std::set
From Cppreference
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std::set | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Defined in header <set>
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template<
class Key, |
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Set is an associative container that contains a sorted set of unique objects of type Key. Sorting is done using the key comparison function Compare. Search, removal, and insertion operations have logarithmic complexity. Sets are usually implemented as red-black trees.
Contents |
[edit] Member types
Member type | Definition |
key_type | Key |
value_type | Key |
size_type | Unsigned integral type (usually size_t) |
difference_type | Signed integer type (usually ptrdiff_t) |
key_compare | Compare |
value_compare | Compare |
allocator_type | Allocator |
reference | Allocator::reference (pre-C++11 version) value_type& (C++11 version) |
const_reference | Allocator::const_reference (pre-C++11 version) const value_type& (C++11 version) |
pointer | T* (pre-C++11 version) std::allocator_traits<Allocator>::pointer (C++11 version) |
const_pointer | const T* (pre-C++11 version) std::allocator_traits<Allocator>::const_pointer (C++11 version) |
iterator | Bidirectional iterator |
const_iterator | Constant bidirectional iterator |
reverse_iterator
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std::reverse_iterator<iterator> |
const_reverse_iterator
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std::reverse_iterator<const_iterator> |
[edit] Member functions
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constructs the set (public member function) |
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destructs the set (public member function) |
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assigns values to the container (public member function) |
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returns the associated allocator (public member function) |
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Iterators | |||
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returns an iterator to the beginning (public member function) |
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returns an iterator to the end (public member function) |
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returns a reverse iterator to the beginning (public member function) |
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returns a reverse iterator to the end (public member function) |
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Capacity | |||
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checks whether the container is empty (public member function) |
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returns the number of elements (public member function) |
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returns the maximum possible number of elements (public member function) |
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Modifiers | |||
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clears the contents (public member function) |
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inserts elements (public member function) |
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constructs element in-place (public member function) |
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constructs elements in-place using a hint (public member function) |
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erases elements (public member function) |
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swaps the contents (public member function) |
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Lookup | |||
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returns the number of elements matching specific key (public member function) |
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finds element with specific key (public member function) |
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returns range of elements matching a specific key (public member function) |
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returns an iterator to the first element not less than the given value (public member function) |
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returns an iterator to the first element greater than a certain value (public member function) |
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Observers | |||
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returns the function that compares keys (public member function) |
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returns the function that compares keys (public member function) |
[edit] Non-member functions
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lexicographically compares the values in the container (function) |
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specializes the std::swap() algorithm (function template) |