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- Question
Point out the error, if any, in the following program. main() { int a = 10; void f(); a = f(); printf ( "\n %d", a ); } void f() { printf ( "\n Hi "); }
- Correct Answer
- In spite of defining the function f() as returning void, the program is trying to collect the value returned by f() in the variable a
- 1. There is a mistake in the following code. Add a statement in it to remove it. main() { int a; a = f (10, 3.14) ; printf ( " %d ", a ); } f (int aa, float bb) { return ( ( float ) aa + bb ); } Discuss
- 2. What would be the output of the following program? main() { float a = 0.7; if ( a < 0.7f ) printf ( " C "); else Printf ( " C++ "); } Discuss
- 3. What would be the output of the following program? main() { printf (" %d%d%d ", sizeof (3.14f), sizeof (3.14), sizeof (3. 141); } Discuss
- 4. Which error are you likely to get when you run the following program? main() { struct emp { char name[20]; float sal; }; struct emp e[10]; int i; for ( i = 0 ; i <= 9; i++) scanf ( "%s %f" , e[i].name, &e[i].sal ); } Discuss
- 5. In the following code in which order the functions would be called? a = ( f1 ( 23,14 ) * f2 ( 12/4) ) + f3() ; Discuss
- 6. Will the following function work? f1 ( int a, int b ) { return ( f2 (20) ); } f2 ( int a ) { return ( a * a ); } Discuss
- 7. Indicate what would the SWAP macro be expanded to on preprocessing. Would the code compile? #define SWAP (a, b, c ) (c t; t = a, a = b, b = t; ) main() { int x = 10, y = 20; SWAP (x, y, int ); printf ( " %d%d ", x, y); } Discuss
- 8. What would be the output of the following program assuming that the array beigns at location 1002? main() { int a[3][4] = { 1 , 2 , 3 , 4 5, 6 , 7, 8 9, 10 , 11, 12 }; Printf ("\n%u %u %u", a[0] + 1, *( a[0] + 1), *( *(a + 0) + 1) ); } Discuss
- 9. Undefined reference to 'pthread_create' How to Fix this error? Discuss
- 10. In HTML, ___________ tag is used to construct drop-down list boxes and scrolling list boxes.
Options- A.
- B.
- C.
Programming problems
Search Results
Correct Answer: Add the following function prototype in main (): float f ( int, float );
Correct Answer: C++
Correct Answer: 4 8 10
Correct Answer: Floating point formats not linked
Correct Answer: The order may vary from compiler to compiler Here the multiplication will happen before the addition , but in which order the functions would be called is undefined In an arithmetic expression the parentheses tell the compiler which operands go with which operators but do not force the compiler to evaluate everything within the parentheses first
Correct Answer: Yes
Correct Answer: ( int t ; t = a, a = b, b = t ;); This code won't compile since declaration of t cannot occur within parentheses
Correct Answer: 1004 2 2
Correct Answer: This is a common error while compiling C program in Linux This error occurs when you are using pthread_create function to create threads in your programs To fix this problem ensure following points: Include header file pthreadh in your program Add ?lpthread linker flag with compilation command 1- Include Header file #include
Correct Answer: <SELECT>
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