Question

Considering the following code fragment:

#include<stdio.h>

#include <stdlib.h>

int base = 0;

static int bonus;

int* demage (int dmg) {

int* ptr = (int*) malloc(sizeof(int));

static int constant = 1;

  *ptr = dmg + constant;

return ptr;

}

int main() {
int HP = 0;

int* dm;

base = 30;

bonus = 20;

for(int i=1; i<4; i++) { HP += i * base; }

dm = demage(10);

HP += bonus - *dm;

printf("Total HP: %i", HP);

return 0;

}

Please indicate which memory segment each of the following values is allocated to.

Answer 1

The genral rule is that local variables are always stored in stack memory and static, global and dynamic variabes use heap memory location.

So in the above code

1. base is global variable -> heap
2. bonus is static -> heap
3. dmg is a function parameter , all parameters are in local scope and hence use stack
4. ptr is dynamically allocated variable -> heap
5. *ptr is the pointer having the dynamic memory allocation -> heap
6. constant is static -> heap
7. Hp is local ->stack
8. dm is also local -> stack