Re: Proposal: New Eq and Ord instances for Double and Float

Daniel> Same. I'd still hate the instances, but my practical Daniel> concerns would be mostly covered by it. Daniel> On Mon, Sep 26, 2011 at 10:14 AM, Edward Kmett wrote: A proposal that made signalling NaN the default is something I could get behind. But how would you implement it without significant overhead? A quick google for signalling NaNs seems to suggest that on the x86 architecture, you have to set a flag to raise an exception when encountering signalling NaNs. Otherwise they are just treated as quiet NaNs. But you have to create the signalling NaNs manually. They are not created as a result of arithmetic operations. -- Colin Adams Preston Lancashire () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments