this post was submitted on 12 Nov 2024
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Rust
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I'm actually surprised there is no specification. It's how I thought languages were written: spec first, implementation later. Do RFCs serve this purpose?
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That's actually not how any language has ever been written, though it's easy to get that impression from how much the C and C++ communities emphasize their formal specifications.
But in fact, both languages were in production use for over a decade before they had a formal spec. And languages with formal specifications are actually a tiny minority of programming languages.