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Date:      Thu, 22 Oct 1998 12:00:12 +1000
From:      Bruce Evans <bde@zeta.org.au>
To:        bde@zeta.org.au, mike@smith.net.au
Cc:        bde@FreeBSD.ORG, freebsd-chat@FreeBSD.ORG, jobaldwi@vt.edu
Subject:   Re: Bug in rintf()?...
Message-ID:  <199810220200.MAA04831@godzilla.zeta.org.au>

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>> >>  rintf(3.5) returns 4.0
>> >>  rintf(3910.5) returns 3910.0  (should return 3911.0)
>> 
>> This seems to be correct.  rintf() rounds to the nearest integer according
>> to the prevailing rounding mode.  The default prevailing rounding mode
>> is round-to-even.  rintf() even seems to get this right for all the
>> other rounding modes (towards +Inf, towards -Inf and towards 0).
>
>Where do you set the rounding mode?  The only reference I could find 
>was fpsetround(), which offers nearest, -inf, +inf and truncate.  

One way is sufficent.

>math(3) lists 3 types for ieee754 (+inf, -inf and 0).

Also the standard type (round to even).

Bruce

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