Is there a preprocessor macro for hiding code from the Visual Studio Code parser?

If you use VSCode's C/C++ extension, you can define it on your own in .vscode/c_cpp_properties.json:

{ "configurations": [ { "name": "Linux", "intelliSenseMode": "linux-gcc-x64", "compilerPath": "/usr/bin/g++-15", "defines": [ "__VSCODE__=1" ] } ], "version": 4 }

Now edit a file like this:

#ifdef __VSCODE__ constexpr auto x = 1; #else constexpr auto x = 2; #endif static_assert(x == 1);

You will find that in VSCode there is an error squiggle on the static assertion, but if you compile it normally there are no errors.