madlib/madlib — pull request #252 by KevinYL (2012-10-16 05:58:28+00:00)
Title: BugFix:MADLIB-702

Eliminate warnings on gcc 4.6.

There are two kinds of warnings.

First, type conversion, from uint64_t to double, between signed and
unsigned types. For type conversion, we add cast explicitly.

Second, unused auto variables. We just remove them.