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 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), 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.kernel.org/doc/man-pages/.
GNU 2008-08-12 MEMPCPY(3)
Check Out this Related Man Page
MEMPCPY(3) Linux Programmer's Manual MEMPCPY(3)NAME
mempcpy, wmempcpy - copy memory area
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *mempcpy(void *dest, const void *src, size_t n);
#define _GNU_SOURCE /* See feature_test_macros(7) */
#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 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 3.44 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 2008-08-12 MEMPCPY(3)
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