mp-units/test/test_tools.cpp

// The MIT License (MIT)
//
// Copyright (c) 2018 Mateusz Pusz
//
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// of this software and associated documentation files (the "Software"), to deal
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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#include "units/bits/ratio_tools.h"

namespace {

  using namespace units;
  
  // static_sign

  static_assert(static_sign<2>::value == 1);
  static_assert(static_sign<-3>::value == -1);
  static_assert(static_sign<0>::value == 1);

  // static_abs

  static_assert(static_abs<2>::value == 2);
  static_assert(static_abs<-3>::value == 3);
  static_assert(static_abs<0>::value == 0);

  // common_ratio

  static_assert(std::is_same_v<common_ratio_t<std::ratio<1>, std::kilo>, std::ratio<1>>);
  static_assert(std::is_same_v<common_ratio_t<std::kilo, std::ratio<1>>, std::ratio<1>>);
  static_assert(std::is_same_v<common_ratio_t<std::ratio<1>, std::milli>, std::milli>);
  static_assert(std::is_same_v<common_ratio_t<std::milli, std::ratio<1>>, std::milli>);

}  // namespace