C++ Queue push() Function

by Online Tutorials Library July 22, 2022

C++ Queue push() Function

C++ Queue push() function is used for adding new elements at the rear of the queue. The function is implied for performing the insertion related operations.

Syntax

Parameters

value: The parameter represents the value to which the element is initialized. That is the value of the newly added element in the queue.

Return value

The function has no return type, and it only adds a new element to the queue.

Example 1

  #include <iostream>  #include <queue>  int main()  {  std::queue<int> newqueue;  int qint;  std::cout << “Enter some valid integer values(press 0 to exit)”;  do  {  std::cin>> qint;  newqueue.push(qint);  }  while (qint);  std::cout<< “newqueue contains: “;  while(!newqueue.empty())  {  std::cout <<” ” <<newqueue.front();  newqueue.pop();  }  return 0;  }  

Output:

Enter some valid integer values(press 0 to exit)  1  2  3  5  6  7  0  newqueue contains: 1 2 3 5 6 7 0

Example 2

  #include <iostream>  #include <queue>  using namespace std;  int main()  {  queue<int> newqueue;  newqueue.push(34);  newqueue.push(68);  while(!newqueue.empty())  {  cout<<” “<<newqueue.front();  newqueue.pop();  }  }  

Output:

34 68

Complexity

One call is made to the pushback on the container that is underlying.

Data races

The modification is made to the container, and the elements contained.

Exception Safety

Guarantee as equivalent to the operations that are performed on the underlying container object is provided.

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C++ Queue push() Function

C++ Queue push() Function

Syntax

Parameters

Return value

Example 1

Example 2

Complexity

Data races

Exception Safety

What is boot

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