File Handling In C

How to implement array in C++ plus plus using function.

What is the use of having a stack based buffer overrun detection?

Explain about tuple in visual c ?

Explain pointer to the constant and constant pointer ?

What is the use of SendMessage() and PostMessage() and difference between them ?

Name few classes in MFC which are not derived from CObject class ?

Why Array Index starts from Zero?

Is it possible to have Virtual Constructor? If yes, how? If not, Why not possible?

. How can you have controlled access to the resources, i.e in a thread-safe manner?

Which are the various message map macros ?

Can you explain IUnknown interface used in COM ?