AllocatorBlock allocate(size_t n) {
if (n == s && root_) {
AllocatorBlock b = { root_, n };
root_ = root_->next;
return b;
} else {
return parent_.allocate(n);
}
}
vector_base(const A& a, typename A::size_type n) : alloc(a), v(alloc.allocate(n)), space(v+n), last(v+n) { }
bsend_buffer(int size, A alloc) : size(size), alloc(alloc), buff(alloc.allocate(size)) {
environment::buffer_attach(buff, size);
}
