upcastable renamed to upcast_base

src/include/units/bits/tools.h

@@ -108,10 +108,10 @@ namespace units {
   template<Ratio Ratio1, Ratio Ratio2>
   using common_ratio_t = typename common_ratio<Ratio1, Ratio2>::type;
 
-  // upcastable
+  // upcast_base
 
   template<typename BaseType>
-  struct upcastable {
+  struct upcast_base {
     using base_type = BaseType;
   };
 

src/include/units/dimension.h

@@ -87,7 +87,7 @@ namespace units {
   // dimension
 
   template<Exponent... Es>
-  struct dimension : upcastable<dimension<Es...>> {};
+  struct dimension : upcast_base<dimension<Es...>> {};
 
   // is_dimension
   namespace detail {

src/include/units/unit.h

@@ -29,7 +29,7 @@ namespace units {
 
   template<Dimension D, Ratio R>
     requires (R::num > 0)
-  struct unit : upcastable<unit<D, R>> {
+  struct unit : upcast_base<unit<D, R>> {
     using dimension = D;
     using ratio = R;
   };