1 #include <iostream>
  2 
  3 void my_memcpy(void *a, void *b, size_t c){ for (size_t i = 0; i < c; i++) { *((char *)a+i) = *((char *)b+i); } }
  4 
  5 int main()
  6 {
  7     char a[50] = "This is a test";
  8     char b[50];
  9     
 10     std::cout << "a = " << a << std::endl;
 11     
 12     my_memcpy(b, a, 50);
 13     
 14     std::cout << "b = " << b << std::endl;
 15     
 16     return 0;
 17 }