函数调用运算符重载

#include <iostream>

class Add
{
public:
   int operator()(int a, int b)
   {
      std::cout << "operator()" << std::endl;

      return a + b;
   }
};

int main()
{
   using namespace std;

   Add add;
   int ret = add(10, 20);
   cout << ret << endl;

   /* 匿名对象 */
   cout << Add()(10, 20) << endl;

   return 0;
}

operator()
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operator()
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