Initialize thread local with const{}.

m-ou-se · m-ou-se · commit dc827183cb48 · 2022-04-07T11:31:16.000+02:00
diff --git a/library/std/src/sys/unix/locks/futex.rs b/library/std/src/sys/unix/locks/futex.rs
@@ -253,6 +253,6 @@ impl ReentrantMutex {
 /// This can be used as a non-null usize-sized ID.
 pub fn current_thread_unique_ptr() -> usize {
     // Use a non-drop type to make sure it's still available during thread destruction.
-    thread_local! { static X: u8 = 0 }
+    thread_local! { static X: u8 = const { 0 } }
     X.with(|x| <*const _>::addr(x))
 }

Original file line number	Diff line number	Diff line change
`@@ -253,6 +253,6 @@ impl ReentrantMutex {`
`253`	`253`	`/// This can be used as a non-null usize-sized ID.`
`254`	`254`	`pub fn current_thread_unique_ptr() -> usize {`
`255`	`255`	`// Use a non-drop type to make sure it's still available during thread destruction.`
`256`		`- thread_local! { static X: u8 = 0 }`
	`256`	`+ thread_local! { static X: u8 = const { 0 } }`
`257`	`257`	`X.with(\|x\| <*const _>::addr(x))`
`258`	`258`	`}`