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//@ check-pass
//! An array must have the correct length.
#![crate_type = "lib"]
#![feature(transmutability)]
#![allow(dead_code, incomplete_features, non_camel_case_types)]
mod assert {
use std::mem::{Assume, TransmuteFrom};
pub fn is_maybe_transmutable<Src, Dst>()
where
Dst: TransmuteFrom<Src, { Assume::SAFETY.and(Assume::VALIDITY) }>
{}
}
fn should_have_len_0() {
type Array = [u8; 0];
#[repr(C)] struct Struct();
assert::is_maybe_transmutable::<Array, Struct>();
assert::is_maybe_transmutable::<Struct, Array>();
}
fn should_have_len_1() {
type Array = [u8; 1];
#[repr(C)] struct Struct(u8);
assert::is_maybe_transmutable::<Array, Struct>();
assert::is_maybe_transmutable::<Struct, Array>();
}
fn should_have_len_2() {
type Array = [u8; 2];
#[repr(C)] struct Struct(u8, u8);
assert::is_maybe_transmutable::<Array, Struct>();
assert::is_maybe_transmutable::<Struct, Array>();
}
fn should_have_len_3() {
type Array = [u8; 3];
#[repr(C)] struct Struct(u8, u8, u8);
assert::is_maybe_transmutable::<Array, Struct>();
assert::is_maybe_transmutable::<Struct, Array>();
}
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