CL_FLT_MANT_DIG   154 3rdparty/include/opencl/1.2/CL/cl_platform.h #define CL_FLT_MANT_DIG     24
CL_FLT_MANT_DIG   245 3rdparty/include/opencl/1.2/CL/cl_platform.h #define CL_FLT_MANT_DIG     24