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memmove

From cppreference.com
< c‎ | string‎ | byte
Defined in header <string.h>
void* memmove( void* dest, const void* src, size_t count );

Copies count characters from the object pointed to by src to the object pointed to by dest. The objects may overlap: copying takes place as if the characters were copied to a temporary character array and then the characters were copied from the array to dest.

Contents

[edit] Parameters

dest - pointer to the memory location to copy to
src - pointer to the memory location to copy from
count - number of bytes to copy

[edit] Return value

dest

[edit] Example

#include <stdio.h>    /* puts()    */
#include <string.h>   /* memmove() */
 
int main ()
{
    char str[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    puts (str);
    memmove (str+6,str+3,7);
    puts (str);
    return 0;
}

Output:

ABCDEFGHIJKLMNOPQRSTUVWXYZ
ABCDEFDEFGHIJNOPQRSTUVWXYZ

[edit] See also

copies one buffer to another
(function) [edit]
C++ documentation for memmove