69     minus(const R & t) noexcept {  in minus()
73     add(const R & t, const R & u) noexcept {  in add()
77     subtract(const R & t, const R & u) noexcept {  in subtract()
81     multiply(const R & t, const R & u) noexcept {  in multiply()
85     divide(const R & t, const R & u) noexcept {  in divide()
89     modulus(const R & t, const R & u) noexcept {  in modulus()
93     less_than(const R & t, const R & u) noexcept {  in less_than()
97     greater_than(const R & t, const R & u) noexcept {  in greater_than()
101     equal(const R & t, const R & u) noexcept {  in equal()
105     left_shift(const R & t, const R & u) noexcept {  in left_shift()
109     right_shift(const R & t, const R & u) noexcept {  in right_shift()
113     bitwise_or(const R & t, const R & u) noexcept {  in bitwise_or()
117     bitwise_xor(const R & t, const R & u) noexcept {  in bitwise_xor()
121     bitwise_and(const R & t, const R & u) noexcept {  in bitwise_and()
125     bitwise_not(const R & t) noexcept {  in bitwise_not()
145 constexpr checked_result<R> minus(const R & t) noexcept {  in minus()
149 constexpr checked_result<R> add(const R & t, const R & u) noexcept {  in add()
153 constexpr checked_result<R> subtract(const R & t, const R & u) noexcept {  in subtract()
157 constexpr checked_result<R> multiply(const R & t, const R & u) noexcept {  in multiply()
161 constexpr checked_result<R> divide(const R & t, const R & u) noexcept {  in divide()
165 constexpr checked_result<R> modulus(const R & t, const R & u) noexcept {  in modulus()
169 constexpr checked_result<bool> less_than(const R & t, const R & u) noexcept {  in less_than()
173 constexpr checked_result<bool> greater_than_equal(const R & t, const R & u) noexcept {  in greater_than_equal()
177 constexpr checked_result<bool> greater_than(const R & t, const R & u) noexcept {  in greater_than()
181 constexpr checked_result<bool> less_than_equal(const R & t, const R & u) noexcept {  in less_than_equal()
185 constexpr checked_result<bool> equal(const R & t, const R & u) noexcept {  in equal()
189 constexpr checked_result<R> left_shift(const R & t, const R & u) noexcept {  in left_shift()
193 constexpr checked_result<R> right_shift(const R & t, const R & u) noexcept {  in right_shift()
197 constexpr checked_result<R> bitwise_or(const R & t, const R & u) noexcept {  in bitwise_or()
201 constexpr checked_result<R> bitwise_xor(const R & t, const R & u) noexcept {  in bitwise_xor()
205 constexpr checked_result<R> bitwise_and(const R & t, const R & u) noexcept {  in bitwise_and()
209 constexpr checked_result<R> bitwise_not(const R & t) noexcept {  in bitwise_not()