Re: Is removing elements of AA in foreach loop safe?

[Jordan Wilson via Digitalmars-d-learn]

On Thursday, 29 August 2019 at 10:11:58 UTC, berni wrote:
Iterating of some structure and removing elements thereby is 
always errorprone and should be avoided. But: In case of AA, 
I've got the feeling, that it might be safe:

foreach (k,v;ways)
    if (v.empty)
        ways.remove(k);

Do you agree? Or is there a better way to achieve this?

This should work, due to the keys property returning a dynamic 
array:

foreach (k; ways.keys) {
    if (ways[k].empty)
        ways.remove(k);
}

Jordan