mirror of
https://github.com/mpusz/mp-units.git
synced 2026-07-05 08:01:01 +02:00
Mateusz Pusz
7a03123a01
safe_int, constrained, their error policies, and the safe_iN aliases are non-framework add-ons, so their public names move out of mp_units into the mp_units::utility extension tier (next to the representation concepts already there). The headers move to core/include/mp-units/utility/ accordingly but stay in the core component: safe_int reuses the core 128-bit integer toolkit (integral, is_signed_v, int128_t, ...) that also backs the scaling engine, so it bridges to mp_units::detail with a single using-directive rather than relocating or duplicating that toolkit. overflow_policies stays framework (it backs bounded quantity point origins). No deprecation shims: these types are unreleased. Also fixes utility/representation.h, whose public concepts delegated via the unqualified detail::X. That resolved to mp_units::detail only as long as mp_units::utility::detail did not exist; now that constrained/safe_int introduce it, the references are qualified to ::mp_units::detail:: so they stay order-independent (this surfaced only in the module build). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
102 lines
4.0 KiB
C++
102 lines
4.0 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 <catch2/catch_test_macros.hpp>
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#include <mp-units/framework.h>
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#include <mp-units/systems/isq/space_and_time.h>
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#include <mp-units/systems/si.h>
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#include <mp-units/utility/constrained.h>
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#ifdef MP_UNITS_IMPORT_STD
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import std;
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#else
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#include <stdexcept>
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#endif
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using namespace mp_units;
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using namespace mp_units::utility;
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#if MP_UNITS_HOSTED
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// ============================================================================
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// Error policies and violation handler
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// ============================================================================
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// CHECK_THROWS_AS expands to a try/catch where the catch body is unreachable on MSVC Debug
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// because `on_constraint_violation` is [[noreturn]] and the optimizer doesn't elide the
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// dead branch; suppress the resulting C4702 around these specific cases.
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MP_UNITS_DIAGNOSTIC_PUSH
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MP_UNITS_DIAGNOSTIC_IGNORE_UNREACHABLE
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TEST_CASE("constrained error policies", "[constrained]")
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{
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SECTION("throw_policy throws std::domain_error on violation")
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{
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CHECK_THROWS_AS(throw_policy::on_constraint_violation("test"), std::domain_error);
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}
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SECTION("constraint_violation_handler delegates to throw_policy")
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{
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using T = constrained<double, throw_policy>;
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CHECK_THROWS_AS(constraint_violation_handler<T>::on_violation("test"), std::domain_error);
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}
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}
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MP_UNITS_DIAGNOSTIC_POP
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// ============================================================================
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// constrained<double, throw_policy> as quantity_point rep with check_in_range.
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// Only the throwing (out-of-bounds) paths are tested here; in-bounds paths
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// are covered by static_assert tests in test/static/bounded_quantity_point_test.cpp.
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// ============================================================================
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namespace {
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QUANTITY_SPEC(geo_latitude_qs, isq::angular_measure);
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inline constexpr struct geo_equator final :
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absolute_point_origin<geo_latitude_qs,
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check_in_range{-90 * mp_units::si::unit_symbols::deg, 90 * mp_units::si::unit_symbols::deg}> {
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} geo_equator;
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using safe_double = constrained<double, throw_policy>;
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using latitude_qp = quantity_point<geo_latitude_qs[si::unit_symbols::deg], geo_equator, safe_double>;
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} // namespace
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TEST_CASE("constrained as quantity_point representation", "[constrained][quantity_point]")
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{
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using namespace si::unit_symbols;
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SECTION("out-of-range construction throws")
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{
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CHECK_THROWS_AS(latitude_qp(91.0 * geo_latitude_qs[deg], geo_equator), std::domain_error);
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CHECK_THROWS_AS(latitude_qp(-91.0 * geo_latitude_qs[deg], geo_equator), std::domain_error);
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CHECK_THROWS_AS(latitude_qp(180.0 * geo_latitude_qs[deg], geo_equator), std::domain_error);
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}
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SECTION("arithmetic that moves value out of range throws")
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{
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auto pt = latitude_qp(80.0 * geo_latitude_qs[deg], geo_equator);
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CHECK_THROWS_AS(pt += 20.0 * geo_latitude_qs[deg], std::domain_error); // 80 + 20 = 100 > 90
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}
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}
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#endif // MP_UNITS_HOSTED
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