c - Copying a pointer for bit operations -

i have function passes in struct , instead of doing bit manipulations on arr want create copy. how can make copy of element of array of unsigned ints bit manipulations on?

unsigned int * arr = cs->arr; // cs->arr set unsigned int * arr; unsigned int copy; memcpy(copy,arr[0], sizeof(unsigned int)); // copy copy first element, int = 0; while(copy != 0) {            += copy & 1;     copy >>= 1; } return i; 

thank you!

you dont need memcopy. simple array access enough:

unsigned int copy = cs->arr[0]; int = 0; while(copy != 0) {             += copy & 1;     copy >>= 1; } return i;