[Issue 3821] writeln doesn't detect recursive data structures yet

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3821



--- Comment #2 from Andrej Mitrovic <andrej.mitrovich at gmail.com> 2012-12-20 15:46:13 PST ---
Simple example:

import std.stdio;
import std.string;

class A
{
    B b;
    override string toString() { return format("A(%s)", b.toString()); }
}

class B
{
    A a;
    override string toString() { return format("B(%s)", a.toString()); }
}

void main() {
    auto a = new A;
    auto b = new B;
    a.b = b;
    b.a = a;
    writeln(a);
}

But why is this set for Druntime and to Sean Kelly? This is a Phobos issue imo.

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