The method for utilizing customized preprocessor directives in .Net Core is as follows: 1. Define the preprocessor directive using the #define directive followed by the identifier. 2. Use the #if directive to test for the existence of the preprocessor directive. 3. Define the conditional code that should be executed if the preprocessor directive is defined. 4. Use the #else and #endif directives to define the code that should be executed if the preprocessor directive is not defined. 5. To pass the preprocessor directive through to the compiler, use the -define command-line option or the DefineConstants property of the C# compiler in Visual Studio.
For example:
#define DEBUG
#if DEBUG
// code that should be executed if the DEBUG directive is defined
Console.WriteLine("Debug mode is on.");
#else
// code that should be executed if the DEBUG directive is not defined
Console.WriteLine("Debug mode is off.");
#endif
To pass the DEBUG preprocessor directive through to the compiler, use the following command-line option:
dotnet build -define:DEBUG
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Asked: 2023-05-05 18:36:24 +0000
Seen: 8 times
Last updated: May 05 '23
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