MEMPCPY(3) | Linux Programmer's Manual | MEMPCPY(3) |
NAME
mempcpy, wmempcpy - copy memory areaSYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
<string.h>
void *mempcpy(void * dest , const void * src , size_t n );
#define _GNU_SOURCE /* See feature_test_macros(7) */
<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 consecutive 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)COLOPHON
This page is part of release 3.53 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/.2008-08-12 | GNU |