ultrix man page for wcsdup

WCSDUP(3)                                                    Linux Programmer's Manual                                                   WCSDUP(3)

NAME
       wcsdup - duplicate a wide-character string

SYNOPSIS
       #include <wchar.h>

       wchar_t *wcsdup(const wchar_t *s);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       wcsdup():
           Since glibc 2.10:
               _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

DESCRIPTION
       The  wcsdup()  function  is  the wide-character equivalent of the strdup(3) function.  It allocates and returns a new wide-character string
       whose initial contents is a duplicate of the wide-character string pointed to by s.

       Memory for the new wide-character string is obtained with malloc(3), and should be freed with free(3).

RETURN VALUE
       On success, wcsdup() returns a pointer to the new wide-character string.  On error, it returns NULL, with errno set to indicate  the  cause
       of the error.

ERRORS
       ENOMEM Insufficient memory available to allocate duplicate string.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute     | Value   |
       +----------+---------------+---------+
       |wcsdup()  | Thread safety | MT-Safe |
       +----------+---------------+---------+

CONFORMING TO
       POSIX.1-2008.  This function is not specified in POSIX.1-2001, and is not widely available on other systems.

SEE ALSO
       strdup(3), wcscpy(3)

COLOPHON
       This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU                                                                 2017-09-15                                                           WCSDUP(3)