Answer Posted / priya

The malloc function allows the programmer to create a block of memory of a given size:

malloc ( long integer lBlockSize ) returns void *

If we decide, during the execution of the program, that we might need to expand, or contract this memory block, we can use the realloc function:

realloc ( void * pBlock, long int lNewBlockSize ) returns void *

When the memory block is no longer used, then it must be returned back to the operating system, by calling the free function:

free ( void * pBlock )

What is the difference between call by value and call by reference in c?

621

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Why doesnt the call scanf work?

676

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What is the return type of sizeof?

596

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What is the value of a[3] if integer a[] = {5,4,3,2,1}?

674

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What are valid signatures for the Main function?

702

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while loop contains parts a) initialisation, evalution of an expression,increment /decrement b) initialisation, increment/decrement c) condition evalution d) none of the above

742

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Is there a way to have non-constant case labels (i.e. Ranges or arbitrary expressions)?

583

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What is define directive?

643

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What is difference between scanf and gets?

615

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What is static and volatile in c?

781

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What are different types of variables in c?

571

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Can you mix old-style and new-style function syntax?

664

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If a five digit number is input through the keyboard, write a program to print a new number by adding one to each of its digits.For example if the number that is input is 12391 then the output should be displayed as 23402

3249

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What does nil mean in c?

673

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This is a variation of the call_me function in the previous question:call_me (myvar)int *myvar;{ *myvar += 5; }The correct way to call this function from main() will be a) call_me(myvar) b) call_me(*myvar) c) call_me(&myvar) d) expanded memory

734

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