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//@ compile-flags: -Zdeduplicate-diagnostics=yes
use std::mem::size_of;
fn test<const N: usize>() {}
fn ok<const M: usize>() -> [u8; M] {
[0; { M }]
}
struct Break0<const N: usize>([u8; { N + 1 }]);
//~^ ERROR generic parameters may not be used in const operations
struct Break1<const N: usize>([u8; { { N } }]);
//~^ ERROR generic parameters may not be used in const operations
fn break2<const N: usize>() {
let _: [u8; N + 1];
//~^ ERROR generic parameters may not be used in const operations
}
fn break3<const N: usize>() {
let _ = [0; N + 1];
//~^ ERROR generic parameters may not be used in const operations
}
struct BreakTy0<T>(T, [u8; { size_of::<*mut T>() }]);
//~^ ERROR generic parameters may not be used in const operations
struct BreakTy1<T>(T, [u8; { { size_of::<*mut T>() } }]);
//~^ ERROR generic parameters may not be used in const operations
fn break_ty2<T>() {
let _: [u8; size_of::<*mut T>() + 1];
//~^ ERROR generic parameters may not be used in const operations
}
fn break_ty3<T>() {
let _ = [0; size_of::<*mut T>() + 1];
//~^ WARN cannot use constants which depend on generic parameters in types
//~| WARN this was previously accepted by the compiler but is being phased out
}
trait Foo {
const ASSOC: usize;
}
fn main() {}
|
