Which of the following functions can be used to check if a stack is empty in C++?empty()size()top()pop()
Question
Which of the following functions can be used to check if a stack is empty in C++?empty()size()top()pop()
Solution
The function that can be used to check if a stack is empty in C++ is empty().
Here is how you can use it:
#include <stack>
#include <iostream>
int main()
{
std::stack<int> myStack;
// Check if stack is empty
if (myStack.empty())
std::cout << "Stack is empty";
else
std::cout << "Stack is not empty";
return 0;
}
In this code, myStack.empty() returns true if the stack is empty, otherwise it returns false. The other functions size(), top(), and pop() have different uses. size() returns the size of the stack, top() returns a reference to the top element in the stack, and pop() removes the top element from the stack.
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