1. #include<stdio.h>
    2. int sum(int a ,int b){
    3.     return a+b;
    4. }
    6. int minus(int a ,int b){
    7.     return a-b;
    8. }
    10. int compute_func(int(func_ptr)(int ,int ) ,int a ,int b){
    11.     return func_ptr(a,b);
    12. }
    14. int main(int argc, char *argv[])
    15. {
    16.     printf("5+3=%d\n",compute_func(sum,5,3));
    18.     printf("5-3=%d\n",compute_func(minus,5,3));
    20. }