fig03_03.cpp

来自「《c＋＋大学教程》源码」· C++ 代码 · 共 46 行

// Fig. 3.3: fig03_03.cpp
// Creating and using a programmer-defined function.
#include <iostream>

using std::cout;
using std::endl;

int square( int );   // function prototype

int main()
{
   // loop 10 times and calculate and output 
   // square of x each time
   for ( int x = 1; x <= 10; x++ )  
      cout << square( x ) << "  ";  // function call

   cout << endl;

   return 0;  // indicates successful termination

} // end main

// square function definition returns square of an integer
int square( int y )  // y is a copy of argument to function
{
   return y * y;     // returns square of y as an int

} // end function square



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