Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://www.tutorialspoint.com/cpp_standard_library/cpp_deque_move_constructor.htm below:

C++ Deque Library - deque() Function

The C++ move constructor std::deque::deque() constructs a deque with the contents of other using move semantics. Storage requirement for this container is fulfilled by internal allocator.

Following is the declaration for std::deque::deque() constructor form std::deque header.

deque (deque&& x);
deque (deque&& x, const allocator_type& alloc);

• alloc − The allocator object.

• x − Another deque object of same type.

Constructor never returns value.

This member function never throws exception.

Linear i.e. O(n)

The following example shows the usage of std::deque::deque() constructor.

#include <iostream>
#include <deque>

using namespace std;

int main(void) {

   deque<int> d1 = {1, 2, 3, 4, 5};
   deque<int> d2(move(d1));

   cout << "Size of deque d1 = " << d1.size() << endl;
   cout << endl;

   cout << "Contents of deque are" << endl;

   for (int i = 0; i < d2.size(); ++i)
      cout << d2[i] << endl; 

   return 0;
}

Let us compile and run the above program, this will produce the following result −

Size of deque d1 = 0

Contents of deque are
1
2
3
4
5

deque.htm

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4