#113 – Conditionally Compiling Code Based on Symbols

In addition to conditionally compiling code based on the DEBUG symbol, you can define your own new symbols and then use the #if directive to indicate that a block of code should only be compiled when that symbol is defined.

For example, let’s assume that you want to easily be able to include/exclude code that does some logging, but you don’t want to necessarily do this in only the Debug configuration.

Select the build configuration in which you want the symbol defined:

Right-click on the project and select Properties.  In the project properties window, click on the Build tab.

Now you can add your own symbol in the “Conditional compilation symbols” textbox:

Finally, use the #if directive to identify code that should only be built when the LOGGING symbol is present.

 static void Main(string[] args)
     DoSomeLogging();   // Only do this in Debug build
    uint x = 0x1234;
    x &= 0x0020;

About Sean
Software developer in the Twin Cities area, passionate about software development and sailing.

One Response to #113 – Conditionally Compiling Code Based on Symbols

  1. Pingback: #117 – Use #define to Define a Symbol « 2,000 Things You Should Know About C#

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: