base_dimension refactored

- now stores dimension's symbol rather than its name
- temperature and current renamed to exactly match their names in SI

src/include/units/base_dimension.h

@@ -38,20 +38,20 @@ namespace units {
  * 
  * Base unit is a measurement unit that is adopted by convention for a base quantity in a specific system of units.
  *
- * Pair of Name and Unit template parameter forms an unique identifier of the base dimension. The same identifiers can
+ * Pair of Symbol and Unit template parameters form an unique identifier of the base dimension. The same identifiers can
- * be multiplied and divided which will result with an adjustment of its factor in an Exponent od a DerivedDimension
+ * be multiplied and divided which will result with an adjustment of its factor in an Exponent of a DerivedDimension
  * (in case of zero the dimension will be simplified and removed from further analysis of current expresion). In case
- * the Name is the same but the Unit differs (i.e. mixing SI and CGS length), there is no automatic simplification but
+ * the Symbol is the same but the Unit differs (i.e. mixing SI and CGS length), there is no automatic simplification but
  * is possible to force it with a quantity_cast.
  *
- * @tparam Name an unique identifier of the base dimension used to provide dimensional analysis support
+ * @tparam Symbol an unique identifier of the base dimension used to provide dimensional analysis support
  * @tparam U a base unit to be used for this base dimension
  */
-template<basic_fixed_string Name, Unit U>
+template<basic_fixed_string Symbol, Unit U>
   requires U::is_named
 struct base_dimension {
   using base_type_workaround = base_dimension; // TODO Replace with is_derived_from_instantiation when fixed
-  static constexpr auto name = Name;
+  static constexpr auto symbol = Symbol;
   using base_unit = U;
 };
 
@@ -60,7 +60,7 @@ struct base_dimension {
 // clang-format off
 template<BaseDimension D1, BaseDimension D2>
 struct base_dimension_less : std::bool_constant<
-    D1::name < D2::name || (D1::name == D2::name && D1::base_unit::symbol < D1::base_unit::symbol)> {};
+    D1::symbol < D2::symbol || (D1::symbol == D2::symbol && D1::base_unit::symbol < D1::base_unit::symbol)> {};
 // clang-format on
 
 }  // namespace units

src/include/units/bits/dimension_op.h

@@ -34,7 +34,7 @@ template<Dimension D1, Dimension D2>
 struct equivalent_dim_impl : std::false_type {};
 
 template<BaseDimension D1, BaseDimension D2>
-struct equivalent_base_dim : std::conjunction<std::bool_constant<D1::name == D2::name>,
+struct equivalent_base_dim : std::conjunction<std::bool_constant<D1::symbol == D2::symbol>,
                                         same_unit_reference<typename D1::base_unit, typename D2::base_unit>> {};
 
 template<BaseDimension D1, BaseDimension D2>

src/include/units/concepts.h

@@ -89,7 +89,7 @@ template<typename T>
 concept Unit = is_derived_from_instantiation<T, scaled_unit>;
 
 // BaseDimension
-template<basic_fixed_string Name, Unit U>
+template<basic_fixed_string Symbol, Unit U>
   requires U::is_named
 struct base_dimension;
 

src/include/units/physical/dimensions.h

@@ -40,25 +40,25 @@ concept QuantityOf = Quantity<Q> && is_derived_from_instantiation<typename Q::di
 // ------------------------ base dimensions -----------------------------
 
 template<Unit U>
-struct dim_length : base_dimension<"length", U> {};
+struct dim_length : base_dimension<"L", U> {};
 
 template<Unit U>
-struct dim_mass : base_dimension<"mass", U> {};
+struct dim_mass : base_dimension<"M", U> {};
 
 template<Unit U>
-struct dim_time : base_dimension<"time", U> {};
+struct dim_time : base_dimension<"T", U> {};
 
 template<Unit U>
-struct dim_current : base_dimension<"current", U> {};
+struct dim_electric_current : base_dimension<"I", U> {};
 
 template<Unit U>
-struct dim_temperature : base_dimension<"temperature", U> {};
+struct dim_thermodynamic_temperature : base_dimension<"Θ", U> {};
 
 template<Unit U>
-struct dim_substance : base_dimension<"substance", U> {};
+struct dim_substance : base_dimension<"N", U> {};
 
 template<Unit U>
-struct dim_luminous_intensity : base_dimension<"luminous intensity", U> {};
+struct dim_luminous_intensity : base_dimension<"J", U> {};
 
 // ------------------------ derived dimensions -----------------------------
 
@@ -86,10 +86,10 @@ struct dim_energy : derived_dimension<Child, U, exp<F, 1>, exp<L, 1>> {};
 template<typename Child, Unit U, DimensionOf<dim_energy> E, DimensionOf<dim_time> T>
 struct dim_power : derived_dimension<Child, U, exp<E, 1>, exp<T, -1>> {};
 
-template<typename Child, Unit U, DimensionOf<dim_power> P, DimensionOf<dim_current> C>
+template<typename Child, Unit U, DimensionOf<dim_power> P, DimensionOf<dim_electric_current> C>
 struct dim_voltage : derived_dimension<Child, U, exp<P, 1>, exp<C, -1>> {};
 
-template<typename Child, Unit U, DimensionOf<dim_time> T, DimensionOf<dim_current> C>
+template<typename Child, Unit U, DimensionOf<dim_time> T, DimensionOf<dim_electric_current> C>
 struct dim_electric_charge : derived_dimension<Child, U, exp<T, 1>, exp<C, 1>> {};
 
 template<typename Child, Unit U, DimensionOf<dim_electric_charge> C, DimensionOf<dim_voltage> V>
@@ -113,10 +113,10 @@ template<typename T>
 concept Time = physical::QuantityOf<T, physical::dim_time>;
 
 template<typename T>
-concept Current = physical::QuantityOf<T, physical::dim_current>;
+concept Current = physical::QuantityOf<T, physical::dim_electric_current>;
 
 template<typename T>
-concept Temperature = physical::QuantityOf<T, physical::dim_temperature>;
+concept Temperature = physical::QuantityOf<T, physical::dim_thermodynamic_temperature>;
 
 template<typename T>
 concept Substance = physical::QuantityOf<T, physical::dim_substance>;

src/include/units/physical/si/current.h

@@ -30,10 +30,10 @@ namespace units::si {
 
 struct ampere : named_unit<ampere, "m", prefix> {};
 
-struct dim_current : physical::dim_current<ampere> {};
+struct dim_electric_current : physical::dim_electric_current<ampere> {};
 
 template<Unit U, Scalar Rep = double>
-using current = quantity<dim_current, U, Rep>;
+using current = quantity<dim_electric_current, U, Rep>;
 
 inline namespace literals {
 

src/include/units/physical/si/electric_charge.h

@@ -31,7 +31,7 @@ namespace units::si {
 
 struct coulomb : named_unit<coulomb, "C", prefix> {};
 
-struct dim_electric_charge : physical::dim_electric_charge<dim_electric_charge, coulomb, dim_time, dim_current> {};
+struct dim_electric_charge : physical::dim_electric_charge<dim_electric_charge, coulomb, dim_time, dim_electric_current> {};
 
 template<Unit U, Scalar Rep = double>
 using electric_charge = quantity<dim_electric_charge, U, Rep>;

src/include/units/physical/si/temperature.h

@@ -29,10 +29,10 @@ namespace units::si {
 
 struct kelvin : named_unit<kelvin, "K", no_prefix> {};
 
-struct dim_temperature : physical::dim_temperature<kelvin> {};
+struct dim_thermodynamic_temperature : physical::dim_thermodynamic_temperature<kelvin> {};
 
 template<Unit U, Scalar Rep = double>
-using temperature = quantity<dim_temperature, U, Rep>;
+using temperature = quantity<dim_thermodynamic_temperature, U, Rep>;
 
 inline namespace literals {
 

src/include/units/physical/si/voltage.h

@@ -32,7 +32,7 @@ namespace units::si {
 
 struct volt : named_unit<volt, "V", prefix> {};
 
-struct dim_voltage : physical::dim_voltage<dim_voltage, volt, dim_power, dim_current> {};
+struct dim_voltage : physical::dim_voltage<dim_voltage, volt, dim_power, dim_electric_current> {};
 
 template<Unit U, Scalar Rep = double>
 using voltage = quantity<dim_voltage, U, Rep>;