Facetable() : facets_(deleters_.size(), nullptr) {}
~Facetable()
{
- for (std::size_t i = 0; i < facets_.size(); ++i)
- if (facets_[i] != nullptr)
- deleters_[i](facets_[i]);
+ /* Call destructors in reverse order of their registrations
+ *
+ * The rationale for this, is that if a level B as been added after a
+ * facet A, the subsystem of B might depend on the subsystem on A and a
+ * facet of B might need to have the facet of A around when executing
+ * its cleanup function/destructor. */
+ for (std::size_t i = facets_.size(); i > 0; --i)
+ if (facets_[i - 1] != nullptr)
+ deleters_[i - 1](facets_[i - 1]);
}
// Type-unsafe versions of the facet access methods:
