Programming

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Parse, don’t validate (lexi-lambda.github.io)

submitted 2 days ago by [email protected] to c/programming

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[–] Corbin 5 points 2 days ago

A list can store zero or more elements. A NonEmpty can store one or more element. That's all.

This overall strategy -- representing the top of a list as a dedicated value -- shows up elsewhere, notably in Forths, where it is called "top of stack" and often stored in a dedicated CPU register.