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		<title>C++ Tutorial/Operator Overloading/overload comma operator - История изменений</title>
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		<title> в 14:21, 25 мая 2010</title>
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				<updated>2010-05-25T14:21:17Z</updated>
		
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		<title>Admin: 1 версия:&amp;#32;Импорт контента...</title>
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				<updated>2010-05-25T10:30:37Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия: Импорт контента...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==overload comma for Point==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;#include &amp;lt;iostream&amp;gt;&lt;br /&gt;
using namespace std;&lt;br /&gt;
class Point {&lt;br /&gt;
  int x, y;&lt;br /&gt;
public:&lt;br /&gt;
  Point() {}&lt;br /&gt;
  Point(int px, int py) {&lt;br /&gt;
    x = px;&lt;br /&gt;
    y = py;&lt;br /&gt;
  }&lt;br /&gt;
  void show() {&lt;br /&gt;
    cout &amp;lt;&amp;lt; x &amp;lt;&amp;lt; &amp;quot; &amp;quot;;&lt;br /&gt;
    cout &amp;lt;&amp;lt; y &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
  }&lt;br /&gt;
  Point operator+(Point op2);&lt;br /&gt;
  Point operator,(Point op2);&lt;br /&gt;
};&lt;br /&gt;
// overload comma for Point&lt;br /&gt;
Point Point::operator,(Point op2)&lt;br /&gt;
{&lt;br /&gt;
  Point temp;&lt;br /&gt;
  temp.x = op2.x;&lt;br /&gt;
  temp.y = op2.y;&lt;br /&gt;
  cout &amp;lt;&amp;lt; op2.x &amp;lt;&amp;lt; &amp;quot; &amp;quot; &amp;lt;&amp;lt; op2.y &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
  return temp;&lt;br /&gt;
}&lt;br /&gt;
// Overload + for Point&lt;br /&gt;
Point Point::operator+(Point op2)&lt;br /&gt;
{&lt;br /&gt;
  Point temp;&lt;br /&gt;
  temp.x = op2.x + x;&lt;br /&gt;
  temp.y = op2.y + y;&lt;br /&gt;
  return temp;&lt;br /&gt;
}&lt;br /&gt;
int main()&lt;br /&gt;
{&lt;br /&gt;
  Point ob1(10, 20), ob2( 5, 30), ob3(1, 1);&lt;br /&gt;
  ob1.show();&lt;br /&gt;
  ob2.show();&lt;br /&gt;
  ob3.show();&lt;br /&gt;
  cout &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
  ob1 = (ob1, ob2+ob2, ob3);&lt;br /&gt;
  ob1.show(); // displays 1 1, the value of ob3&lt;br /&gt;
  return 0;&lt;br /&gt;
}&amp;lt;/source&amp;gt;&lt;br /&gt;
&amp;lt;pre class=codeResult&amp;gt;10 20&lt;br /&gt;
5 30&lt;br /&gt;
1 1&lt;br /&gt;
10 60&lt;br /&gt;
1 1&lt;br /&gt;
1 1&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Overloading the Comma Operator==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;#include &amp;lt;iostream&amp;gt;&lt;br /&gt;
using namespace std;&lt;br /&gt;
   &lt;br /&gt;
class loc {&lt;br /&gt;
  int longitude, latitude;&lt;br /&gt;
public:&lt;br /&gt;
  loc() {}&lt;br /&gt;
  loc(int lg, int lt) {&lt;br /&gt;
    longitude = lg;&lt;br /&gt;
    latitude = lt;&lt;br /&gt;
  }&lt;br /&gt;
   &lt;br /&gt;
  void show() {&lt;br /&gt;
    cout &amp;lt;&amp;lt; longitude &amp;lt;&amp;lt; &amp;quot; &amp;quot;;&lt;br /&gt;
    cout &amp;lt;&amp;lt; latitude &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
  }&lt;br /&gt;
   &lt;br /&gt;
  loc operator+(loc op2);&lt;br /&gt;
  loc operator,(loc op2);&lt;br /&gt;
};&lt;br /&gt;
   &lt;br /&gt;
// overload comma for loc&lt;br /&gt;
loc loc::operator,(loc op2)&lt;br /&gt;
{&lt;br /&gt;
  loc temp;&lt;br /&gt;
   &lt;br /&gt;
  temp.longitude = op2.longitude;&lt;br /&gt;
  temp.latitude = op2.latitude;&lt;br /&gt;
  cout &amp;lt;&amp;lt; op2.longitude &amp;lt;&amp;lt; &amp;quot; &amp;quot; &amp;lt;&amp;lt; op2.latitude &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
   &lt;br /&gt;
  return temp;&lt;br /&gt;
}&lt;br /&gt;
   &lt;br /&gt;
// Overload + for loc&lt;br /&gt;
loc loc::operator+(loc op2)&lt;br /&gt;
{&lt;br /&gt;
  loc temp;&lt;br /&gt;
   &lt;br /&gt;
  temp.longitude = op2.longitude + longitude;&lt;br /&gt;
  temp.latitude = op2.latitude + latitude;&lt;br /&gt;
   &lt;br /&gt;
  return temp;&lt;br /&gt;
}&lt;br /&gt;
   &lt;br /&gt;
int main()&lt;br /&gt;
{&lt;br /&gt;
  loc ob1(10, 20), ob2( 5, 30), ob3(1, 1);&lt;br /&gt;
   &lt;br /&gt;
  ob1.show();&lt;br /&gt;
  ob2.show();&lt;br /&gt;
  ob3.show();&lt;br /&gt;
  cout &amp;lt;&amp;lt; &amp;quot;\n&amp;quot;;&lt;br /&gt;
   &lt;br /&gt;
  ob1 = (ob1, ob2+ob2, ob3);&lt;br /&gt;
   &lt;br /&gt;
  ob1.show(); // displays 1 1, the value of ob3&lt;br /&gt;
   &lt;br /&gt;
  return 0;&lt;br /&gt;
}&amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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