xo-unit: + scaled_unit.is_natural()

2024-05-07 11:51:32 -04:00 · 2024-05-07 11:51:32 -04:00 · e72760925f
commit e72760925f
parent 2a63780235
2 changed files with 5 additions and 0 deletions
--- a/docs/implementation.rst
+++ b/docs/implementation.rst
--- a/include/xo/unit/scaled_unit.hpp
+++ b/include/xo/unit/scaled_unit.hpp
@ -29,6 +29,11 @@ namespace xo {
                                   1.0 / outer_scale_sq_);
            }

+            /** @brief true iff scaled unit can be faithfully represented by a @ref natural_unit **/
+            constexpr bool is_natural() const {
+                return (outer_scale_factor_ = OuterScale(1) && (outer_scale_sq_ == 1.0));
+            }
+
        public: /* need public members so that a scaled_unit instance can be a non-type template parameter (a structural type) */

            natural_unit<Int> natural_unit_;