...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
The sparse push_back fill policy. More...
Inherits fill_policy_wrapper< sparse_push_back >.
This policy is adequate for sparse types, when fast filling is required, where indexing assign is pretty slow.
It is important to note that push_back assign cannot be used to add elements before elements already existing in a sparse container. To achieve that please use the sparse_insert fill policy.