CL_DBL_MIN_EXP    169 3rdparty/include/opencl/1.2/CL/cl_platform.h #define CL_DBL_MIN_EXP      -1021
CL_DBL_MIN_EXP    260 3rdparty/include/opencl/1.2/CL/cl_platform.h #define CL_DBL_MIN_EXP      -1021