cmake, add _USE_MATH_DEFINES compile definition for Microsoft Visual C++ compiler

Author: pageldev

CMakeLists.txt

@@ -12,6 +12,7 @@ if(MSVC)
     set(CMAKE_CXX_FLAGS "/EHsc /Wall")
     set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS 1)
     set(CMAKE_CXX_FLAGS_RELEASE "/O2")
+    add_compile_definitions(_USE_MATH_DEFINES)
 else()
     set(CMAKE_CXX_FLAGS "-Wall")
     set(CMAKE_CXX_FLAGS_DEBUG "-g")