arrayBuilder.h

#pragma once
 
#include <array>
 
namespace TuringSim::Utils {
 
    template <typename T, size_t N>
    class ArrayBuilder {
    private:
        template<typename F, size_t... Is>
        constexpr static std::array<T, N> _fromFunction(F f, std::index_sequence<Is...>) {
            static_assert(N == sizeof...(Is));
            return {{f(Is)...}};
        }
 
    public:
        template<typename F>
        constexpr static std::array<T, N> fromFunction(F f) {
            return ArrayBuilder<T, N>::_fromFunction<>(f, std::make_index_sequence<N>());
        }
    };
}