In this section you can learn and practice C Programming Questions based on "Functions" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.
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Where can I get C Programming Functions Interview Questions and Answers (objective type, multiple choice)?
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How to solve C Programming Functions problems?
You can easily solve all kind of C Programming questions based on Functions by practicing the objective type exercises given below, also get shortcut methods to solve C Programming Functions problems.
The keyword return is used to transfer control from a function back to the calling function.
int add(int, int); /* Function prototype */
int a = 4, b = 3, c;
c = add(a, b);
printf("c = %d\n", c);
int add(int a, int b)
/* returns the value and control back to main() function */
A call stack or function stack is used for several related purposes, but the main reason for having one is to keep track of the point to which each active subroutine should return control when it finishes executing.
A stack overflow occurs when too much memory is used on the call stack.
Here function main() is called repeatedly and its return address is stored in the stack. After stack memory is full. It shows stack overflow error.