The void pointer within C is a pointer that is not allied with any data types. This points to some data location within the storage means points to that address of variables. It is also known as a general-purpos
SomeFunc(s1); s1.PrintVal(); }In the above example when PrintVal() function iscalled it is called by the pointer that has beenfreed by the destructor in SomeFunc.Previous Question Next Question What is an incomplete type in C++? Differentiate between the message and method in C++?Interview...
In this tutorial, you will learn about thedangling pointer,void pointer,NULL, andwild pointerin C. I have already written a brief article on these topics. The main aim of this blog post to give you a quick introduction to these important concepts. Also, I will describe different states of...
A callback isany executable code that is passed as an argument to other code, which is expected to call back (execute) the argument at a given time [Source : Wiki]. ... In C, a callback function is a function that is called through a function pointer. Is it compulsory to declare ...
Pointer arithmetic for void pointer in C When a pointer to a particular type (say int, char, float, ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, how does it get to point x bytes ahead?
http://stackoverflow.com/questions/3523145/pointer-arithmetic-for-void-pointer-in-c When a pointer to a particular type (say int, char, float, ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, ...
Generate Coding Logic HR Interview Questions Computer Glossary Who is WhoC++ Pointer to Pointer (Multiple Indirection)Previous Quiz Next A pointer to a pointer is a form of multiple indirection or a chain of pointers. Normally, a pointer contains the address of a variable. When we define a poi...
That leaves us with the stack, and a few key questions: Where do we go? What function (or sequence of functions) is better to use remotely? The best approach is to try to indirectly turn the attack into an arbitrary write. We can, in fact, return into one of the memory copying func...
(Extra parentheses have been used in this definition to avoid any questions of precedence if E1 and E2 are complicated expressions.) Correctness requires only that one operand of [] have an array or pointer type and the other have an integral type. Thus A[3] is equivalent to 3[A], ...
How to use the structure of function pointer in C? Function pointer in structure in C. Suppose there is astructure in cthat contains function pointers, this function pointer stores the address of the function that calculates the salary of an employee (Grad1 and Grad2 officer). ...