This is the IDK (Industrial Development Kit) library, part of the ZTD collection. The IDK is a small, useful toolbox of supplementary things, including:

• The ztd.idk core library:
  • A small collection of type traits, optimizations, and other semi-niche utilities for accelerating development.
  • Small, header-only.
  • CMake: ztd::idk
• The ztd.tag_invoke customization point library:
  • Modeled after C++ Proposal P1985.
  • Makes for a single extension point to be written, tag_invoke(...), whose first argument is the name of the extension point to be hooking into. E.g., tag_invoke(tag_t<lua_push>, ...).
  • Tiny, header-only.
  • CMake: ztd::tag_invoke
• The ztd.version configuration macro library:
  • A formalization of the principles found in this post and this post.
  • Mistake-resistant configuration and default-on/off vs. deliberate on/off detection.
  • Infinitesimally tiny, header-only.
  • CMake: ztd::version
• And more!

All of these utilities should be header-only, and come with CMake build files for ease of use. Simply depend on ztd::idk or ztd::tag_invoke. You can find the the library documentation here (https://ztdidk.rtfd.io).