CL_M_PI_2_F       195 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_PI_2_F        1.57079637050629f
CL_M_PI_2_F       286 3rdparty/include/opencl/1.2/CL/cl_platform.h #define  CL_M_PI_2_F        1.57079637050629f