text: // 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 <units/physical/dimensions.h>
  #include <units/physical/si/power.h>
  #include <units/physical/si/temperature.h>
  #include <units/quantity.h>
  
  namespace units::physical::si {
  
  struct watt_per_metre_kelvin : unit<watt_per_metre_kelvin> {};
  
  struct dim_thermal_conductivity : physical::dim_thermal_conductivity<dim_thermal_conductivity, watt_per_metre_kelvin, dim_power, dim_length, dim_thermodynamic_temperature> {};
  
  template<Unit U, Scalar Rep = double>
  using thermal_conductivity = quantity<dim_thermal_conductivity, U, Rep>;
  
  inline namespace literals {
  
  // J/K
  constexpr auto operator"" q_W_per_m_K(unsigned long long l) { return thermal_conductivity<watt_per_metre_kelvin, std::int64_t>(l); }
  constexpr auto operator"" q_W_per_m_K(long double l) { return thermal_conductivity<watt_per_metre_kelvin, long double>(l); }
  
  }  // namespace literals
  
  }  // namespace units::physical::si
  