26 Containers library [containers]

26.5 Unordered associative containers [unord]

26.5.1 In general [unord.general]

The header <unordered_­map> defines the class templates unordered_­map and unordered_­multimap; the header <unordered_­set> defines the class templates unordered_­set and unordered_­multiset.

The exposition-only alias templates iter_­key_­t, iter_­val_­t, and iter_­to_­alloc_­t defined in [associative.general] may appear in deduction guides for unordered containers.