The #1 of 1.57 stable brings us panic! in const contexts. Lo and behold: #[macro_export] macro_rules! static_assert { ($assert:expr, $message:literal) => { const _: () = assert!($assert, $message); }; } Later in code, for example: static_assert!( mem::size_of::<MyStruct>() ==…

Stabilization of panic! in const context brings us static_assert possibility

p-kraszewski December 5, 2021, 1:38pm 4

... which I did right now. See my pakr-assert-size topic.

1 Like

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