remove unnecessary <cmath> include

ecl.h

@@ -96,5 +96,5 @@ using ecl_abstime = uint64_t;
 
 #endif /* PX4_POSIX || PX4_NUTTX */
 
-#include <cmath>
+#include <math.h>
 #define ISFINITE(x) __builtin_isfinite(x)

test/test_EKF_basics.cpp

@@ -32,7 +32,7 @@
  ****************************************************************************/
 
 #include <gtest/gtest.h>
-#include <cmath>
+#include <math.h>
 #include "EKF/ekf.h"
 
 class EkfInitializationTest : public ::testing::Test {

test/test_EKF_imuSampling.cpp

@@ -32,7 +32,7 @@
  ****************************************************************************/
 
 #include <gtest/gtest.h>
-#include <cmath>
+#include <math.h>
 #include "EKF/ekf.h"
 
 class EkfSamplingTestParametrized : public ::testing::TestWithParam<std::tuple<float,float>>

test/test_EKF_ringbuffer.cpp

@@ -32,7 +32,7 @@
  ****************************************************************************/
 
 #include <gtest/gtest.h>
-#include <cmath>
+#include <math.h>
 #include "EKF/ekf.h"
 
 struct sample {

test/test_EKF_sampling.cpp

@@ -32,7 +32,7 @@
  ****************************************************************************/
 
 #include <gtest/gtest.h>
-#include <cmath>
+#include <math.h>
 #include "EKF/ekf.h"
 
 class EkfImuSamplingTestParametrized : public ::testing::TestWithParam<std::tuple<float,float>>

validation/data_validator.h

@@ -41,7 +41,7 @@
 
 #pragma once
 
-#include <cmath>
+#include <math.h>
 #include <stdint.h>
 
 class DataValidator