list0509.cpp

teach yourself C++ in 21 days 第五版

// Listing 5.9 - demonstrates inline functions
#include <iostream>
 
inline int Double(int);
  
int main()
{
   int target;
   using std::cout;
   using std::cin;
   using std::endl;
  
   cout << "Enter a number to work with: ";
   cin >> target;
   cout << "\n";
  
   target = Double(target);
   cout << "Target: " << target << endl;
  
   target = Double(target);
   cout << "Target: " << target << endl;
  
   target = Double(target);
   cout << "Target: " << target << endl;
   return 0;
}
  
int Double(int target)
{
   return 2*target;
}