Man page - mempcpy(3)

Packages contains this manual

Package: manpages-dev
apt-get install manpages-dev

Manuals in package:

Available languages:

en fr ja ru ro de

Manual

mempcpy

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
HISTORY
EXAMPLES
SEE ALSO

NAME

mempcpy, wmempcpy - copy memory area

LIBRARY

Standard C library ( libc , -lc )

SYNOPSIS

#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>

void *mempcpy(void dest [restrict . n ], const void src [restrict . n ],
size_t n );

#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <wchar.h>

wchar_t *wmempcpy(wchar_t dest [restrict . n ],
const wchar_t src [restrict . n ],
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 .

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

Image grohtml-108642-1.png

STANDARDS

GNU.

HISTORY

glibc 2.1.

EXAMPLES

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;
}