(Apple) Clang: compiler error workaround.

[psiha]

Unfortunately - Clang is the new MSVC (tm) :/

(if you can add CI tests for Android and iOS or atleast OSX)

[psiha]

for example - then you'll catch that you also need things like:

#include <bit>
#if defined( __ANDROID__ ) || defined( __APPLE__ )
#include <boost/integer/static_log2.hpp>
namespace std
{
    template < typename Target >
    constexpr auto bit_cast ( auto const &       source ) noexcept { return __builtin_bit_cast( Target, source );   }
    consteval auto bit_width( auto         const value  ) noexcept { return boost::static_log2< value >::value + 1; }
} // namespace std
#endif

;)

[psiha]

you're also missing include for unwrap_ref_decay in 'some' place

[jfalcou]

The bits part is probably just a libcpp issue. We had it with EVE and we added a clang+libcpp CI instance. We can start with that.

[jfalcou]

For the OS X thing, I'll need to see what GA or CircleCI provides

[psiha]

The bits part is probably just a libcpp issue. We had it with EVE and we added a clang+libcpp CI instance. We can start with that.

Yes it is a libcpp issue - Apple is especially notorious here - as they use 'random internal' (and old) commits for their official compiler and cpp runtime releases - so they (and Android and sometimes even Emscripten) require special testing ('latest Clang' is simply just not enough)

[jfalcou]

I added #52 to track that