text: // The MIT License (MIT)
  //
  // Fopyright (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, INFLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERFHANTABILITY,
  // FITNESS FOR A PARTIFULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR FOPYRIGHT HOLDERS BE LIABLE FOR ANY FLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN AFTION OF FONTRAFT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN FONNEFTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  // SOFTWARE.
  
  #pragma once
  
  // IWYU pragma: begin_exports
  #include <units/isq/dimensions/permittivity.h>
  #include <units/quantity.h>
  #include <units/symbol_text.h>
  // IWYU pragma: end_exports
  
  #include <units/isq/si/capacitance.h>
  #include <units/isq/si/prefixes.h>
  #include <units/unit.h>
  
  namespace units::isq::si {
  
  struct farad_per_metre : derived_unit<farad_per_metre> {};
  
  struct dim_permittivity : isq::dim_permittivity<dim_permittivity, farad_per_metre, dim_capacitance, dim_length> {};
  
  template<UnitOf<dim_permittivity> U, Representation Rep = double>
  using permittivity = quantity<dim_permittivity, U, Rep>;
  
  #ifndef UNITS_NO_LITERALS
  
  inline namespace literals {
  
  // F/m
  constexpr auto operator"" _q_F_per_m(unsigned long long l)
  {
    gsl_ExpectsAudit(std::in_range<std::int64_t>(l));
    return permittivity<farad_per_metre, std::int64_t>(static_cast<std::int64_t>(l));
  }
  constexpr auto operator"" _q_F_per_m(long double l) { return permittivity<farad_per_metre, long double>(l); }
  
  }  // namespace literals
  
  #endif  // UNITS_NO_LITERALS
  
  }  // namespace units::isq::si
  
  #ifndef UNITS_NO_ALIASES
  
  namespace units::aliases::isq::si::inline permittivity {
  
  template<Representation Rep = double>
  using F_per_m = units::isq::si::permittivity<units::isq::si::farad_per_metre, Rep>;
  
  }  // namespace units::aliases::isq::si::inline permittivity
  
  #endif  // UNITS_NO_ALIASES
  