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



NAME
       mempcpy, wmempcpy  - copy memory area

SYNOPSIS
       #define _GNU_SOURCE
       #include <&lt;string.h>&gt;

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

       #define _GNU_SOURCE
       #include <&lt;wchar.h>&gt;

       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 consecutive memory positions.

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

RETURN VALUE
       dest + n.

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 3.05 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.



GNU                               2003-11-11                        MEMPCPY(3)