Re: How to replace the keyword "nan" to check the contract assert?

[Dennis Ritchie via Digitalmars-d-learn]

On Saturday, 21 March 2015 at 04:53:20 UTC, Ali Çehreli wrote:

nan cannot be used in comparisons. It is neither greater than nor less than any value. You cannot even compare it against itself. nan==nan would always be false.

The solution is to call std.math.isNaN. In this case, you have to split the assert into two. You can achieve the same thing in may ways but the following works:

    assert(arr[0 .. $ - 2] == [3.25, 3.25, 3.25, 3.25]);

    import std.algorithm;
    import std.math;
    assert(arr[$ - 2 .. $].all!isNaN);

Thanks.