What can be the use of Function on C programming to enhance the output and procedure of the program?

In writing a program, how do you prevent a recursive function from running endlessly?

Can I extend an array after it is full?

If so how?

Please explain in detail. My array shows full after 30 iteration s.

My array size is 30.

How is an array Different from Linked list in C? Please Answer point wise. Can A array fit into a linked list?

Please Help.

Hi i am learning C programming language.

I am currently trying to do some graphics programming on Microsoft visual basic.

But i am not getting any options there for it.

Is it possible to do graphics work using C on Microsoft visual basic 6.0?

What kind of code I should use on C programing that allows the user to type a certain letter to terminate the program and does not terminate it until it is the same letter the programmer asks.?

I need to know how to use the Oracle language and the C++ Programming or it is even possible to use them together.

What is the best code to explain and perform the while loop on C programming (with output)?

What can I do to change the default color of the Text on C programming, (this should appear in the output window)?

How can I combine the C programming and database, provided that my program requires random choice of data?