Self_doubt

Question

How computation actually occurs in these type of questions?
For ex:

If I declare a=10,b=20

and pass them f(a-b,a*2,b-a);

Where f has signature like f(int *p,int *q,int *r).How actually things works out if i manipulate are there any temprary variables involved?

Answer 1

store the value of a-b,a*2, b-a in seperate memory locations. pass their memory addresses in p,q,r respectively bcoz call by reference.