On Sun, Jun 3, 2012 at 2:26 PM, bing deng <deng8bing at gmail.com> wrote: > Hi All, > > Why not modify "int ret;" to "int ret = 0;"? Below is the benefit: > 1. return the constant 0 as wish. > 2. The variable ret can be used if we want. Why? ret is in vain and wastes memory... -- Thanks, //richard