mempcpy(3)

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(size_t n;
              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(size_t n;
              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).
Interface | Attribute | Value
 | Thread safety | MT-Safe

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;
    }

SEE ALSO
memccpy(3), memcpy(3), memmove(3), wmemcpy(3)