Question

How to use #if and #elif to check a preprocessor expression in C#

Answer 1

#define DEBUG
#undef PRODUCTION

using System;

class Program
{
  static void Main(string[] args)
  {
    #if (DEBUG)
        Console.WriteLine("DEBUG defined");
    #elif (PRODUCTION)
        Console.WriteLine("PRODUCTION defined");
    #endif
  }
}



/*
run:

DEBUG defined

*/

 

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