wcsdup(3p) — Linux manual page

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

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(3p), strdup(3p), wcscpy(3p)

       The Base Definitions volume of POSIX.1‐2017, wchar.h(0p)

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(3P)

Pages that refer to this page: wchar.h(0p), strdup(3p), wcscpy(3p)

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