Fix an issue on FP calculation diff of osx and linux

sugar on mac

result_type=1 expected=<1093> actual=<1047>
result_type=4 expected=<730> actual=<698>
result_type=5 expected=<177> actual=<173>

sugar on linux

result_type=1 expected=<1093> actual=<1047>
result_type=4 expected=<730> actual=<698>
result_type=5 expected=<177> actual=<173>

Change-Id: I4cd39becb0de4076dd37d870adda6463a96de424