Function compare

src/value.cpp:489–502

template <class F>
static bool compare(const value& x, const value& y, F f)
{
    bool result = false;
    visit_for_compare(x, [&](const auto& a) {
        visit_for_compare(y, [&](const auto& b) {
            if constexpr(std::is_same<decltype(a), decltype(b)>{})
                result = f(std::forward_as_tuple(x.get_key(), compare_decay(a)),
                           std::forward_as_tuple(y.get_key(), compare_decay(b)));
            else
                assert(false); // NOLINT
        });
    });
    return result;
}

value::type_t value::get_type() const
{