C++11?

[knapply]

What's the motivation for starting at C++11 now that C++17 (and goodies like if constexpr) is available on all platforms?

[jimhester]

Because many people are still using distributions which do not ship with C++17 compatible compilers and we need to support older toolchains as well.

But nothing precludes you from using C++17 in the rest of your code, we are just not using it in this library.

[knapply]

Got it, fair enough. Thanks so much!