While adding some new code to the project I got annoyed by the default C++ file templates that Xcode used. The header it creates contains old-style #ifdef guard and has a .hpp extension. Every time I use the template I obsessively delete all that stuff and start over with a simple #pragma once.
Why not make it the default? Turns out it’s not hard to create custom templates. They go into ~/Library/Developer/Xcode/Templates/File Templates/Source/ and have this kind of structure:
I’ve made the __FILEBASENAME__ files almost empty, because that’s what I want: