LWG Issue 2141: common type

[Richard Smith]

You don't seem to have any test coverage outside C++1y mode. Could you move
the tests out of the _LIBCPP_STD_VER > 11 block and switch them from
common_type_t to common_type<...>::type ?


On Sun, Oct 6, 2013 at 9:37 AM, Marshall Clow <mclow.lists at gmail.com> wrote:

> Ref: http://cplusplus.github.io/LWG/lwg-defects.html#2141
>
> Fix common_type to match the suggested implementation in the standard.
> Add tests to make sure it (now) does what it should.
>
> Also, a drive by fix on the tests for is_trivially_copyable. Clang
> recently fixed a bug in the intrinsic that libc++ uses for this type_trait,
> and this exposed an error in the test suite.
>
> Note that most of the change in <type_traits> is from hoisting the
> definition of std::decay from the end of the file to somewhere closer to
> the front.
> That's just a movement of source code - there are no changes to decay.
>
> -- Marshall
>
> Marshall Clow     Idio Software   <mailto:mclow.lists at gmail.com>
>
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