May 20, 2015 · You have two options as to where to define it: Code file level - In the beginning of the file write #define FLAG. You cannot place anything else (other than comments and blank lines) before define directives. As Ron Beyer points out, a …

Oct 8, 2023 · In Visual Studio Solution Explorer, right-click on a project and click Properties. Open the build tab and you will see a field "Conditional compilation symbols". This is a comma-separated list, or space-separated. There are also two checkboxes for commonly used symbols, DEBUG and TRACE.

Aug 2, 2021 · Defines a preprocessing symbol for a source file. You can use this symbol together with #if or #ifdef to compile source code conditionally. The symbol definition remains in effect until it's redefined in the code, or is undefined in the code by an #undef directive.

Jan 14, 2025 · You use the following two preprocessor directives to define or undefine symbols for conditional compilation: #define: Define a symbol. #undef: Undefine a symbol. You use …

So for MSVS 2019 is there a way to define something like #define INT(X) static_cast<int>(X) globally? Project Settings -> C/C++ -> Preprocessor -> Preprocessor definitions. Here you can define symbols that are applied globally to all source code in your project.

Mar 19, 2025 · In the Visual Studio IDE, you can view and edit the properties needed to compile and build a project. This information includes the application name, extension (such as DLL, LIB, EXE), compiler options, linker options, debugger settings, and custom build steps. You can view and modify these properties by using property pages.

Mar 29, 2019 · Preprocessor Directives in C# tell the compiler to process the given information before actual compilation of the program starts. It begins with a hashtag symbol (#) and since these preprocessors are not statements so no semi-colon is appended at the end.

Aug 6, 2020 · In this post, we’ll walk through the basics of C# preprocessor directives. We’ll use keywords like define, if, else, elif, and undef to change our application’s behavior. We’ll also look at some of the predefined preprocessor directives that come with the .NET Framework.

Apr 17, 2013 · The #region and #endregion preprocessor directives come in handy when you are coding inside Visual Studio IDE. They allow you to define a region of code as one single block so that the entire block can be collapsed or expanded.

May 25, 2020 · In the right pane, in the right-hand column of the Preprocessor Definitions property, open the drop-down menu and choose Edit. In the Preprocessor Definitions dialog box, add (one per line), modify, or delete one or more definitions. Choose OK to save your changes. How to define conditional preprocessor define in CMake?