#ifndef APP_HELPER_H
#define APP_HELPER_H

#include <array>
#include <functional>
#include <variant>

template<std::size_t N, typename T>
constexpr std::array<T, N> array_fill(const T& value) {
    std::array<T, N> array{};
    array.fill(value);
    return array;
}

template<typename F, std::size_t... I>
constexpr void _static_for_impl(F &&f, std::index_sequence<I...>) {
    (f(std::integral_constant<std::size_t, I>{}), ...);
}

template<std::size_t N, typename F>
constexpr void static_for(F &&f) {
    _static_for_impl(std::forward<F>(f), std::make_index_sequence<N>{});
}

#endif // APP_HELPER_H