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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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WCSDUP(3P) POSIX Programmer's Manual WCSDUP(3P)
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.
wcsdup — duplicate a wide-character string
#include <wchar.h>
wchar_t *wcsdup(const wchar_t *string);
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.
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.
The wcsdup() function shall fail if:
ENOMEM Memory large enough for the duplicate string could not be
allocated.
The following sections are informative.
None.
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.
None.
None.
free(3p), strdup(3p), wcscpy(3p)
The Base Definitions volume of POSIX.1‐2008, wchar.h(0p)
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 Electrical 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.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 WCSDUP(3P)
Pages that refer to this page: wchar.h(0p), strdup(3p), wcscpy(3p)
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