rust/tests/ui/invalid_ref.rs

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#![allow(unused)]
#![feature(core_intrinsics)]
extern crate core;
use std::intrinsics::{init, uninit};
fn main() {
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let x = 1;
unsafe {
ref_to_zeroed_std(&x);
ref_to_zeroed_core(&x);
ref_to_zeroed_intr(&x);
ref_to_uninit_std(&x);
ref_to_uninit_core(&x);
ref_to_uninit_intr(&x);
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some_ref();
std_zeroed_no_ref();
core_zeroed_no_ref();
intr_init_no_ref();
}
}
unsafe fn ref_to_zeroed_std<T: ?Sized>(t: &T) {
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let ref_zero: &T = std::mem::zeroed(); // warning
}
unsafe fn ref_to_zeroed_core<T: ?Sized>(t: &T) {
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let ref_zero: &T = core::mem::zeroed(); // warning
}
unsafe fn ref_to_zeroed_intr<T: ?Sized>(t: &T) {
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let ref_zero: &T = std::intrinsics::init(); // warning
}
unsafe fn ref_to_uninit_std<T: ?Sized>(t: &T) {
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let ref_uninit: &T = std::mem::uninitialized(); // warning
}
unsafe fn ref_to_uninit_core<T: ?Sized>(t: &T) {
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let ref_uninit: &T = core::mem::uninitialized(); // warning
}
unsafe fn ref_to_uninit_intr<T: ?Sized>(t: &T) {
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let ref_uninit: &T = std::intrinsics::uninit(); // warning
}
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fn some_ref() {
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let some_ref = &1;
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}
unsafe fn std_zeroed_no_ref() {
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let mem_zero: usize = std::mem::zeroed(); // no warning
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}
unsafe fn core_zeroed_no_ref() {
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let mem_zero: usize = core::mem::zeroed(); // no warning
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}
unsafe fn intr_init_no_ref() {
let mem_zero: usize = std::intrinsics::init(); // no warning
}