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lower msrv

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nora 2022-04-06 13:58:58 +02:00
parent 7f90bac1b2
commit 381c514b2e
2 changed files with 14 additions and 10 deletions
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22
src/backend.rs
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@ -36,16 +36,20 @@ pub unsafe trait Backend<T> {
fn get_int(s: Self::Stored) -> Self;
}
#[allow(dead_code)] // :/
const fn assert_same_size<A, B>() {
let has_equal_size = mem::size_of::<A>() == mem::size_of::<B>();
assert!(has_equal_size);
}
#[cfg(test)] // todo: this mustn't affect the msrv, fix this later
mod backend_size_asserts {
#[cfg(not(target_pointer_width = "16"))]
const _: () = assert_same_size::<u128, <u128 as Backend<()>>::Stored>();
const _: () = assert_same_size::<u64, <u64 as Backend<()>>::Stored>();
const _: () = assert_same_size::<usize, <usize as Backend<()>>::Stored>();
#[allow(dead_code)] // :/
const fn assert_same_size<A, B>() {
let has_equal_size = mem::size_of::<A>() == mem::size_of::<B>();
assert!(has_equal_size);
}
#[cfg(not(target_pointer_width = "16"))]
const _: () = assert_same_size::<u128, <u128 as Backend<()>>::Stored>();
const _: () = assert_same_size::<u64, <u64 as Backend<()>>::Stored>();
const _: () = assert_same_size::<usize, <usize as Backend<()>>::Stored>();
}
unsafe impl<T> Backend<T> for usize {
type Stored = *mut T;