1mempcpy(3)                 Linux Programmer's Manual                mempcpy(3)
2
3
4

NAME

6       mempcpy, wmempcpy  - copy memory area
7

SYNOPSIS

9       #define _GNU_SOURCE
10       #include <string.h>
11
12       void *mempcpy(void *dest, const void *src, size_t n);
13
14       #define _GNU_SOURCE
15       #include <wchar.h>
16
17       wchar_t *wmempcpy(wchar_t *dest, const wchar_t *src, size_t n);
18

DESCRIPTION

20       The  mempcpy()  function  is nearly identical to the memcpy() function.
21       It copies n bytes from the object beginning  at  src  into  the  object
22       pointed  to  by  dest.   But  instead of returning the value of dest it
23       returns a pointer to the byte following the last written byte.
24
25       This function is useful in situations where a number of  objects  shall
26       be copied to consecutive memory positions.
27
28       The  wmempcpy()  function is identical but takes wchar_t type arguments
29       and copies n wide characters.
30

RETURN VALUE

32       dest + n .
33

EXAMPLE

35       void *
36       combine (void *o1, size_t s1, void *o2, size_t s2) {
37            void *result = malloc(s1 + s2);
38            if (result != NULL)
39                 mempcpy(mempcpy(result, o1, s1), o2, s2);
40            return result;
41       }
42

CONFORMING TO

44       This function is a GNU extension.
45

SEE ALSO

47       memccpy(3), memcpy(3), memmove(3), wmemcpy(3), feature_test_macros(7)
48
49
50
51GNU                               2003-11-11                        mempcpy(3)