C Programming Tutorial - 42- Pass by Reference vs Pass by Value

#include <stdio.h>
void passByValue(int i); (Prototype)
void passByAddress(int*i);
int main()
{
    int coffee = 20; (pass this value through 2 functions)
    passByValue(coffee);
    printf("Passing by value, coffee is now %d\n", coffee);
    
passByAddress(&coffee); ( here we have to toss in the memory address to function)
    printf("Passing by address, coffee is now %d\n", coffee);
    return 0;
}
void passByValue(int i){ (passed the variable)
    i = 99;
    return;
}
void passByAddress(int*i) { (pointer - points to a memory address. points to the memory address of coffee)
    *i = 64; (Whenever you do that you have to Dereference it)
    return;
}

Passing by value, coffee is now 20                                                                                                             

Passing by address, coffee is now 64