rust-lang / rust-lang/reference

Constant Evaluation: clarifications needed

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A-const-eval Language Cleanup
Dominant language
Rust
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Description

I'm quoting this page:

Constant evaluation is the process of computing the result of expressions during compilation.
Q) How does it look like? Please demonstrate

Only a subset of all expressions can be evaluated at compile-time.
Q) Which expressions in particular?

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the Rust Reference's const_eval.html page and inspect the two quoted statements about constant evaluation. Add a clear demonstration of how constant evaluation looks and identify which expressions can be evaluated at compile time, with examples that answer both questions.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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