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// Test use of min_const_fn without feature gate.
const fn foo() -> usize { 0 } // stabilized
trait Foo {
const fn foo() -> u32; //~ ERROR functions in traits cannot be declared const
const fn bar() -> u32 { 0 } //~ ERROR functions in traits cannot be declared const
}
impl Foo for u32 {
const fn foo() -> u32 { 0 } //~ ERROR functions in trait impls cannot be declared const
}
trait Bar {}
impl dyn Bar {
const fn baz() -> u32 { 0 } // stabilized
}
static FOO: usize = foo();
const BAR: usize = foo();
macro_rules! constant {
($n:ident: $t:ty = $v:expr) => {
const $n: $t = $v;
}
}
constant! {
BAZ: usize = foo()
}
fn main() {
let x: [usize; foo()] = [];
}
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