On Mon, 10 Nov 2014 08:10:08 +0000 Tomer Filiba via Digitalmars-d <digitalmars-d@puremagic.com> wrote:
> The following code does not invoke S.~this. If I change `struct
> S` to `class S` - it does. Memory consumption remains constant,
> meaning memory is collected, but destructors are not called.
>
> import std.stdio;
> import std.conv;
>
> struct S {
> string s;
>
> ~this() {
> writeln("~S");
> }
> }
>
> void main() {
> auto i = 0;
> S[] arr;
>
> while (true) {
> arr ~= S("hello " ~ text(i++));
> if (arr.length == 1_000_000) {
> writeln(&arr[8888], " = ", arr[8888].s);
> arr.length = 0;
> }
> }
> }
>
>
> Is it a bug? How can I effectively implement RAII with this
> behavior?
it's a bug, it was recently filled and Walter (afair) made a PR with
fix, but it's not yet merged.
> Any workaround for this?
made your own array implementation which manually calls dtors. or wait
for next DMD release with this bug fixed. ;-)
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