[libcxx-commits] [libcxx] [libc++] Implement LWG2991: variant copy constructor missing noexcept(see below) (PR #230241)

[A. Jiang via libcxx-commits]

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@@ -70,6 +80,11 @@ struct TCopyNTMove {
 
 static_assert(std::is_trivially_copy_constructible<TCopyNTMove>::value, "");
 
+static_assert(std::is_nothrow_copy_constructible_v<std::variant<int, long>>);
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frederick-vs-ja wrote:

I think it's better to move these immediately above or below `test_copy_ctor_sfinae` (which should be in refactored into plain `static_assert`'s in a future PR, though).

https://github.com/llvm/llvm-project/pull/230241