In this post, we will see how to resolve C-preprocessor macro that would wrap text before/after token with another text Question: Is it possible to create C preprocessor macro that would allow me to call methods on strings(char[]). e.g.: Would ...

In this post, we will see how to resolve How do I distinguish -std=c++17 and -std=gnu++17 at compile time? checking macros? Question: I am using the __int128 extension of g++. The problem with -std=c++17 is that some of the C++ ...

In this post, we will see how to resolve Make simple calculations with C++ pre-processor Question: In my C++ application I configure some features in this way: I would like to check if the sum of the literal values are ...

In this post, we will see how to resolve compare const char * string to uint32_t value at compilation Question: I have version in 2 different descriptions, one as string and the other as value for example: How can I ...

In this post, we will see how to resolve When should I use preprocessor directives over if statements Question: I am sorry if this sounds like a dumb question, I am learning C, and I was wondering: when should I ...

In this post, we will see how to resolve How to get unique sequence of types c++: (A, B, A, B, C) =>(A, B, C) Question: I need to exclude double instantiation, therefore I need to exclude the same types ...

Question: I hope to do the following using X-macro with c++17, but since template parameter does not support trailing comma, it does not work for the std::variant part. Is there someway around it? Best Answer: Yes, there’s a workaround: Without ...

Question: In the LLVM codebase, I see this lines: My LSP (clangd) tells me that LLVM_EXTERNAL_VISIBILITY refers to I can’t figure out the usefulness: why should I #define an identifier without a value, but using that as if it had ...

Question: I appreciate I am being somewhat vague about what is exactly my issue, but I think that the fundamental question is clear. Please bear with me for a moment. In brief, I have a static constexpr array of points ...

Question: Say I have a macro F: and a macro G that takes one or more arguments: and I want to write a macro H that takes one or more arguments that expands to G with F applied to each ...