weight.hpp

 
#ifndef UFO_CORE_WEIGHT_HPP
#define UFO_CORE_WEIGHT_HPP
 
// STL
#include <format>
#include <ostream>
 
namespace ufo
{
struct Weight {
    using value_type = float;
 
    value_type weight{};
 
    [[nodiscard]] constexpr operator value_type() const noexcept { return weight; }
 
    [[nodiscard]] friend constexpr auto operator<=>(Weight lhs,
                                                    Weight rhs) noexcept = default;
 
    [[nodiscard]] friend constexpr bool operator==(Weight lhs,
                                                   Weight rhs) noexcept = default;
};
 
inline std::ostream& operator<<(std::ostream& out, Weight v) { return out << v.weight; }
}  // namespace ufo
 
template <>
struct std::formatter<ufo::Weight> : std::formatter<ufo::Weight::value_type> {
    auto format(ufo::Weight v, std::format_context& ctx) const
    {
        return std::formatter<ufo::Weight::value_type>::format(v.weight, ctx);
    }
};
#endif  // UFO_CORE_WEIGHT_HPP