Re: [Boost-bugs] [Boost C++ Libraries] #7879: Optimize equality comparison

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7879: Optimize equality comparison
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-01-11 15:44:23

#7879: Optimize equality comparison
  Reporter: Stepan Podoskin <stepik-777@…> | Owner: johnmaddock
      Type: Feature Requests | Status: new
 Milestone: To Be Determined | Component: multiprecision
   Version: Boost 1.53.0 | Severity: Optimization
Resolution: | Keywords:

Comment (by Stepan Podoskin <stepik-777@…>):

 Also, as I see, `rational<IntType>::operator<` is overcomplicated. It uses
 some complex algorithm, I think it is to prevent overflow. But with
 arbitrary-sized integers it can be as simple as `a.num*b.den <
 b.num*a.den` (and also we need to take care about signs). It should be
 faster than current algorithm that uses divisions.

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