On Tue, 22 Sep 2020 at 01:07, Jonathan Wakely via Libstdc++ <libstd...@gcc.gnu.org> wrote: > ># define array_length(arr) (std:size(arr)) > > C++ programmers will not accept a macro for this.
..in other words, the C++17 version of it needs to be an inline function that returns std::size of an array, not a macro. All C++ versions need to be functions, and there should not be any #defines in any of the C++ code. Why should this be array_length and not __array_length? This is a vendor extension, so it should use a name that is reserved for such?
