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.
