document. The original Standard can be obtained online
70       at http://www.opengroup.org/unix/online.html .
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72       Any typographical or formatting errors that appear  in  this  page  are
73       most likely to have been introduced during the conversion of the source
74       files to man page format. To report such errors,  see  https://www.ker‐
75       nel.org/doc/man-pages/reporting_bugs.html .
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79IEEE/The Open Group                  2017                           WCSDUP(3P)
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