How to Create Stack of Tuples in C++?

In C++, a stack is a container adapter that provides a LIFO (Last In First Out) order of element insertion and deletion which is only possible at the end. A tuple is a container that can store elements of different types. In this article, we will learn how to create a stack of tuples in C++.

Example

Input:
myTuple1 = {1, “C++”, 4.5};
myTuple2 = {2, “Java”, 3.9};

Output:
myStack = [ {1, “C++”, 4.5},
                      {2, “Java”, 3.9} ]

Stack of Tuples in C++

To create a stack of tuples in C++, we have to declare the type of elements of the stack of type tuples by passing it as a template parameter in the stack declaration.

Syntax to Declare a Stack of Tuple in C++

 stack< tuple< int, char>> tupleStack;

C++ Program to Create a Stack of Tuples

C++

// C++ Program to illustrate how to create a stack of tuples 
#include <iostream> 
#include <stack> 
#include <tuple> 

using namespace std; 

int main() 
{ 

    // Initialize two tuples 

    tuple<int, string, double> myTuple1 

        = make_tuple(1, "C++", 4.5); 

    tuple<int, string, double> myTuple2 

        = make_tuple(2, "Java", 3.9); 

    // Create a stack of tuples 

    stack<tuple<int, string, double> > myStack; 

    myStack.push(myTuple1); 

    myStack.push(myTuple2); 

    // Print the stack of tuples 

    while (!myStack.empty()) { 

        tuple<int, string, double> topTuple = myStack.top(); 

        myStack.pop(); 

        cout << "{" << get<0>(topTuple) << ", "

             << get<1>(topTuple) << ", " << get<2>(topTuple) 

             << "}, "; 

    } 

    cout << endl; 

    return 0; 
}