CL_M_LOG2E_F      190 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_LOG2E_F       1.44269502162933f
CL_M_LOG2E_F      281 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_LOG2E_F       1.44269502162933f