| commit | b468aa921e135c34a90e332d6593c72caf99d585 | |
| author | Nick Bowler <nbowler@draconx.ca> | |
| Fri, 5 Feb 2010 17:18:53 +0000 (5 12:18 -0500) | ||
| committer | Nick Bowler <nbowler@draconx.ca> | |
| Fri, 5 Feb 2010 22:34:02 +0000 (5 17:34 -0500) | ||
| tree | 7b864f355c68e236692431305d8df547f27b5ebd | treesnapshot (tar.gz zip) |
| parent | a43efc441a9844970efab7be95f574aa2c0c43d2 | commitdiff |
floating: Use nearbyint instead of round in fquotRem.
The remainder function rounds halfway values to even, while the round
function rounds halfway values away from zero. This is obviously wrong,
so use nearbyint which also rounds halfway to even, at least in the
pure case.
In the FEnv case, changing the rounding mode now affects the quotient,
which is probably wrong. So this change probably just trades an old
bug for a new, less important one.
The remainder function rounds halfway values to even, while the round
function rounds halfway values away from zero. This is obviously wrong,
so use nearbyint which also rounds halfway to even, at least in the
pure case.
In the FEnv case, changing the rounding mode now affects the quotient,
which is probably wrong. So this change probably just trades an old
bug for a new, less important one.
| Data/Floating.hs | diffblobblamehistory | |
| c99-compat.c | diffblobblamehistory |