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CPP Set


Sets in CPP are used to store sorted key. They are the associative containers. Each key in a set is unique. CPP facilitates insertion and deletion of a key in a set but do not allow any modifications.

Member Functions of a CPP Set:

Allocator:

FUNCTION USES
get_allocator To return an allocator object to construct the set.

 

 Capacity:

FUNCTION USES
empty() To determine whether the set is empty or not.
max_size() To determine the maximum size of the set.
size() To determine number of elements in the set.

 

Constructor/Destructor:

FUNCTION USES
(constructor) To construct a set.
(destructor) To destruct a set.
operator= To copy the elements of the set to another set.

 

Iterators:

FUNCTION USES
begin() To point to the first element of the set.
cbegin() To return a constant iterator to the beginning of the set.
cend() To return a constant iterator to the end.
crbegin() To return a const reverse iterator to the beginning.
crend() To return a const reverse iterator to the end.
end() To return an iterator to the end.
rbegin() To return a reverse iterator to the beginning.
rend() To return a reverse iterator to the end.

 

Modifiers:

FUNCTION USES
clear() To remove all the elements of the set.
erase() To delete the specified element.
emplace() To construct and insert a new element at a specified position.
emplace_hint() To construct and insert a new element at a specified position by hint.
insert() To insert a new element in the set..
swap() To exchange the contents of two sets.

 

Non-Member Overloaded Functions:

FUNCTION USES
operator== To determine whether the two sets are equal or not.
operator!= To determine whether the two sets are equal or not.
operator<= To determine whether the first set is less than or equal to other or not.
operator< To determine whether the first set is less than other or not.
operator>= To determine whether the first set is greater than equal to other or not.
operator> To determine whether the first set is greater than other or not.
swap() To exchange the contents of two sets.

 

Observers:

FUNCTION USES
key_comp To return a copy of key comparison object.
value_comp To return a copy of value comparison object.

 

Operations:

FUNCTION USES
count To get the number of elements matching with given key.
equal_range To get the range of elements matches with given key.
Find To find an element with given key.
lower_bound To get an iterator to lower bound.
upper_bound To get an iterator to upper bound.

 

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