When this will be freed?

[John Colvin]

On Wednesday, 2 April 2014 at 15:45:06 UTC, Andrea Fontana wrote:
>
> auto example(char* test) { return toStringz(to!string(test) ~ " 
> world!"); }
>
> When that return string will be freed?
>
> What about:
>
> extern(C) auto example(....)
>
> ?

to!string allocates on the GC heap when given a char* (it has to, 
in order to safely produce immutable data in the string).

It will be freed by the first garbage collection ocurring after 
all references to that memory are dead.