rust/tests/ui/consts/issue-54954.rs
Tomasz Miąsko 67f455afe1 Suppress "erroneous constant used" for constants tainted by errors
When constant evaluation fails because its MIR is tainted by errors,
suppress note indicating that erroneous constant was used, since those
errors have to be fixed regardless of the constant being used or not.
2023-05-15 00:00:00 +00:00

18 lines
334 B
Rust

const ARR_LEN: usize = Tt::const_val::<[i8; 123]>();
//~^ ERROR E0790
trait Tt {
const fn const_val<T: Sized>() -> usize {
//~^ ERROR functions in traits cannot be declared const
core::mem::size_of::<T>()
}
}
fn f(z: [f32; ARR_LEN]) -> [f32; ARR_LEN] {
z
}
fn main() {
let _ = f([1f32; ARR_LEN]);
}