rust/tests/ui/const-generics/legacy-const-generics-bad.stderr
Martin Nordholts 4882ea4b3c rustc_resolve: Improve resolve_const_param_in_non_trivial_anon_const wording
In some contexts, const expressions are OK. Add a `here` to the error
message to clarify this.
2025-06-07 13:01:16 +02:00

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error[E0435]: attempt to use a non-constant value in a constant
--> $DIR/legacy-const-generics-bad.rs:7:35
|
LL | legacy_const_generics::foo(0, a, 2);
| ^ non-constant value
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help: consider using `const` instead of `let`
|
LL - let a = 1;
LL + const a: /* Type */ = 1;
|
error: generic parameters may not be used in const operations
--> $DIR/legacy-const-generics-bad.rs:12:35
|
LL | legacy_const_generics::foo(0, N + 1, 2);
| ^ cannot perform const operation using `N`
|
= help: const parameters may only be used as standalone arguments here, i.e. `N`
= help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0435`.