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Re: Surprising Behavior Comparing Floats
- From: Rob <robpilling at gmail dot com>
- To: Nick <nospam at codesniffer dot com>
- Cc: gcc <gcc at gcc dot gnu dot org>
- Date: Sat, 11 Jan 2014 15:24:11 +0000 (GMT)
- Subject: Re: Surprising Behavior Comparing Floats
- Authentication-results: sourceware.org; auth=none
- References: <1389453495 dot 1716 dot 13 dot camel at nimble dot 325Bayport>
On Sat, 11 Jan 2014, Nick wrote:
I'm very surprised by the result in #6. #7 seems to be doing the same
thing, except that it uses a local variable to hold the sum.
Sounds to me like it could be related to excess precision - checkout the
-ffloat-store option. I don't see it on my machine either way, but I'm
on 4.7.2.
Rob