refactor: si_quantities.h added to improve compile-times

src/systems/CMakeLists.txt

@@ -43,6 +43,7 @@ add_mp_units_module(
             include/mp-units/systems/isq/electromagnetism.h
             include/mp-units/systems/isq/isq.h
             include/mp-units/systems/isq/mechanics.h
+            include/mp-units/systems/isq/si_quantities.h
             include/mp-units/systems/isq/space_and_time.h
             include/mp-units/systems/isq/thermodynamics.h
             include/mp-units/systems/isq_angle/isq_angle.h

src/systems/include/mp-units/systems/hep/hep.h

@@ -22,7 +22,8 @@
 
 #pragma once
 
-#include <mp-units/systems/si/si.h>
+#include <mp-units/systems/si/constants.h>
+#include <mp-units/systems/si/units.h>
 #include <mp-units/unit.h>
 
 template<>
@@ -52,8 +53,6 @@ inline constexpr struct speed_of_light : decltype(si::si2019::speed_of_light_in_
 
 namespace unit_symbols {
 
-using si::unit_symbols::eV;
-
 inline constexpr auto qeV = si::quecto<electronvolt>;
 inline constexpr auto reV = si::ronto<electronvolt>;
 inline constexpr auto yeV = si::yocto<electronvolt>;
@@ -66,6 +65,7 @@ inline constexpr auto ueV = si::micro<electronvolt>;
 inline constexpr auto meV = si::milli<electronvolt>;
 inline constexpr auto ceV = si::centi<electronvolt>;
 inline constexpr auto deV = si::deci<electronvolt>;
+inline constexpr auto eV = electronvolt;
 inline constexpr auto daeV = si::deca<electronvolt>;
 inline constexpr auto heV = si::hecto<electronvolt>;
 inline constexpr auto keV = si::kilo<electronvolt>;

src/systems/include/mp-units/systems/international/international.h

@@ -22,7 +22,8 @@
 
 #pragma once
 
-#include <mp-units/systems/si/si.h>
+#include <mp-units/systems/si/constants.h>
+#include <mp-units/systems/si/units.h>
 #include <mp-units/unit.h>
 
 namespace mp_units::international {

src/systems/include/mp-units/systems/isq/atomic_and_nuclear_physics.h

@@ -23,16 +23,9 @@
 #pragma once
 
 #include <mp-units/quantity_spec.h>
-#include <mp-units/systems/isq/base_quantities.h>
+#include <mp-units/systems/isq/si_quantities.h>
-#include <mp-units/systems/isq/mechanics.h>
-#include <mp-units/systems/isq/space_and_time.h>
 
 namespace mp_units::isq {
 
-// TODO Add all the remaining ISQ definitions
-QUANTITY_SPEC(activity, inverse(duration));
-QUANTITY_SPEC(absorbed_dose, energy / mass);
-QUANTITY_SPEC(ionizing_radiation_quality_factor, dimensionless);
-QUANTITY_SPEC(dose_equivalent, absorbed_dose* ionizing_radiation_quality_factor);
 
 }  // namespace mp_units::isq

src/systems/include/mp-units/systems/isq/base_quantities.h

@@ -43,6 +43,7 @@ inline constexpr struct dim_luminous_intensity : base_dimension<"J"> {} dim_lumi
 QUANTITY_SPEC(length, dim_length);
 QUANTITY_SPEC(mass, dim_mass);
 QUANTITY_SPEC(time, dim_time);
+inline constexpr auto duration = time;
 QUANTITY_SPEC(electric_current, dim_electric_current);
 QUANTITY_SPEC(thermodynamic_temperature, dim_thermodynamic_temperature);
 QUANTITY_SPEC(amount_of_substance, dim_amount_of_substance);

src/systems/include/mp-units/systems/isq/isq.h

@@ -27,6 +27,7 @@
 #include <mp-units/systems/isq/base_quantities.h>
 #include <mp-units/systems/isq/electromagnetism.h>
 #include <mp-units/systems/isq/mechanics.h>
+#include <mp-units/systems/isq/si_quantities.h>
 #include <mp-units/systems/isq/space_and_time.h>
 #include <mp-units/systems/isq/thermodynamics.h>
 // IWYU pragma: end_exports

src/systems/include/mp-units/systems/isq/mechanics.h

@@ -23,7 +23,7 @@
 #pragma once
 
 #include <mp-units/quantity_spec.h>
-#include <mp-units/systems/isq/base_quantities.h>
+#include <mp-units/systems/isq/si_quantities.h>
 #include <mp-units/systems/isq/space_and_time.h>
 
 namespace mp_units::isq {
@@ -88,7 +88,6 @@ QUANTITY_SPEC(kinematic_viscosity, dynamic_viscosity / mass_density);
 QUANTITY_SPEC(surface_tension, force / length, quantity_character::scalar);  // TODO what is a correct equation here?
 QUANTITY_SPEC(power, mass* pow<2>(length) / pow<3>(time));                   // not in ISO 80000
 QUANTITY_SPEC(mechanical_power, power, force* velocity, quantity_character::scalar);
-QUANTITY_SPEC(energy, mass* pow<2>(length) / pow<2>(time));  // differs from ISO 80000 (defined in thermodynamics)
 QUANTITY_SPEC(mechanical_energy, energy);                               // differs from ISO 80000
 QUANTITY_SPEC(potential_energy, mechanical_energy);                     // differs from ISO 80000
 QUANTITY_SPEC(kinetic_energy, mechanical_energy, mass* pow<2>(speed));  // differs from ISO 80000

src/systems/include/mp-units/systems/isq/si_quantities.h

@@ -0,0 +1,52 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2018 Mateusz Pusz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#pragma once
+
+#include <mp-units/quantity_spec.h>
+#include <mp-units/systems/isq/base_quantities.h>
+
+namespace mp_units::isq {
+
+// space and time
+QUANTITY_SPEC(width, length);
+inline constexpr auto breadth = width;
+QUANTITY_SPEC(radius, width);  // differs from ISO 80000
+QUANTITY_SPEC(path_length, length);
+inline constexpr auto arc_length = path_length;
+QUANTITY_SPEC(area, pow<2>(length));
+QUANTITY_SPEC(angular_measure, dimensionless, arc_length / radius, is_kind);
+QUANTITY_SPEC(solid_angular_measure, dimensionless, area / pow<2>(radius), is_kind);
+QUANTITY_SPEC(period_duration, duration);
+inline constexpr auto period = period_duration;
+QUANTITY_SPEC(frequency, inverse(period_duration));
+
+// mechanics
+QUANTITY_SPEC(energy, mass* pow<2>(length) / pow<2>(time));  // differs from ISO 80000 (defined in thermodynamics)
+
+// atomic_and_nuclear_physics
+QUANTITY_SPEC(activity, inverse(duration));
+QUANTITY_SPEC(absorbed_dose, energy / mass);
+QUANTITY_SPEC(ionizing_radiation_quality_factor, dimensionless);
+QUANTITY_SPEC(dose_equivalent, absorbed_dose* ionizing_radiation_quality_factor);
+
+}  // namespace mp_units::isq

src/systems/include/mp-units/systems/isq/space_and_time.h

@@ -23,45 +23,33 @@
 #pragma once
 
 #include <mp-units/quantity_spec.h>
-#include <mp-units/systems/isq/base_quantities.h>
+#include <mp-units/systems/isq/si_quantities.h>
 
 namespace mp_units::isq {
 
-QUANTITY_SPEC(width, length);
-inline constexpr auto breadth = width;
 QUANTITY_SPEC(height, length);
 inline constexpr auto depth = height;
 inline constexpr auto altitude = height;
 QUANTITY_SPEC(thickness, width);
 QUANTITY_SPEC(diameter, width);
-QUANTITY_SPEC(radius, width);  // differs from ISO 80000
-QUANTITY_SPEC(path_length, length);
-inline constexpr auto arc_length = path_length;
 QUANTITY_SPEC(distance, path_length);
 QUANTITY_SPEC(radial_distance, distance);
 QUANTITY_SPEC(position_vector, length, quantity_character::vector);
 QUANTITY_SPEC(displacement, length, quantity_character::vector);
 QUANTITY_SPEC(radius_of_curvature, radius);
 QUANTITY_SPEC(curvature, inverse(radius_of_curvature));
-QUANTITY_SPEC(area, pow<2>(length));
 QUANTITY_SPEC(volume, pow<3>(length));
-QUANTITY_SPEC(angular_measure, dimensionless, arc_length / radius, is_kind);
 QUANTITY_SPEC(rotational_displacement, angular_measure, path_length / radius);
 inline constexpr auto angular_displacement = rotational_displacement;
 QUANTITY_SPEC(phase_angle, angular_measure);
-QUANTITY_SPEC(solid_angular_measure, dimensionless, area / pow<2>(radius), is_kind);
-inline constexpr auto duration = time;
 QUANTITY_SPEC(speed, length / time);                         // differs from ISO 80000
 QUANTITY_SPEC(velocity, speed, position_vector / duration);  // vector  // differs from ISO 80000
 QUANTITY_SPEC(acceleration, velocity / duration);            // vector
 QUANTITY_SPEC(acceleration_of_free_fall, acceleration);      // not in ISO 80000
 QUANTITY_SPEC(angular_velocity, angular_displacement / duration, quantity_character::vector);
 QUANTITY_SPEC(angular_acceleration, angular_velocity / duration);
-QUANTITY_SPEC(period_duration, duration);
-inline constexpr auto period = period_duration;
 QUANTITY_SPEC(time_constant, duration);
 QUANTITY_SPEC(rotation, dimensionless);
-QUANTITY_SPEC(frequency, inverse(period_duration));
 QUANTITY_SPEC(rotational_frequency, rotation / duration);
 QUANTITY_SPEC(angular_frequency, phase_angle / duration);
 QUANTITY_SPEC(wavelength, length);

src/systems/include/mp-units/systems/isq/thermodynamics.h

@@ -23,9 +23,7 @@
 #pragma once
 
 #include <mp-units/quantity_spec.h>
-#include <mp-units/systems/isq/base_quantities.h>
+#include <mp-units/systems/isq/si_quantities.h>
-#include <mp-units/systems/isq/mechanics.h>
-#include <mp-units/systems/isq/space_and_time.h>
 
 namespace mp_units::isq {
 

src/systems/include/mp-units/systems/si/units.h

@@ -23,9 +23,7 @@
 #pragma once
 
 #include <mp-units/quantity_point.h>
-#include <mp-units/systems/isq/atomic_and_nuclear_physics.h>
+#include <mp-units/systems/isq/si_quantities.h>
-#include <mp-units/systems/isq/base_quantities.h>
-#include <mp-units/systems/isq/space_and_time.h>
 #include <mp-units/systems/si/prefixes.h>
 #include <mp-units/unit.h>