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POWhat's the false operator in C# good for?
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  1. POWhat's the false operator in C# good for?
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    copied!<p>There are two weird operators in C#:</p> <ul> <li>the <a href="http://msdn.microsoft.com/en-us/library/6x6y6z4d.aspx" rel="noreferrer">true operator</a></li> <li>the <a href="http://msdn.microsoft.com/en-us/library/6292hy1k.aspx" rel="noreferrer">false operator</a></li> </ul> <p>If I understand this right these operators can be used in types which I want to use instead of a boolean expression and where I don't want to provide an implicit conversion to bool.</p> <p>Let's say I have a following class:</p> <pre><code> public class MyType { public readonly int Value; public MyType(int value) { Value = value; } public static bool operator true (MyType mt) { return mt.Value &gt; 0; } public static bool operator false (MyType mt) { return mt.Value &lt; 0; } } </code></pre> <p>So I can write the following code:</p> <pre><code> MyType mTrue = new MyType(100); MyType mFalse = new MyType(-100); MyType mDontKnow = new MyType(0); if (mTrue) { // Do something. } while (mFalse) { // Do something else. } do { // Another code comes here. } while (mDontKnow) </code></pre> <p>However for all the examples above only the true operator is executed. So what's the false operator in C# good for?</p> <p><em>Note: More examples can be found <a href="http://www.java2s.com/Tutorial/CSharp/0160__Operator-Overload/truefalseoperatorforComplex.htm" rel="noreferrer">here</a>, <a href="http://www.java2s.com/Tutorial/CSharp/0160__Operator-Overload/OverloadtrueandfalseforTwoDimension.htm" rel="noreferrer">here</a> and <a href="http://www.java2s.com/Tutorial/CSharp/0160__Operator-Overload/trueandfalseoperator.htm" rel="noreferrer">here</a>.</em></p>
 

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