Re: operation of 'round' function

[Andreas Schwab]

Ronan Waide <ronan.waide@euroconex.com> writes:

|> This may be a bug, or may simply be a failure of understanding on my
|> part. However.
|> 
|> GNU Emacs 20.7.1 (i386-redhat-linux-gnu, X toolkit) of Mon Jul 30 2001
|> on stripples.devel.redhat.com
|> 
|> (round 0.5) = 0
|> (round 1.5) = 2
|> (round 2.5) = 2
|> (round 3.5) = 4
|> (round 4.5) = 4
|> 
|> and so forth. It appears to be rounding to the nearest /even/
|> integer.

Try (round 0.6).

|> The docstring says:
|> 
|> "Return the nearest integer to ARG."
|> 
|> Which should have returned 1, 2, 3, 4, 5 above.

0.5 is exactly halfway between 0 and 1, so the additional rule is that in
case of a tie the even number is used.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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