Comment by MITSardine

After trying to wrangle Boost PP and other advertised compile-time libraries such as Boost Hana (which still has some runtime overhead compared to the same logic with hardcoded values), I've finally converged to simply writing C++ files that write other C++ files. Could be Python, but I rather keep the build simple in my C++ project. Code generation is painless with CMake, no idea with other build configuration utilities.