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std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::
hash_function
From cppreference.com
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unordered map
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C++
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Standard library
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Feature test macros
(C++20)
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(C++20)
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(C++20)
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(C++17)
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(C++11)
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(C++26)
Technical specifications
Symbols index
External libraries
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Containers library
node-handle
(C++17)
Sequence
array
(C++11)
vector
vector
<bool>
inplace_vector
(C++26)
hive
(C++26)
deque
forward_list
(C++11)
list
Associative
set
multiset
map
multimap
Unordered associative
unordered_set
(C++11)
unordered_multiset
(C++11)
unordered_map
(C++11)
unordered_multimap
(C++11)
Adaptors
stack
queue
priority_queue
flat_set
(C++23)
flat_multiset
(C++23)
flat_map
(C++23)
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(C++23)
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span
(C++20)
mdspan
(C++23)
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Iterator invalidation
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[edit]
std::unordered_map
Member types
Member functions
unordered_map::unordered_map
unordered_map::~unordered_map
unordered_map::operator=
unordered_map::get_allocator
Iterators
unordered_map::begin
unordered_map::cbegin
unordered_map::end
unordered_map::cend
Capacity
unordered_map::size
unordered_map::max_size
unordered_map::empty
Modifiers
unordered_map::clear
unordered_map::erase
unordered_map::swap
unordered_map::extract
(C++17)
unordered_map::merge
(C++17)
unordered_map::insert
unordered_map::insert_range
(C++23)
unordered_map::insert_or_assign
(C++17)
unordered_map::emplace
unordered_map::emplace_hint
unordered_map::try_emplace
(C++17)
Lookup
unordered_map::at