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[wpimath] Increase constexpr support in geometry data types (#4231)

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This uses std::is_constant_evaluated() to conditionally use the gcem library for constexpr calculations.
This commit is contained in:
David K Turner
2022-10-31 11:17:00 -05:00
committed by GitHub
parent 1c3c86e9f1
commit 3a5a376465
94 changed files with 6919 additions and 212 deletions
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18
wpimath/src/test/native/cpp/geometry/Translation2dTest.cpp
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@@ -93,3 +93,21 @@ TEST(Translation2dTest, PolarConstructor) {
EXPECT_DOUBLE_EQ(1.0, two.X().value());
EXPECT_DOUBLE_EQ(std::sqrt(3.0), two.Y().value());
}
TEST(Translation2dTest, Constexpr) {
constexpr Translation2d defaultCtor;
constexpr Translation2d componentCtor{1_m, 2_m};
constexpr auto added = defaultCtor + componentCtor;
constexpr auto subtracted = defaultCtor - componentCtor;
constexpr auto negated = -componentCtor;
constexpr auto multiplied = componentCtor * 2;
constexpr auto divided = componentCtor / 2;
static_assert(defaultCtor.X() == 0_m);
static_assert(componentCtor.Y() == 2_m);
static_assert(added.X() == 1_m);
static_assert(subtracted.Y() == (-2_m));
static_assert(negated.X() == (-1_m));
static_assert(multiplied.X() == 2_m);
static_assert(divided.Y() == 1_m);
}