Théo DELRIEU 4e52277b70 Fix issue #1237 ...

* Make the conversion operator SFINAE correct.
* Workaround a GCC bug with some traits in type_traits.hpp

The first bullet-point implies that every `get`/`get_ptr` be SFINAE
correct as well.

2018-09-20 10:33:14 +02:00

..

nlohmann

Fix issue #1237

2018-09-20 10:33:14 +02:00