Re: Unittest hangs on completion

[rikki cattermole via Digitalmars-d-learn]

On 31/12/2016 2:52 PM, David Zhang wrote:
Extracting everything into a main() also causes the application to hang.
ie:

struct S
{
    S* next;
}

S* _foo;
foreach (e; 0 .. 10)
    _foo = theAllocator.make!S(_foo);

S* next, current;
next = current = _foo;
while (next)
{
    next = current.next;
    theAllocator.dispose(current);
}



As it should, current is never reassigned.
You only need one var, next. Of course I didn't read the entire thread 
chain so, I'm probably missing something.

import std.experimental.allocator;

void main() {
        struct S { S* next; }
        S* _foo;
        foreach (e; 0 .. 10)
                _foo = theAllocator.make!S(_foo);
        S* next;

        next = _foo;
        while(next !is null) {
                auto nextT = next.next;
                theAllocator.dispose(next);
                next = nextT;
        }
}