tree 179dd365c8f931672715e534b7c3cbeb5adcdc6a
parent caa2538c69240f547b5962e7a639445b989f1243
parent 4e7b0d39ce21878cc00547b5dc6b5ca2fdf9e7b8
author pingping-lin <pingping@onlab.us> 1422490158 -0800
committer pingping-lin <pingping@onlab.us> 1422490158 -0800

Merge pull request #56 from pingping-lin/master

add case 3 and 4, and code style improvement