Re: [boost] [histogram][type_traits] strange compile error in boost.histogram for gcc-7.1+ with -std=c++17; possible bug in gcc?

On 30. Oct 2020, at 14:52, Hans Dembinski wrote:

Dear John and the other gurus,

a strange bug was reported for Boost.Histogram. It is a difficult one for which I would like to ask for help. To me it looks like a bug in gcc.

Here is the issue: https://github.com/boostorg/histogram/issues/290

Here is an absolute minimal example which does not include boost at all. https://godbolt.org/z/hrcYao clang is ok, msvc is ok, gcc fails.