From: Rob Stewart (stewart_at_[hidden])
Date: 2004-07-19 11:34:16
From: "Matt Verona" <mattverona_at_[hidden]>
> I was reading the Boost documentation, and couldn't find a function to round
> floating point numbers (up or down) to the nearest integer.
> #include <math.h>
> double round(double number)
> return number < 0.0 ? ceil(number-0.5) : floor(number+0.5);
> This round function produces the following output:
> round(0.0) = 0
> round(1.49) = 1
> round(1.5) = 2
> round(-1.49) = -1
> round(-1.5) = -2
Your function implements only one of several rounding schemes.
If you named it "round_half_up," or something else unique and
descriptive, you could also have round_to_nearest_even() and
> Does Boost contain a simple rounding function like this?
I don't think so.
-- Rob Stewart stewart_at_[hidden] Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;
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