constexpr Additions to the Standard Library
C++17 brings a diverse range of new methods to the constexpr class. We'll talk about them below.
We'll cover the following...
With this enhancement you can work with iterators, std::array, range-based for loops in constexpr contexts.
The main referencing paper is P0031 - Proposal to Add Constexpr Modifiers to reverse_iterator, move_iterator, array, and Range Access.
Have a look at a basic example that ...