forked from mpusz/mp-units
65 lines
3.6 KiB
C++
65 lines
3.6 KiB
C++
// The MIT License (MIT)
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//
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// Copyright (c) 2018 Mateusz Pusz
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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// !!! Before you commit any changes to this file please make sure to check if it !!!
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// !!! renders correctly in the documentation "Examples" section. !!!
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// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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#include <mp-units/compat_macros.h>
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#include <iostream>
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#ifdef MP_UNITS_MODULES
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import mp_units;
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#else
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#include <mp-units/format.h>
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#include <mp-units/systems/si/si.h>
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#endif
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template<class T>
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requires mp_units::is_scalar<T>
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inline constexpr bool mp_units::is_vector<T> = true;
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int main()
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{
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using namespace mp_units;
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using namespace mp_units::si;
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using namespace mp_units::si::unit_symbols;
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std::cout << "The seven defining constants of the SI and the seven corresponding units they define:\n";
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std::cout << MP_UNITS_STD_FMT::format("- hyperfine transition frequency of Cs: {} = {:{%N:.0} %U}\n",
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1. * si2019::hyperfine_structure_transition_frequency_of_cs,
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(1. * si2019::hyperfine_structure_transition_frequency_of_cs).in(Hz));
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std::cout << MP_UNITS_STD_FMT::format("- speed of light in vacuum: {} = {:{%N:.0} %U}\n",
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1. * si2019::speed_of_light_in_vacuum,
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(1. * si2019::speed_of_light_in_vacuum).in(m / s));
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std::cout << MP_UNITS_STD_FMT::format("- Planck constant: {} = {:{%N:.8e} %U}\n",
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1. * si2019::planck_constant, (1. * si2019::planck_constant).in(J * s));
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std::cout << MP_UNITS_STD_FMT::format("- elementary charge: {} = {:{%N:.9e} %U}\n",
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1. * si2019::elementary_charge, (1. * si2019::elementary_charge).in(C));
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std::cout << MP_UNITS_STD_FMT::format("- Boltzmann constant: {} = {:{%N:.6e} %U}\n",
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1. * si2019::boltzmann_constant, (1. * si2019::boltzmann_constant).in(J / K));
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std::cout << MP_UNITS_STD_FMT::format("- Avogadro constant: {} = {:{%N:.8e} %U}\n",
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1. * si2019::avogadro_constant, (1. * si2019::avogadro_constant).in(one / mol));
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std::cout << MP_UNITS_STD_FMT::format("- luminous efficacy: {} = {}\n",
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1. * si2019::luminous_efficacy, (1. * si2019::luminous_efficacy).in(lm / W));
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}
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