Created attachment 1121
code showing the bug
The attached program produces buggy code. This code stores an index
(a list of Agg*) to some Agg and prints all Agg currently in this
index. Then it prints every Agg in turn.
In the foreach loop every agg is empty. Which is wrong. It works however, if
I comment out the alias content this; line or if I don't print the index
before the loop.
struct A
{
int a;
int b;
}
struct Agg
{
A[] content;
alias content this;
}
void main(string[] args)
{
Agg* agg = new Agg;
A l1 = A((1), (2));
A l2 = A((2), (3));
A l3 = A((3), (4));
agg.content ~= [l1, l2, l3];
Agg*[] aggIndex = [agg];
writefln("these are the %s aggregates:\n%s",
aggIndex.length,
aggIndex);
foreach(Agg* myAgg; aggIndex)
{
A[] as = (*myAgg).content;
writefln("current agg %s with length %s", as, as.length);
}
}
Comment #1 by issues.dlang — 2012-06-27T01:29:29Z
On the latest master, I get the exact same behavior regardless of whether the alias is there. I always get
these are the 1 aggregates:
[7F3AB1ECEFF0]
current agg [A(1, 2), A(2, 3), A(3, 4)] with length 3
and commenting out the first print statement has no effect on the second.