example2_dynamic_memory_allocation.cpp

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#include <iostream>

int main() {
    int* ptr = new int(42);  // Dynamically allocate an integer and initialize it to 42

    std::cout << "Value pointed to by ptr: " << *ptr << std::endl;

    delete ptr;  // Free the dynamically allocated memory

    // ptr now becomes a dangling pointer; it points to a location that has been freed.
    ptr = nullptr;  // It's good practice to set ptr to nullptr after deletion

    return 0;
}