void can be used
| A. | as a data-type of a function that returns nothing to its calling environment |
| B. | inside the brackets of a function that does not need any argument |
| C. | in an expression |
| D. | both (a) & (b) |
|
Option: D Explanation : Click on Discuss to view users comments. |
Any C program
| A. | must contain at least one function |
| B. | need not contain any function |
| C. | needs input data |
| D. | none of the above |
|
Option: A Explanation : Click on Discuss to view users comments. |
The following program
main ()
{ int a = 4;
change { a };
printf ("%d", a);
}
change (a)
int a;
{
printf("%d", ++a);
}
outputs
| A. | 55 |
| B. | 45 |
| C. | 54 |
| D. | 44 |
|
Option: C Explanation : change (a) , prints 5 but the value of 'a' in main ( ) is still 4. So main( ) will print 4. Click on Discuss to view users comments. |
The following program
main()
{
inc(); inc(); inc();
}
inc()
{
static int x;
printf("%d", ++x);
}
| A. | prints 012 |
| B. | prints 123 |
| C. | prints 3 consecutive, but unpredictable numbers |
| D. | prints 111 |
|
Option: B Explanation : By default x will be initialized to 0. Since its storage class is static, it presents its exit value ( and forbids reinitialization on re-entry ). So, 123 will be printed. Click on Discuss to view users comments. |
The following program
main()
{
int abc();
abc ();
( *abc) ();
}
int abc( )
{
printf ("come");
}
| A. | results in a compilation error |
| B. | prints come come |
| C. | results in a run time |
| D. | prints come come |
|
Option: B Explanation : The function abc can be invoked as abc( ) or ( *abc ) ( ). Both are two different ways of doing the same thing. Click on Discuss to view users comments. |
