Re: [Gc] Strange leak in simple code

Read the code carefully.  This code keeps pointer only to last node. So
only two nodes are reachable at max.
What do you mean "it leaks?"

You're making a linked list, with every object pointed to either by 'last'
or by the previous object.

I would be very very unhappy if this was garbage collected!!


On Mon, Jul 13, 2015 at 11:12 PM, Юрий Соколов <[email protected]>
wrote:

> Using libgc from Ubuntu 15.04 (7.2b-6.4) this simple code leaks:
>
>     #include <gc.h>
>     struct list {
>         struct list* next;    };
>         int main() {
>         GC_INIT();
>         struct list *last = NULL;
>         for (;;) {
>             struct list* nuo = GC_MALLOC(sizeof(struct list));
>             nuo->next = NULL;
>             // if next line is commented, then no leakage
>             if (last) last->next = nuo;
>             last = nuo;
>         }    }
>
>
>
> stackoverflow question
> http://stackoverflow.com/questions/31380641/libgc-why-this-code-leaks
>
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