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// Regression test for issue #90870.
#![allow(dead_code)]
const fn f(a: &u8, b: &u8) -> bool {
//~^ HELP: add `#![feature(const_cmp)]` to the crate attributes to enable
//~| HELP: add `#![feature(const_cmp)]` to the crate attributes to enable
//~| HELP: add `#![feature(const_cmp)]` to the crate attributes to enable
a == b
//~^ ERROR: cannot call conditionally-const operator in constant functions
//~| ERROR: `PartialEq` is not yet stable as a const trait
//~| HELP: consider dereferencing here
//~| HELP: add `#![feature(const_trait_impl)]` to the crate attributes to enable
}
const fn g(a: &&&&i64, b: &&&&i64) -> bool {
a == b
//~^ ERROR: cannot call conditionally-const operator in constant functions
//~| ERROR: `PartialEq` is not yet stable as a const trait
//~| HELP: consider dereferencing here
//~| HELP: add `#![feature(const_trait_impl)]` to the crate attributes to enable
}
const fn h(mut a: &[u8], mut b: &[u8]) -> bool {
while let ([l, at @ ..], [r, bt @ ..]) = (a, b) {
if l == r {
//~^ ERROR: cannot call conditionally-const operator in constant functions
//~| ERROR: `PartialEq` is not yet stable as a const trait
//~| HELP: consider dereferencing here
//~| HELP: add `#![feature(const_trait_impl)]` to the crate attributes to enable
a = at;
b = bt;
} else {
return false;
}
}
a.is_empty() && b.is_empty()
}
fn main() {}
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