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explain a test

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This commit is contained in:
Ralf Jung 2018-10-10 09:06:44 +02:00
parent 791f464ea0
commit a090edbc03
1 changed files with 2 additions and 0 deletions
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2
tests/run-pass/ref-invalid-ptr.rs
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@ -1,7 +1,9 @@
fn main() {
let x = 2usize as *const u32;
// this is not aligned, but we immediately cast it to a raw ptr so that must be okay
let _y = unsafe { &*x as *const u32 };
let x = 0usize as *const u32;
// this is NULL, but we immediately cast it to a raw ptr so that must be okay
let _y = unsafe { &*x as *const u32 };
}