In which case does a pointer become a dangling pointer?Marks : 1Negative Marks : 0Answer hereWhen it is declaredWhen it is used to allocate memoryWhen the memory it points to is reallocatedWhen the memory it points to is deallocatedClearNext
Question
In which case does a pointer become a dangling pointer?Marks : 1Negative Marks : 0Answer hereWhen it is declaredWhen it is used to allocate memoryWhen the memory it points to is reallocatedWhen the memory it points to is deallocatedClearNext
Solution
A pointer becomes a dangling pointer when the memory it points to is deallocated. This happens because the pointer is still pointing to a memory location that has been freed, hence it is not pointing to a valid object of the correct type. This can lead to undefined behavior if the program tries to access the memory through the dangling pointer.
Similar Questions
Which of the following scenarios can lead to a dangling pointer?Marks : 1Negative Marks : 0Answer hereReturning a pointer to a local variable from a functionUsing malloc() for memory allocationAssigning a pointer to another pointerDeclaring a pointer inside main()
In which case does a pointer become a dangling pointer?
Which of the following is not a consequence of using a dangling pointer?Marks : 1Negative Marks : 0Answer hereMemory leakSystem crashSegmentation faultNone of the mentioned options
What is the result of dereferencing a dangling pointer?Marks : 1Negative Marks : 0Answer hereThe program crashes.The pointer is set to NULL.The value at the memory location it points to.A compilation error.
Which of the following statements about dangling pointers is true?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.