callbyreference.c

#include <stdio.h>
// void swap(int *x, int *y)
// {
//     int temp;
//     temp = *x;
//     *x = *y;
//     *y = temp;
// }
// int main()
// {
//     int a = 34;
//     int b = 74;
//     printf("value of a is %d\nvalue of b is %d\n",a,b);
//     swap(&a, &b);
//     printf("swaped value of a is %d\nswaped value of b is %d", a, b);

//     return 0;
// }
// Quick Quiz:
// Given two numbers a and b,  add them then subtract them and assign them to a and b using call by reference.

// a = 4
// b = 3

// after running the function, the values of a and b should be:
// a = 7
// b = 1

#include <stdio.h>

void changeValue(int* address)
{
    *address = 37565;
}

int main()
{
    int a = 34, b =56;
    printf("The value of a now is %d\n", a);
    changeValue(&a);
    printf("The value of a now is %d\n", a);
    return 0;
}