Just straight up huffing paint are we.

Explain why? Have you used C99 designated init vs other languages?

E.g. neither Rust, Zig nor C++20 can do this:

Odin gets really close but can't chain initializers (which is ok though):

	▲	phicoh 29 minutes ago \| parent [-]
		In general it would help if you would spend some text on describing what features of C99 are missing in other languages. Giving some code and assume that the reader will figure it out is not very effective. As far as I can tell, Rust can do what it is in your example (which different syntax of course) except for this particular way of initializing an array. To me, that seems like a pretty minor syntax issue to that could be added to Rust if there would be a lot of demand for initializing arrays this way.