https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96942
--- Comment #34 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Dmitriy Ovdienko from comment #26)
> According to requirements to the task, I cannot implement my own memory
> arena. So I have to find way how to use STL to achieve same effect.
I assume you can't just preallocate a buffer for the pool?
std::unique_ptr<std::byte[]> bytes(new std::byte[poolSize(stretch_depth)]);
// Alloc then dealloc stretchdepth tree.
int count = 0;
for(int i = 0; i < 20; ++i)
{
// num_nodes = 0;
MemoryPool store (bytes.get(), poolSize(stretch_depth));
Here store.release() will reuse the original buffer supplied to the
constructor, so it never actually allocates.
