explain a test

RalfJung · RalfJung · commit 6f793d9ef350 · 2018-10-10T10:12:22.000+02:00
diff --git a/tests/run-pass/ref-invalid-ptr.rs b/tests/run-pass/ref-invalid-ptr.rs
@@ -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 };
 }

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,9 @@`
`1`	`1`	`fn main() {`
`2`	`2`	`let x = 2usize as *const u32;`
	`3`	`+ // this is not aligned, but we immediately cast it to a raw ptr so that must be okay`
`3`	`4`	`let _y = unsafe { &x as const u32 };`
`4`	`5`
`5`	`6`	`let x = 0usize as *const u32;`
	`7`	`+ // this is NULL, but we immediately cast it to a raw ptr so that must be okay`
`6`	`8`	`let _y = unsafe { &x as const u32 };`
`7`	`9`	`}`