implicit size like std::to_array

[gvollant]

hello,
c++20 std::to_array ( https://en.cppreference.com/w/cpp/container/array/to_array ) don't need explicit size

example :

    constexpr auto a4 = std::to_array<std::pair<int, float>>(
        {{3, 0.0f}, {4, 0.1f}, {4, 0.1e23f}});

When I used frozen, I had to manualy count the number of items.
Is it possible to do automatic count?

[gvollant]

the solution is make_unordered_set

static constexpr auto export_frozen = frozen::make_unordered_set<frozen::string>({  "date_min"sv, "zz","aa","date_max"sv,  "record"sv } );