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value_cast overloads for ToQ and ToQP

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This commit is contained in:
Yves Delley
2024-05-10 23:13:44 +02:00
parent f74f99b7b1
commit c51baae074
2 changed files with 111 additions and 4 deletions
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21
test/static/quantity_point_test.cpp
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@@ -1692,4 +1692,25 @@ static_assert(value_cast<float>(lvalue_qp).quantity_from_zero().numerical_value_
static_assert(value_cast<m, float>(lvalue_qp).quantity_from_zero().numerical_value_in(m) == 2000.f);
} // namespace lvalue_tests
static_assert(value_cast<quantity<km, int>>(quantity_point{2000 * m}).quantity_from_zero().numerical_value_in(km) == 2);
static_assert(value_cast<quantity_point<km>>(quantity_point{2000 * m}).quantity_from_zero().numerical_value_in(km) ==
2);
static_assert(
!requires(quantity_point<isq::width[m]> qp) { value_cast<quantity<m>>(qp); },
"value_cast shall not cast between different quantity types");
static_assert(
!requires(quantity_point<m> qp) { value_cast<quantity<isq::width[m]>>(qp); },
"value_cast shall not cast between different quantity types");
static_assert(value_cast<quantity_point<m, mean_sea_level>>(quantity_point<km, ground_level>{2 * km})
.quantity_ref_from(mean_sea_level)
.numerical_value_in(m) == 2042);
static_assert(value_cast<quantity_point<cm, mean_sea_level, int>>(quantity_point<mm, ground_level, std::int8_t>{
std::int8_t{100} * mm})
.quantity_ref_from(mean_sea_level)
.numerical_value_in(cm) == 4210);
static_assert(value_cast<quantity_point<mm, ground_level, std::int8_t>>(quantity_point<cm, mean_sea_level>{4210 * cm})
.quantity_ref_from(ground_level)
.numerical_value_in(mm) == 100);
} // namespace