forked from mpusz/mp-units
63 lines
2.9 KiB
C++
63 lines
2.9 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/format.h>
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#include <mp-units/ostream.h>
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#include <mp-units/systems/international/international.h>
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#include <mp-units/systems/isq/isq.h>
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#include <mp-units/systems/si/si.h>
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#include <iostream>
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using namespace mp_units;
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constexpr QuantityOf<isq::speed> auto avg_speed(QuantityOf<isq::length> auto d, QuantityOf<isq::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 mp_units::si::unit_symbols;
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using namespace mp_units::international::unit_symbols;
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constexpr quantity v1 = 110 * km / h;
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constexpr quantity v2 = 70 * mph;
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constexpr quantity v3 = avg_speed(220. * km, 2 * h);
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constexpr quantity v4 = avg_speed(isq::distance(140. * mi), 2 * isq::duration[h]);
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constexpr quantity v5 = v3.in(m / s);
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constexpr quantity v6 = value_cast<m / s>(v4);
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constexpr quantity v7 = value_cast<int>(v6);
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std::cout << v1 << '\n'; // 110 km/h
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std::cout << v2 << '\n'; // 70 mi/h
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std::cout << MP_UNITS_STD_FMT::format("{}", v3) << '\n'; // 110 km/h
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std::cout << MP_UNITS_STD_FMT::format("{:*^14}", v4) << '\n'; // ***70 mi/h****
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std::cout << MP_UNITS_STD_FMT::format("{:%Q in %q}", v5) << '\n'; // 30.5556 in m/s
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std::cout << MP_UNITS_STD_FMT::format("{0:%Q} in {0:%q}", v6) << '\n'; // 31.2928 in m/s
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std::cout << MP_UNITS_STD_FMT::format("{:%Q}", v7) << '\n'; // 31
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}
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