fig18_03.cpp

C程序设计经典教程第5版程序示例,比较适合初级c语言的学生

// Fig. 18.3: fig18_03.cpp
// Using an inline function to calculate the volume of a cube.
#include <iostream>
using std::cout;
using std::cin;
using std::endl;

// Definition of inline function cube. Definition of function appears 
// before function is called, so a function prototype is not required. 
// First line of function definition acts as the prototype.
inline double cube( const double side )                    
{                                                          
   return side * side * side; // calculate the cube of side
} // end function cube                                     

int main()
{
   double sideValue; // stores value entered by user 

   for ( int i = 1; i <= 3; i++ ) 
   {
      cout << "\nEnter the side length of your cube: ";
      cin >> sideValue; // read value from user

      // calculate cube of sideValue and display result
      cout << "Volume of cube with side " 
         << sideValue << " is " << cube( sideValue ) << endl;
   }

   return 0; // indicates successful termination
} // end main