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This is an older version of Boost and was released in 2013. The current version is 1.90.0.
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.
1.6.1