@sschoener@mastodon.gamedev.place I maintain that Pascal's INTERFACE and IMPLEMENTATION parts of its UNITs (I have to uppercase…) is superior still and is what header-only C files try to emulate. I prefer not having 2 files (open) for the same content but that is just me of course, but yes! Having to state out the interface together in a block (header or INTERFACE part) allows both the author and reader of a library to get a quick overview and to see if things still make sense together. Thanks for the write-up!