Consider the following code snippet. What will be the output?#include <iostream>int main() { int* ptr = new int(5); delete ptr; std::cout << *ptr << std::endl; return 0;}50Undefined behaviorCompilation error
Question
Consider the following code snippet. What will be the output?#include <iostream>int main() { int* ptr = new int(5); delete ptr; std::cout << *ptr << std::endl; return 0;}50Undefined behaviorCompilation error
Solution
The output of this code will be undefined behavior. This is because the pointer ptr is deleted before it is used. After delete ptr; is called, ptr is a dangling pointer, meaning it points to memory that has been freed/deallocated. Trying to access such a pointer (like with *ptr) will lead to undefined behavior.
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