How to calculate size of a function in c?

Size of any function is calculated as:



Size of function = Size of all local variable which has declared in function + Size of those global variables which has used in function+ Size of all its parameter+ Size of returned value if it is an address. Example:




What is size of calculate function?


int x=2;

int* calculate

void main(){

    int *p,a=0,b=5;

    p=calculate(a,b);

    printf(