Fix the possible integer overflow. 
Fix the possible integer overflow. 
kgoodier/XVim,tanxxjun321/XVim,raimon49/XVim,Chenkaiang/XVim,ishkawa/XVim,brucehappy/XVim,EmuxEvans/XVim,tonyd256/XVim,hyperspacemark/XVim,XVimProject/XVim,Chenkaiang/XVim,antmd/XVim1,otfsenter/XVim,antmd/XVim1,pebble8888/XVim,ishkawa/XVim,xuebuhui52011/XVim,pebble8888/XVim,dengcqw/XVim_x,pebble8888/XVim,lisuxia1992/XVim,XVimProject/XVim,xuebuhui52011/XVim,gecko655/XVim,tkuichooseyou/XVim,raimon49/XVim,ishkawa/XVim,antmd/XVim,gecko655/XVim,tkuichooseyou/XVim,yixiang/XVim,raimon49/XVim,scottsievert/XVim,scottsievert/XVim,EmuxEvans/XVim,N4tr0n/XVim,EmuxEvans/XVim,tonyd256/XVim,thatchristoph/XVim,hyperspacemark/XVim,otfsenter/XVim,hmuronaka/XVim,N4tr0n/XVim,otfsenter/XVim,hyperspacemark/XVim,liwangwang123/XVim,lisuxia1992/XVim,pebble8888/XVim,takeshineshiro/XVim,lisuxia1992/XVim,gecko655/XVim,antmd/XVim,SampleLiao/XVim,squarefrog/XVim,rokemoon/XVim,XVimProject/XVim,scottsievert/XVim,yixiang/XVim,kgoodier/XVim,teemobean/XVim,tanxxjun321/XVim,teemobean/XVim,kgoodier/XVim,tkuichooseyou/XVim,thatchristoph/XVim,brucehappy/XVim,teemobean/XVim,tanxxjun321/XVim,xuebuhui52011/XVim,tonyd256/XVim,sunzeboy/XVim,lisuxia1992/XVim,brucehappy/XVim,weizhenwei/XVim,liwangwang123/XVim,dengcqw/XVim_x,squarefrog/XVim,liwangwang123/XVim,sunzeboy/XVim,squarefrog/XVim,raimon49/XVim,antmd/XVim1,rokemoon/XVim,Chenkaiang/XVim,sunzeboy/XVim,tkuichooseyou/XVim,kgoodier/XVim,squarefrog/XVim,hyperspacemark/XVim,weizhenwei/XVim,liwangwang123/XVim,hmuronaka/XVim,gecko655/XVim,thatchristoph/XVim,teemobean/XVim,XVimProject/XVim,N4tr0n/XVim,yixiang/XVim,xuebuhui52011/XVim,SampleLiao/XVim,SampleLiao/XVim,scottsievert/XVim,brucehappy/XVim,EmuxEvans/XVim,SampleLiao/XVim,antmd/XVim,tonyd256/XVim,takeshineshiro/XVim,antmd/XVim,weizhenwei/XVim,Chenkaiang/XVim,hmuronaka/XVim,yixiang/XVim,dengcqw/XVim_x,hmuronaka/XVim,thatchristoph/XVim,weizhenwei/XVim,tanxxjun321/XVim,otfsenter/XVim,ishkawa/XVim,sunzeboy/XVim,takeshineshiro/XVim,N4tr0n/XVim,dengcqw/XVim_x