adding destroyable objects into Ggc

[Gabriel Dos Reis]

On Tue, Oct 18, 2011 at 1:03 PM, Basile Starynkevitch
<basile@starynkevitch.net> wrote:
> On Tue, 18 Oct 2011 18:53:07 +0100
> Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>
>> On 18 October 2011 16:12, Basile Starynkevitch wrote:
>> >
>> > Of course, with C++, the destructor routine is really what C++ calls a destructor, e.g
>> > something like extern "C" void my_destructor_for_class_C (class C* p)
>> > { delete (p) p; // call the placement version of operator delete, from <new> C++ library
>> > header. }
>>
>> Why not just call the destructor?
>>
>>    p->~C()
>
> You are right. But I was also thinking of giving a C ABI to these destructors.

why?

In a good design, you almost never want to do that.