Mega Code Archive
0066 Check Not-a-Number
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To test if a float-point value is a NaN(Not a Number), use the method from float or double.
using System;
class Program
{
static void Main(string[] args)
{
Console.WriteLine(double.IsNaN(0.0 / 0.0)); // True
}
}
The output:
True
We can also use the object.Equals to compare two NaN values.
using System;
class Program
{
static void Main(string[] args)
{
Console.WriteLine(object.Equals(0.0 / 0.0, double.NaN)); // True
}
}
The output:
True
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