memmove c

// Sample program to show that memmove() is better than memcpy() 
// when addresses overlap. 
#include <stdio.h> 
#include <string.h> 
int main() 
{ 
   char csrc[100] = "Geeksfor"; 
   memmove(csrc+5, csrc, strlen(csrc)+1); 
   printf("%s", csrc); 
   return 0; 
} 

// Sample program to show that memcpy() can loose data. 
#include <stdio.h> 
#include <string.h> 
int main() 
{ 
   char csrc[100] = "Geeksfor"; 
   memcpy(csrc+5, csrc, strlen(csrc)+1); 
   printf("%s", csrc); 
   return 0; 
}