xo-unit: + with_units + example

2024-05-04 10:36:03 -04:00 · 2024-05-04 10:36:03 -04:00 · 779e7e0569
commit 779e7e0569
parent 4ee89948d9
2 changed files with 17 additions and 2 deletions
--- a/include/xo/unit/quantity.hpp
+++ b/include/xo/unit/quantity.hpp
@ -227,6 +227,14 @@ namespace xo {
            };
        } /*namespace detail*/

+        template <auto Unit, typename Q1>
+        requires(quantity_concept<Q1>
+                 && Q1::always_constexpr_unit)
+        constexpr auto
+        with_units(const Q1 & x) {
+            return x.template rescale_ext<Unit>();
+        }
+
        template <typename Q1, typename Q2, auto Unit = Q2::s_unit>
        requires (quantity_concept<Q1>
                  && quantity_concept<Q2>