Call By Reference in C.

By Aatifa Mugheer

 #include <stdio.h>


void changevalue(int *address)
{
    *address = 456;
}
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;
}

OUTPUT:
The value of a now is 34 The value of a now is 456

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