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Only test pi if float is smaller than long double

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This commit is contained in:
Chip Hogg
2022-01-28 20:44:29 +00:00
parent 243238b3fa
commit 2384276ae0
1 changed files with 9 additions and 7 deletions
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16
test/unit_test/runtime/magnitude_test.cpp
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@@ -163,15 +163,17 @@ TEST_CASE("magnitude converts to numerical value")
SECTION("pi to arbitrary power performs computations in most accurate type at compile time") SECTION("pi to arbitrary power performs computations in most accurate type at compile time")
{ {
constexpr auto pi_cubed = pi_to_the<3>(); if constexpr (sizeof(float) < sizeof(long double)) {
constexpr auto pi_cubed = pi_to_the<3>();
auto cube = [](auto x) { return x * x * x; }; auto cube = [](auto x) { return x * x * x; };
constexpr auto via_float = cube(std::numbers::pi_v<float>); constexpr auto via_float = cube(std::numbers::pi_v<float>);
constexpr auto via_long_double = static_cast<float>(cube(std::numbers::pi_v<long double>)); constexpr auto via_long_double = static_cast<float>(cube(std::numbers::pi_v<long double>));
constexpr auto pi_cubed_value = pi_cubed.value<float>; constexpr auto pi_cubed_value = pi_cubed.value<float>;
REQUIRE(pi_cubed_value != via_float); REQUIRE(pi_cubed_value != via_float);
CHECK(pi_cubed_value == via_long_double); CHECK(pi_cubed_value == via_long_double);
}
} }
SECTION("Impossible requests are prevented at compile time") SECTION("Impossible requests are prevented at compile time")