[libcxx-commits] [libcxx] [libc++] Implement Resolution of LWG 3886 (PR #155356)

[A. Jiang via libcxx-commits]

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@@ -64,6 +64,11 @@ constexpr int test()
         assert(std::move(opt).value_or(Y(3)) == 4);
         assert(!opt);
     }
+    {
+      optional<X> opt;
+      assert(std::move(opt).value_or({Y(3)}) == 4);
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frederick-vs-ja wrote:

I wonder whether we should test something like `std::move(opt).value_or({arg1, arg2})`...

https://github.com/llvm/llvm-project/pull/155356