Re: draft patch for strtof() - Mailing list pgsql-hackers

From Andrew Gierth
Subject Re: draft patch for strtof()
Date
Msg-id 87ef9aj27b.fsf@news-spur.riddles.org.uk
Whole thread Raw
In response to Re: draft patch for strtof()  (Andrew Gierth <andrew@tao11.riddles.org.uk>)
List pgsql-hackers
>>>>> "Andrew" == Andrew Gierth <andrew@tao11.riddles.org.uk> writes:

 Andrew> Because it turns out that Windows (at least the version running
 Andrew> on Appveyor) completely fucks this up; strtof() is apparently
 Andrew> returning infinity or zero _without setting errno_ for values
 Andrew> out of range for float: input of "10e70" returns +inf with no
 Andrew> error, input of "10e-70" returns (exactly) 0.0 with no error.

This bug turns out to be dependent on compiler/SDK versions, not
surprisingly. So far I have figured out how to invoke these combinations
on appveyor:

VS2013 / SDK 7.1 (as per cfbot): fails
VS2015 / SDK 8.1: works

Trying to figure out how to get other combinations to test.

-- 
Andrew (irc:RhodiumToad)


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