StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POComparing approximate values in c# 4.0?
text
Body
copied!<p>First of all, please excuse any typo, English is not my native language.</p> <p>Here's my question. I'm creating a class that represents approximate values as such:</p> <pre><code>public sealed class ApproximateValue { public double MaxValue { get; private set; } public double MinValue { get; private set; } public double Uncertainty { get; private set; } public double Value { get; private set; } public ApproximateValue(double value, double uncertainty) { if (uncertainty < 0) { throw new ArgumentOutOfRangeException("uncertainty", "Value must be postivie or equal to 0."); } this.Value = value; this.Uncertainty = uncertainty; this.MaxValue = this.Value + this.Uncertainty; this.MinValue = this.Value - this.Uncertainty; } } </code></pre> <p>I want to use this class for uncertain measurments, like x = 8.31246 +/-0.0045 for example and perform calculations on these values.</p> <p>I want to overload operators in this class. I don't know how to implement the >, >=, <= and < operators... The first thing I thought of is something like this:</p> <pre><code> public static bool? operator >(ApproximateValue a, ApproximateValue b) { if (a == null || b == null) { return null; } if (a.MinValue > b.MaxValue) { return true; } else if (a.MaxValue < b.MinValue) { return false; } else { return null; } } </code></pre> <p>However, in the last case, I'm not satisfied with this 'null' as the accurate result is not 'null'. It may be 'true' or it may be 'false'.</p> <p>Is there any object in .Net 4 that would help implementing this feature I am not aware of, or am I doing the correct way? I was also thinking about using an object instead of a boolean that would define in what circumstances the value is superior or not to another one rather than implementing comparison operators but I feel it's a bit too complex for what I'm trying to achieve...</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload