CL_M_E_F          189 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_E_F           2.71828174591064f
CL_M_E_F          280 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_E_F           2.71828174591064f