tree 94bad75b5fb7f5e1b434271a4643d5449f514cb2
parent 6cc2c81eddb3a6df9e962321a59e5aa0608045e8
author Zhenkai Zhu <zhenkai@cs.ucla.edu> 1331006078 -0800
committer Zhenkai Zhu <zhenkai@cs.ucla.edu> 1331006078 -0800

add std qulifier to string