forked from mpusz/mp-units
0b87e7c99c
Addresses: - https://github.com/mpusz/units/pull/261#discussion_r596651065 - https://github.com/mpusz/units/pull/261#discussion_r596664550 - https://github.com/mpusz/units/pull/261#discussion_r597132294
60 lines
2.5 KiB
C++
60 lines
2.5 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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#include <units/format.h>
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#include <units/isq/si/international/speed.h>
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#include <units/isq/si/speed.h>
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#include <units/quantity_io.h>
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#include <iostream>
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using namespace units::isq;
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constexpr Speed auto avg_speed(Length auto d, Time auto t)
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{
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return d / t;
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}
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int main()
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{
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using namespace units::isq::si::literals;
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using namespace units::isq::si::references;
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constexpr Speed auto v1 = 110 * (km / h);
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constexpr Speed auto v2 = avg_speed(220_q_km, 2_q_h);
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constexpr Speed auto v3 = avg_speed(si::length<si::international::mile>(140), si::time<si::hour>(2));
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#if UNITS_DOWNCAST_MODE == 0
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constexpr Speed auto v4 = quantity_cast<si::speed<si::metre_per_second>>(v2);
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constexpr Speed auto v5 = quantity_cast<si::dim_speed, si::metre_per_second>(v3);
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#else
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constexpr Speed auto v4 = quantity_cast<si::speed<si::metre_per_second>>(v2);
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constexpr Speed auto v5 = quantity_cast<si::metre_per_second>(v3);
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#endif
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constexpr Speed auto v6 = quantity_cast<int>(v5);
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std::cout << v1 << '\n'; // 110 km/h
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std::cout << fmt::format("{}", v2) << '\n'; // 110 km/h
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std::cout << fmt::format("{:*^14}", v3) << '\n'; // ***70 mi/h****
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std::cout << fmt::format("{:%Q in %q}", v4) << '\n'; // 30.5556 in m/s
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std::cout << fmt::format("{0:%Q} in {0:%q}", v5) << '\n'; // 31.2928 in m/s
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std::cout << fmt::format("{:%Q}", v6) << '\n'; // 31
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}
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