Reply to Kagamin,
BCS Wrote:
I've posted the code here:
http://smplsite.com/filebox/error.zip
auto r = (rp == Point(-.5,1.5));
writef("---%s\n", r);
assert(r, "++"~rp.toString);
Is this it?
Yes that's the spot that was (is?) generating an error. I'm not so sure anymore
as my system is no longer reproing but I seem to recall that it was printing
out true inside the opEquals function but false outside.
BTW the first function in that file had a bug and should be:
//Usable AlmostEqual function
bool ULP(T)(T A, T B, uint maxUlps)
{
if(A == B) return true;
static if(is(T == float)) { alias int Tint; Tint bound = 0x8000_0000; }
else static if(is(T == double)) { alias long Tint; Tint bound = 0x8000_0000_0000_0000;
}
else static assert(false, "only float or double can be used, not
"~T.stringof);
// Make sure maxUlps is non-negative and small enough that the
// default NAN won't compare as equal to anything.
assert(maxUlps > 0 && maxUlps < 4 * 1024 * 1024);
auto aInt = *cast(Tint*)&A;
// Make aInt lexicographically ordered as a twos-complement int
if (aInt < 0) aInt = bound - aInt;
// Make bInt lexicographically ordered as a twos-complement int
auto bInt = *cast(Tint*)&B;
if (bInt < 0) bInt = bound - bInt;
auto ulp = abs(aInt - bInt);
if (ulp <= maxUlps) return true;
return false;
}
