refactor: 💥 Scalar concept renamed to ScalableNumber

Resolves #114

test/unit_test/static/custom_rep_min_req_test.cpp

@@ -86,7 +86,7 @@ using impl_impl = impl_constructible_impl_convertible<T>;
 
 static_assert(std::convertible_to<float, impl_impl<float>>);
 static_assert(std::convertible_to<impl_impl<float>, float>);
-static_assert(units::Scalar<impl_impl<float>>);
+static_assert(units::ScalableNumber<impl_impl<float>>);
 
 template<typename T>
 struct expl_constructible_impl_convertible : scalar_ops<expl_constructible_impl_convertible<T>> {
@@ -101,7 +101,7 @@ using expl_impl = expl_constructible_impl_convertible<T>;
 
 static_assert(!std::convertible_to<float, expl_impl<float>>);
 static_assert(std::convertible_to<expl_impl<float>, float>);
-static_assert(units::Scalar<expl_impl<float>>);
+static_assert(units::ScalableNumber<expl_impl<float>>);
 
 template<typename T>
 struct impl_constructible_expl_convertible : scalar_ops<impl_constructible_expl_convertible<T>> {
@@ -116,7 +116,7 @@ using impl_expl = impl_constructible_expl_convertible<T>;
 
 static_assert(std::convertible_to<float, impl_expl<float>>);
 static_assert(!std::convertible_to<impl_expl<float>, float>);
-static_assert(units::Scalar<impl_expl<float>>);
+static_assert(units::ScalableNumber<impl_expl<float>>);
 
 template<typename T>
 struct expl_constructible_expl_convertible : scalar_ops<expl_constructible_expl_convertible<T>> {
@@ -131,7 +131,7 @@ using expl_expl = expl_constructible_expl_convertible<T>;
 
 static_assert(!std::convertible_to<float, expl_expl<float>>);
 static_assert(!std::convertible_to<expl_expl<float>, float>);
-static_assert(units::Scalar<expl_expl<float>>);
+static_assert(units::ScalableNumber<expl_expl<float>>);
 
 }  // namespace
 
@@ -170,7 +170,7 @@ using namespace units::physical::si;
 
 // constructors
 
-// Quantity from Scalar
+// Quantity from ScalableNumber
 // int <- int
 static_assert(length<metre, int>(expl_impl<int>(1)).count() == 1);
 static_assert(!std::is_constructible_v<length<metre, int>, impl_expl<int>>);

test/unit_test/static/custom_unit_test.cpp

@@ -35,14 +35,14 @@ using namespace units::physical::si;
 struct sq_volt_per_hertz : unit<sq_volt_per_hertz> {};
 struct dim_power_spectral_density : derived_dimension<dim_power_spectral_density, sq_volt_per_hertz, units::exponent<dim_voltage, 2>, units::exponent<dim_frequency, -1>> {};
 
-template<Unit U, Scalar Rep = double>
+template<Unit U, ScalableNumber Rep = double>
 using power_spectral_density = quantity<dim_power_spectral_density, U, Rep>;
 
 // amplitude spectral density
 struct volt_per_sqrt_hertz : unit<volt_per_sqrt_hertz> {};
 struct dim_amplitude_spectral_density : derived_dimension<dim_amplitude_spectral_density, volt_per_sqrt_hertz, units::exponent<dim_voltage, 1>, units::exponent<dim_frequency, -1, 2>> {};
 
-template<Unit U, Scalar Rep = double>
+template<Unit U, ScalableNumber Rep = double>
 using amplitude_spectral_density = quantity<dim_amplitude_spectral_density, U, Rep>;
 
 }