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C++ Queue Library - queue() Function
Description
The C++ initialize constructor std::queue::queue() constructs a queue object and assigns internal container by a copy of ctnr.
Declaration
Following is the declaration for std::queue::queue() constructor form std::queue header.
C++11
explicit queue (const container_type& ctnr);
Parameters
ctnr − Container type which is second parameter of class template.
Return value
Constructor never returns value.
Time complexity
Linear i.e. O(n)
Example
The following example shows the usage of std::queue::queue() constructor.
#include <iostream> #include <queue> using namespace std; int main(void) { auto it = {1, 2, 3, 4, 5}; queue<int> q(it); cout << "Queue contents are" << endl; while (!q.empty()) { cout << q.front() << endl; q.pop(); } return 0; }
Let us compile and run the above program, this will produce the following result −
Queue contents are 1 2 3 4 5
queue.htm
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