Would definitely be more useful if you could actually materialize the eventual result into something that's visible at runtime.
If there was reflection, it would be useful to talk about class names, function names, etc, at compile time.
If there was reflection, it would be useful to talk about class names, function names, etc, at compile time.
template<class E> requires std::is_enum_v<E> constexpr std::string_view joinedEnum() {
constexpr auto generate = [] -> std::string {
return []<template<class...> class L, class... D>(L<D...>) {
std::string str;
(((str += (str.empty() ? "" : ", ")) += D::name), ...);
return str;
}(boost::describe::describe_enumerators<E>());
};
static constexpr auto arr = [&] {
constexpr std::size_t N = generate().size();
std::array<char, N> arr;
std::char_traits<char>::copy(arr.data(), generate().data(), N);
return arr;
}();
return std::string_view(arr);
}