Copies a specified number of bytes from one object to another.

    Format

      #include  <string.h>

      void *memmove  (void *dest, const void *source, size_t size);

1  –  Function Variants

    The memmove function has variants named _memmove32 and _memmove64
    for use with 32-bit and 64-bit pointer sizes, respectively.

2  –  Arguments

 dest

    A pointer to the destination object.

 source

    A pointer to the source object.

 size

    The length of the object to be copied.

3  –  Description

    In Compaq C for OpenVMS Systems, memmove and memcpy perform the
    same function. Programs that require portability should use
    memmove if the area pointed at by dest could overlap the area
    pointed at by source.

4  –  Return Value

    x                  The value of dest.

5  –  Example

        #include <string.h>
        #include <stdio.h>

        main()
        {
           char pdest[14] = "hello   there";
           char *psource = "you are there";

           memmove(pdest, psource, 7);
           printf("%s\n", pdest);
        }

      This example produces the following output:

        you are there