std::deque<T,Allocator>::size (3) - Linux Manuals
std::deque<T,Allocator>::size: std::deque<T,Allocator>::size
Command to display std::deque<T,Allocator>::size manual in Linux: $ man 3 std::deque<T,Allocator>::size
NAME
std::deque<T,Allocator>::size - std::deque<T,Allocator>::size
Synopsis
size_type size() const; (until C++11)
size_type size() const noexcept; (since C++11)
Returns the number of elements in the container, i.e. std::distance(begin(), end()).
Parameters
(none)
Return value
The number of elements in the container.
Complexity
Constant.
Example
The following code uses size to display the number of elements in a std::deque:
// Run this code
#include <deque>
#include <iostream>
int main()
{
std::deque<int> nums {1, 3, 5, 7};
std::cout << "nums contains " << nums.size() << " elements.\n";
}
Output:
nums contains 4 elements.
See also
checks whether the container is empty
empty (public member function)
returns the maximum possible number of elements
max_size (public member function)
changes the number of elements stored
resize (public member function)
Pages related to std::deque<T,Allocator>::size
- std::deque<T,Allocator>::shrink_to_fit (3) - std::deque<T,Allocator>::shrink_to_fit
- std::deque<T,Allocator>::swap (3) - std::deque<T,Allocator>::swap
- std::deque<T,Allocator>::assign (3) - std::deque<T,Allocator>::assign
- std::deque<T,Allocator>::at (3) - std::deque<T,Allocator>::at
- std::deque<T,Allocator>::back (3) - std::deque<T,Allocator>::back
- std::deque<T,Allocator>::begin,std::deque<T,Allocator>::cbegin (3) - std::deque<T,Allocator>::begin,std::deque<T,Allocator>::cbegin
- std::deque<T,Allocator>::clear (3) - std::deque<T,Allocator>::clear
- std::deque<T,Allocator>::deque (3) - std::deque<T,Allocator>::deque
- std::deque<T,Allocator>::emplace (3) - std::deque<T,Allocator>::emplace
- std::deque<T,Allocator>::emplace_back (3) - std::deque<T,Allocator>::emplace_back
- std::deque<T,Allocator>::emplace_front (3) - std::deque<T,Allocator>::emplace_front
- std::deque<T,Allocator>::empty (3) - std::deque<T,Allocator>::empty
- std::deque<T,Allocator>::end,std::deque<T,Allocator>::cend (3) - std::deque<T,Allocator>::end,std::deque<T,Allocator>::cend
- std::deque<T,Allocator>::erase (3) - std::deque<T,Allocator>::erase
- std::deque<T,Allocator>::front (3) - std::deque<T,Allocator>::front
- std::deque<T,Allocator>::get_allocator (3) - std::deque<T,Allocator>::get_allocator
- std::deque<T,Allocator>::insert (3) - std::deque<T,Allocator>::insert
- std::deque<T,Allocator>::max_size (3) - std::deque<T,Allocator>::max_size
- std::deque<T,Allocator>::operator= (3) - std::deque<T,Allocator>::operator=
- std::deque<T,Allocator>::operator[] (3) - std::deque<T,Allocator>::operator[]
- std::deque<T,Allocator>::pop_back (3) - std::deque<T,Allocator>::pop_back
- std::deque<T,Allocator>::pop_front (3) - std::deque<T,Allocator>::pop_front
- std::deque<T,Allocator>::push_back (3) - std::deque<T,Allocator>::push_back
- std::deque<T,Allocator>::push_front (3) - std::deque<T,Allocator>::push_front
- std::deque<T,Allocator>::rbegin,std::deque<T,Allocator>::crbegin (3) - std::deque<T,Allocator>::rbegin,std::deque<T,Allocator>::crbegin
- std::deque<T,Allocator>::rend,std::deque<T,Allocator>::crend (3) - std::deque<T,Allocator>::rend,std::deque<T,Allocator>::crend
- std::deque<T,Allocator>::resize (3) - std::deque<T,Allocator>::resize
- std::deque<T,Allocator>::~deque (3) - std::deque<T,Allocator>::~deque
- std::deque (3) - std::deque