Enable Math Constants and Use cmath Header

CMakeLists.txt

@@ -86,6 +86,9 @@ target_link_libraries(${module_name}
         _aidge_core # _ is added because we link the exported target and not the project
 )
 
+# Add definition _USE_MATH_DEFINES to enable math constant definitions from math.h/cmath.
+target_compile_definitions(${module_name} PRIVATE _USE_MATH_DEFINES)
+
 #Set target properties
 set_property(TARGET ${module_name} PROPERTY POSITION_INDEPENDENT_CODE ON)
 

include/aidge/backend/cpu/operator/HeavisideImpl_kernels.hpp

@@ -15,7 +15,7 @@
 #include "aidge/utils/Registrar.hpp"
 
 #include <cstddef> // std::size_t
-#include <math.h>
+#include <cmath>
 
 #include "aidge/backend/cpu/operator/HeavisideImpl.hpp"
 #include "aidge/utils/ErrorHandling.hpp"