Inline and function pointer example (C++ but that's almost C)

inline_or_funcptr.cpp

// Created on Thu Sep 25 00:23:24 2014
// @author: Danilo de Jesus da Silva Bellini
// Inline and function pointer example (C++ but that's almost C)
//
// g++ inline_or_funcptr.cpp
//
#include <iostream>
using namespace std;

typedef int (*IntOpPtr)(int, int);

int sum(int a, int b){ return a + b; }
int mul(int a, int b){ return a * b; }
int sub(int a, int b){ return a - b; }

inline int apply(IntOpPtr op, int a, int b){ return op(a, b); }

int main(){
  IntOpPtr meths[] = {sum, mul, sub};
  int nmeths = sizeof(meths) / sizeof(IntOpPtr);
  for(int i = 0; i < nmeths; i++)
    cout << apply(meths[i], 5, 7) << endl;
  return 0;
}