1MEMPCPY(3)                 Linux Programmer's Manual                MEMPCPY(3)
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NAME

6       mempcpy, wmempcpy  - copy memory area
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SYNOPSIS

9       #define _GNU_SOURCE         /* See feature_test_macros(7) */
10       #include <string.h>
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12       void *mempcpy(void *dest, const void *src, size_t n);
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14       #define _GNU_SOURCE         /* See feature_test_macros(7) */
15       #include <wchar.h>
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17       wchar_t *wmempcpy(wchar_t *dest, const wchar_t *src, size_t n);
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DESCRIPTION

20       The  mempcpy()  function is nearly identical to the memcpy(3) 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.
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25       This function is useful in situations where a number of  objects  shall
26       be copied to consecutive memory positions.
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28       The  wmempcpy()  function is identical but takes wchar_t type arguments
29       and copies n wide characters.
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RETURN VALUE

32       dest + n.
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VERSIONS

35       mempcpy() first appeared in glibc in version 2.1.
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CONFORMING TO

38       This function is a GNU extension.
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EXAMPLE

41       void *
42       combine(void *o1, size_t s1, void *o2, size_t s2)
43       {
44           void *result = malloc(s1 + s2);
45           if (result != NULL)
46               mempcpy(mempcpy(result, o1, s1), o2, s2);
47           return result;
48       }
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SEE ALSO

51       memccpy(3), memcpy(3), memmove(3), wmemcpy(3)
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COLOPHON

54       This page is part of release 3.53 of the Linux  man-pages  project.   A
55       description  of  the project, and information about reporting bugs, can
56       be found at http://www.kernel.org/doc/man-pages/.
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60GNU                               2008-08-12                        MEMPCPY(3)
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