I've been working on a pull request and came up with something
like this:
private void initialize(A...)(auto ref A args)
{
auto m = cast(void* function(size_t size) pure)&malloc;
_store = cast(Impl*) enforce(m(Impl.sizeof));
auto r = cast(void function(in void* p, size_t sz) nothrow
pure)&GC.addRange;
static if (hasIndirections!T)
r(&_store._payload, T.sizeof);
emplace(&_store._payload, args);
_store._count = 1;
}
The purity of "emplace" depends on the purity of the ctor called.
I'm not sure how to fix that.
