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Linux 2.6 - man page for wmempcpy (linux section 3)

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

NAME
       mempcpy, wmempcpy  - copy memory area

SYNOPSIS
       #define _GNU_SOURCE
       #include <string.h>

       void *mempcpy(void *dest, const void *src, size_t n);

       #define _GNU_SOURCE
       #include <wchar.h>

       wchar_t *wmempcpy(wchar_t *dest, const wchar_t *src, size_t n);

DESCRIPTION
       The  mempcpy()  function is nearly identical to the memcpy(3) function.	It copies n bytes
       from the object beginning at src into the object pointed  to  by  dest.	 But  instead  of
       returning  the  value  of dest it returns a pointer to the byte following the last written
       byte.

       This function is useful in situations where a number of objects shall be copied to consec-
       utive memory positions.

       The  wmempcpy()	function  is identical but takes wchar_t type arguments and copies n wide
       characters.

RETURN VALUE
       dest + n.

VERSIONS
       mempcpy() first appeared in glibc in version 2.1.

CONFORMING TO
       This function is a GNU extension.

EXAMPLE
       void *
       combine(void *o1, size_t s1, void *o2, size_t s2)
       {
	   void *result = malloc(s1 + s2);
	   if (result != NULL)
	       mempcpy(mempcpy(result, o1, s1), o2, s2);
	   return result;
       }

SEE ALSO
       memccpy(3), memcpy(3), memmove(3), wmemcpy(3), feature_test_macros(7)

COLOPHON
       This page is part of release 3.27 of the Linux man-pages project.  A  description  of  the
       project,   and	information  about  reporting  bugs,  can  be  found  at  http://www.ker-
       nel.org/doc/man-pages/.

GNU					    2008-08-12				       MEMPCPY(3)


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