On 6/25/2011 11:54 AM, Jonathan M Davis wrote:
On 2011-06-24 20:41, Nub Public wrote:
Is there a way to remove all elements in an associative array?
I tried clear() but it doesn't work. For some reason it sets the length
of the array to gibberish. What does clear() do exactly?
clear invokes an object's destructor and puts it in an invalid state. You
definitely don't want to do that to an associative array to empty it - if
ever.
Generally, the simplest thing to do to clear out an AA is to simply create a
new one. Either set the existing one to null or assign it a new AA. The old
one can then be garbage collected.
Thanks. That was very helpful.
Now, if you actually need to remove all of
the elements from the existing one (e.g. because multiple places in your code
have references to it), then the only way that I'm aware of is to remove all
of the elements one by one with remove.
http://www.d-programming-language.org/hash-map.html
- Jonathan M Davis
How to do this properly?
foreach (key, value; aa)
remove(key);
This doesn't work since it's altering the aa in each iteration.
