point.cpp

来自「《c＋＋大学教程》源码」· C++ 代码 · 共 65 行

// Fig. 10.2: point.cpp
// Point class member-function definitions.
#include <iostream>  

using std::cout;

#include "point.h"   // Point class definition

// default constructor
Point::Point( int xValue, int yValue )
   : x( xValue ), y( yValue )
{
   // empty body 

} // end Point constructor

// set x in coordinate pair
void Point::setX( int xValue )
{
   x = xValue; // no need for validation

} // end function setX

// return x from coordinate pair
int Point::getX() const
{
   return x;

} // end function getX

// set y in coordinate pair
void Point::setY( int yValue )
{
   y = yValue; // no need for validation

} // end function setY

// return y from coordinate pair
int Point::getY() const
{
   return y;

} // end function getY
   
// output Point object
void Point::print() const
{
   cout << '[' << getX() << ", " << getY() << ']';

} // end function print

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