* bignum.c (bary_sq_fast): Refine expressions.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-07-22

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42098 b2dd03c8-39d4-4d8f-98ff-823fe69b080e