On Sat, 1 Jun 2019 at 01:24, Ed Smith-Rowland via libstdc++ <libstd...@gcc.gnu.org> wrote: > > Greetings, > > Iterators for <array> and <string_view> are usabe in a constexpr context > since C++2017. > > This just adds a compile test to make sure and check a box for C++20 > p0858 - ConstexprIterator requirements.
Those tests don't use the iterators in a constexpr context. To do that, maybe do those std::copy operations in a constexpr function and then initialize a constexpr variable with the result of a call to that function?
