Reply to Andrei,
Walter Bright wrote:
Andrei Alexandrescu wrote:
keepStable is a template function that simply wraps the range in a
different type. It's a way to pass information about the range
(e.g., "keep this stable", or "this is sorted already"), to the
function understanding it.
Would these be composable? I.e.:
thisAttribute(thatAttribute(T)) is the same as
thatAttribute(thisAttribute(T)) ? Would the algorithm detect the
'inner' attribute?
Great question. Not sure whether I can implement composition to be
entirely order-invariant, but yes, the algorithm should "see" various
attributes of the wrapped range.
Andrei
you could do composition by tuple/set unioning and always sort the set (by
.stringof)
