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73 lines
3.2 KiB
C++
73 lines
3.2 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 <mp-units/systems/international.h>
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#include <mp-units/systems/isq/mechanics.h>
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#include <mp-units/systems/isq/space_and_time.h>
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#include <mp-units/systems/si/constants.h>
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#include <mp-units/systems/si/units.h>
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namespace {
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using namespace mp_units;
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using namespace mp_units::international;
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using namespace mp_units::international::unit_symbols;
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// Mass
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static_assert(100'000'000 * isq::mass[lb] == 45'359'237 * isq::mass[si::kilogram]);
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static_assert(1 * isq::mass[lb] == 16 * isq::mass[oz]);
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static_assert(1 * isq::mass[oz] == 16 * isq::mass[dr]);
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static_assert(7'000 * isq::mass[gr] == 1 * isq::mass[lb]);
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// Length
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// https://en.wikipedia.org/wiki/United_States_customary_units#Length
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static_assert(20 * isq::length[twip] == 1 * isq::length[p]);
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static_assert(1000 * isq::length[mil] == 1 * isq::length[in]);
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static_assert(72 * isq::length[p] == 1 * isq::length[in]);
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static_assert(1 * isq::length[P] == 12 * isq::length[p]);
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static_assert(1 * isq::length[in] == 6 * isq::length[P]);
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static_assert(1 * isq::length[ft] == 12 * isq::length[in]);
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static_assert(1 * isq::length[yd] == 3 * isq::length[ft]);
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static_assert(10'000 * isq::length[yd] == 9'144 * isq::length[si::metre]);
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static_assert(1 * isq::length[mi] == 5280 * isq::length[ft]);
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static_assert(1 * isq::length[mi] == 1760 * isq::length[yd]);
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static_assert(1 * isq::length[le] == 15'840 * isq::length[ft]);
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static_assert(1 * isq::length[le] == 5280 * isq::length[yd]);
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// Nautical
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static_assert(1 * isq::length[nmi] == 1852 * isq::length[si::metre]);
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static_assert(1 * isq::speed[kn] == isq::length(1 * nmi) / isq::time(1 * si::hour));
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// Force
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static_assert(1 * isq::force[pdl] ==
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isq::mass(1 * lb) * isq::length(1 * ft) / (isq::time(1 * si::second) * isq::time(1 * si::second)));
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static_assert(1 * isq::force[lbf] == isq::mass(1 * lb) * (1 * si::standard_gravity));
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static_assert(1 * isq::force[kip] == 1000 * isq::force[lbf]);
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// Pressure
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static_assert(1 * isq::pressure[psi] == isq::force(1 * lbf) / isq::area(1 * square(inch)));
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// Power
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static_assert(1 * isq::power[hp] == isq::length(33'000 * ft) * isq::force(1 * lbf) / isq::time(1 * si::minute));
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} // namespace
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