Use a symbol expression. : define « Preprocessing Directives « C# / CSharp Tutorial

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C# / CSharp Tutorial » Preprocessing Directives » define

16.1.3.Use a symbol expression.

#define AAA 

#define BBB 

 

using System; 

 

class MainClass { 

  public static void Main() { 

     

    #if AAA 

      Console.WriteLine("Compiled for AAA version."); 

    #endif 

 

    #if AAA && BBB 

       Console.Error.WriteLine("Testing AAA and BBB version."); 

    #endif 

   

    Console.WriteLine("This is in all versions."); 

  } 

}

Compiled for AAA version.
Testing AAA and BBB version.
This is in all versions.

16.1.define
	16.1.1.	A list of preprocessor commands available in C#:
	16.1.2.	Preprocessing Directives: define
	16.1.3.	Use a symbol expression.
	16.1.4.	Use the Conditional attribute with define

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