On Wednesday, 31 July 2013 at 14:55:55 UTC, Dicebot wrote:
On Wednesday, 31 July 2013 at 14:43:21 UTC, Daniel Kozak wrote:
is there a way for AA to behave same as PHP?
I doubt it. This snippet suggests that AA's in PHP are not
simply AA's and do additionally track insertion order (or use
some similar trick). Data in associative arrays is organized in
a way that allows fast key lookup and iterating in an original
order requires tracking extra state. Contrary to PHP, D does
care about performance so I see no way this can happen
automatically.
I implemented my own OrderedAA type, which is able to preserve
insert order and is a little faster and take less memory(30%)
then the builtin one :-).
But definitly there will be some cases where my own
implementation doesn't beat the builtin one.
