Create an unordered map from the specified values initializer list.
Declared in <bslstl_unorderedmap.h>
template<>
requires std::is_invocable_v<HASH, const KEY &> && std::is_invocable_v<EQUAL, const KEY &, const KEY &> && bsl::IsStdAllocator_v<ALLOCATOR>
unordered_map(
std::initializer_list<value_type> values,
size_type initialNumBuckets = 0,
HASH const& hashFunction = HASH(),
EQUAL const& keyEqual = EQUAL(),
ALLOCATOR const& basicAllocator = ALLOCATOR());Create an empty unordered map, having a max_load_factor of 1.0, and then create a value_type object for each element in the specified values list, ignoring those having a key that appears earlier in the sequence. Optionally specify a minimum initialNumBuckets, hashFunction, keyEqual, and basicAllocator as for the range constructor.
| Name | Description |
|---|---|
| values | initializer list of values to insert |
| initialNumBuckets | initial number of buckets |
| hashFunction | hash functor |
| keyEqual | key-equality functor |
| basicAllocator | allocator used to supply memory |