27 Jul
2010
27 Jul
'10
4:17 p.m.
This would be ideal - but doesn't accumulator already use 'sum' so it would change behaviour of existing programs?
Technically, of course it would, but aren't they getting the wrong answer currently?
I tend to agree with Dave, so long as the kahan sum accumulator is a drop-in replacement for what we already have. Does it Just Work for integral types, too?
It's not required for integral types as these don't suffer from cancelation errors. John.