std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap (3) - Linux Manuals
std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap: std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap
Command to display std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap
manual in Linux: $ man 3 std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap
NAME
std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap - std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap
Synopsis
void swap( unordered_set& other ); (since C++11)
(until C++17)
void swap( unordered_set& other ) noexcept(/* see below */); (since C++17)
Exchanges the contents of the container with those of other. Does not invoke any move, copy, or swap operations on individual elements.
All iterators and references remain valid. The past-the-end iterator is invalidated.
The Hash and KeyEqual objects must be Swappable, and they are exchanged using unqualified calls to non-member swap.
If std::allocator_traits<allocator_type>::propagate_on_container_swap::value is true, then the allocators are exchanged using an unqualified call to non-member swap. Otherwise, they are not swapped (and if get_allocator() != other.get_allocator(), the behavior is undefined). (since C++11)
Parameters
other - container to exchange the contents with
Return value
(none)
Exceptions
Any exception thrown by the swap of the Hash or KeyEqual objects. (until C++17)
noexcept specification:
noexcept(std::allocator_traits<Allocator>::is_always_equal::value (since C++17)
&& std::is_nothrow_swappable<Hash>::value
&& std::is_nothrow_swappable<key_equal>::value)
Complexity
Constant.
See also
std::swap(std::unordered_set) specializes the std::swap algorithm
(function template)
(C++11)
Pages related to std::unordered_set<Key,Hash,KeyEqual,Allocator>::swap
- std::unordered_set<Key,Hash,KeyEqual,Allocator>::size (3) - std::unordered_set<Key,Hash,KeyEqual,Allocator>::size
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- std::unordered_set<Key,Hash,KeyEqual,Allocator>::clear (3) - std::unordered_set<Key,Hash,KeyEqual,Allocator>::clear
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- std::unordered_set<Key,Hash,KeyEqual,Allocator>::emplace_hint (3) - std::unordered_set<Key,Hash,KeyEqual,Allocator>::emplace_hint
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- std::unordered_set<Key,Hash,KeyEqual,Allocator>::merge (3) - std::unordered_set<Key,Hash,KeyEqual,Allocator>::merge
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- std::unordered_set<Key,Hash,KeyEqual,Allocator>::unordered_set (3) - std::unordered_set<Key,Hash,KeyEqual,Allocator>::unordered_set
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- std::unordered_set (3) - std::unordered_set