[libcxx-commits] [libcxx] [libc++] Fix UB in <expected> related to "has value" flag (#68552) (PR #68733)

[Louis Dionne via libcxx-commits]

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@@ -129,7 +129,7 @@ constexpr bool test() {
     std::expected<TrackedMove<true>, TrackedMove<false>> e1(std::in_place, 5);
     std::expected<TrackedMove<true>, TrackedMove<false>> e2(std::unexpect, 10);
 
-    e1.swap(e2);
+    swap(e1, e2);
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ldionne wrote:

Yeah, it's OK. Good find and thanks for fixing!

https://github.com/llvm/llvm-project/pull/68733