sort error

[snow]

On Friday, 28 June 2013 at 17:07:22 UTC, Ali Çehreli wrote:
> On 06/28/2013 07:00 AM, snow wrote:> Hello there,
> > Ive got the following code
> >
> > http://dpaste.dzfl.pl/e391a268
> >
> > This code throws me a "Range Exception" in Algorithm.d.
> >
> > If I use a lower number of random vectors, like 100, the code
> > terminates. Also, if I delete the template instruction like
> this :
> >
> > sort(individuals);
> >
> > I also don't get an exception.
>
> Yes, what is thrown is an Error. (Error and Exception are 
> different hierarchies under Throwable.)
>
> > Does anybody know, why this is the case?
>
> Your opCmp does not provide a complete ordering of objects:
>
> 	int opCmp(ref const Vector3D vec) {
> 		if (this.x > vec.x && this.y > vec.y && this.z > vec.z)
> 			return 1;
> 		
> 		if (this.x < vec.x && this.y < vec.y && this.z < vec.z)
> 			return -1;
> 		
> 		return 0;
> 	}
>
> According to that function, the following two values are 
> neither less than nor greater than the other:
>
>     // passes:
>     assert(!(Vector3D(1, 2, 3) < Vector3D(2, 1, 3)) &&
>            !(Vector3D(1, 2, 3) > Vector3D(2, 1, 3)));
>
> Ali

I tried this now:
	int opCmp(ref const Vector3D vec) {
		if (this.x > vec.x && this.y > vec.y && this.z > vec.z)
			return 1;
		return -1;
	}
this should be a total ordering, because a Vector is always 
greater or smaller, than another, but I still get the same 
exception.