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[wpimath] Fix various constexpr support bugs (#7676)

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This commit is contained in:
Tyler Veness
2025-01-13 13:44:55 -08:00
committed by GitHub
parent cd92b07321
commit 25e6549398
10 changed files with 454 additions and 73 deletions
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39
wpimath/src/test/native/cpp/system/LinearSystemIDTest.cpp
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@@ -12,8 +12,13 @@
#include "units/mass.h"
TEST(LinearSystemIDTest, IdentifyDrivetrainVelocitySystem) {
#if __GNUC__ <= 11
auto model = frc::LinearSystemId::DrivetrainVelocitySystem(
frc::DCMotor::NEO(4), 70_kg, 0.05_m, 0.4_m, 6.0_kg_sq_m, 6.0);
#else
constexpr auto model = frc::LinearSystemId::DrivetrainVelocitySystem(
frc::DCMotor::NEO(4), 70_kg, 0.05_m, 0.4_m, 6.0_kg_sq_m, 6.0);
#endif
ASSERT_TRUE(model.A().isApprox(
frc::Matrixd<2, 2>{{-10.14132, 3.06598}, {3.06598, -10.14132}}, 0.001));
@@ -37,8 +42,14 @@ TEST(LinearSystemIDTest, ElevatorSystem) {
}
TEST(LinearSystemIDTest, FlywheelSystem) {
#if __GNUC__ <= 11
auto model = frc::LinearSystemId::FlywheelSystem(frc::DCMotor::NEO(2),
0.00032_kg_sq_m, 1.0);
#else
constexpr auto model = frc::LinearSystemId::FlywheelSystem(
frc::DCMotor::NEO(2), 0.00032_kg_sq_m, 1.0);
#endif
ASSERT_TRUE(model.A().isApprox(frc::Matrixd<1, 1>{-26.87032}, 0.001));
ASSERT_TRUE(model.B().isApprox(frc::Matrixd<1, 1>{1354.166667}, 0.001));
ASSERT_TRUE(model.C().isApprox(frc::Matrixd<1, 1>{1.0}, 0.001));
@@ -46,8 +57,14 @@ TEST(LinearSystemIDTest, FlywheelSystem) {
}
TEST(LinearSystemIDTest, DCMotorSystem) {
#if __GNUC__ <= 11
auto model = frc::LinearSystemId::DCMotorSystem(frc::DCMotor::NEO(2),
0.00032_kg_sq_m, 1.0);
#else
constexpr auto model = frc::LinearSystemId::DCMotorSystem(
frc::DCMotor::NEO(2), 0.00032_kg_sq_m, 1.0);
#endif
ASSERT_TRUE(
model.A().isApprox(frc::Matrixd<2, 2>{{0, 1}, {0, -26.87032}}, 0.001));
ASSERT_TRUE(model.B().isApprox(frc::Matrixd<2, 1>{0, 1354.166667}, 0.001));
@@ -59,10 +76,17 @@ TEST(LinearSystemIDTest, DCMotorSystem) {
TEST(LinearSystemIDTest, IdentifyPositionSystem) {
// By controls engineering in frc,
// x-dot = [0 1 | 0 -kv/ka] x = [0 | 1/ka] u
double kv = 1.0;
double ka = 0.5;
constexpr double kv = 1.0;
constexpr double ka = 0.5;
#if __GNUC__ <= 11
auto model = frc::LinearSystemId::IdentifyPositionSystem<units::meter>(
kv * 1_V / 1_mps, ka * 1_V / 1_mps_sq);
#else
constexpr auto model =
frc::LinearSystemId::IdentifyPositionSystem<units::meter>(
kv * 1_V / 1_mps, ka * 1_V / 1_mps_sq);
#endif
ASSERT_TRUE(model.A().isApprox(
frc::Matrixd<2, 2>{{0.0, 1.0}, {0.0, -kv / ka}}, 0.001));
@@ -73,10 +97,17 @@ TEST(LinearSystemIDTest, IdentifyVelocitySystem) {
// By controls engineering in frc,
// V = kv * velocity + ka * acceleration
// x-dot = -kv/ka * v + 1/ka \cdot V
double kv = 1.0;
double ka = 0.5;
constexpr double kv = 1.0;
constexpr double ka = 0.5;
#if __GNUC__ <= 11
auto model = frc::LinearSystemId::IdentifyVelocitySystem<units::meter>(
kv * 1_V / 1_mps, ka * 1_V / 1_mps_sq);
#else
constexpr auto model =
frc::LinearSystemId::IdentifyVelocitySystem<units::meter>(
kv * 1_V / 1_mps, ka * 1_V / 1_mps_sq);
#endif
ASSERT_TRUE(model.A().isApprox(frc::Matrixd<1, 1>{-kv / ka}, 0.001));
ASSERT_TRUE(model.B().isApprox(frc::Matrixd<1, 1>{1.0 / ka}, 0.001));