[libcxx-dev] test/std/utilities/template.bitset/bitset.cons/string_ctor.pass.cpp

[Casey Carter via libcxx-dev]

The subject test includes this function:

void test_for_non_eager_instantiation() {
    // Ensure we don't accidentally instantiate `std::basic_string<Nonsense>`
    // since it may not be well formed and can cause an error in the
    // non-immediate context.
    static_assert(!std::is_constructible<std::bitset<3>, Nonsense*>::value, "");
    static_assert(!std::is_constructible<std::bitset<3>, Nonsense*,
size_t, Nonsense&, Nonsense&>::value, "");
}


which requires nonstandard behavior. Should these assertions be
libc++-specific? (Should someone file an LWG issue to standardize the
expected behavior?)
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