enum to string in modern C++ (C++14) and future C++17

Yet another recurrent duplicated question:

• 2008 c Easy way to use variables of enum types as string in C?


• 2008 c++ How to easily map c++ enums to strings


• 2008 c++ Making something both a C identifier and a string?


• 2008 c++ Is there a simple script to convert C++ enum to string?


• 2009 c++ How to use enums as flags in C++?


• 2011 c++ How to convert an enum type variable to a string?


• 2011 c++ Enum to String C++


• 2011 c++ How to convert an enum type variable to a string?


• 2012 c How to convert enum names to string in c


• 2013 c Stringifying an conditionally compiled enum in C

But after reading many answers, I did not yet find any:

• Elegant way using C++11/C++14 new features


• Or something ready-to-use in Boost


• Else something planned for C++17

Please do not provide C macro-based answers if possible.

EDIT: As pointed out by Vittorio Romeo and PlasmaHH, we have to use macro-based solutions for many years (C++17 release + compilers implementation + projects adoption). Therefore unprecedented awesome macro-based answers can be provided. But please be exhaustive, realize a state of the art and provide tested C++14-friendly snippets (avoid invaluable duplication of other answers and basic link).

For instance a replacement of the below code (without maintenance of enum/string mapping).

^{You can compile and execute it on Coliru.}

#include <cstdint>  // for std::uint_fast8_t
#include <array>
#include <string>
#include <iostream>

enum class MyEnum : std::uint_fast8_t {
   AAA,
   BBB,
   CCC,
};

std::array<std::string,3> MyEnumStrings { 
   "AAA", 
   "BBB", 
   "CCC"
};

int main()
{
   std::cout << MyEnumStrings[ static_cast<std::size_t>(MyEnum::AAA) ] <<'\n';
}