// fig05_07.cpp
// inline function that calculates the volume of a cube.
#include <iostream>
using namespace std;

// 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 also acts as the prototype.
inline double cube(double side) {
   return side * side * side; // calculate cube
}

int main() {
   double sideValue; // stores value entered by user 
   cout << "Enter 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) << '\n';
}


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