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- Question
Undefined reference to 'pthread_create' How to Fix this error?
- 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
#include 2- Compile command gcc mainc -o main -lpthread
- 1. 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
- 2. 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
- 3. Will the following function work? f1 ( int a, int b ) { return ( f2 (20) ); } f2 ( int a ) { return ( a * a ); } Discuss
- 4. 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 "); } Discuss
- 5. 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
- 6. In HTML, ___________ tag is used to construct drop-down list boxes and scrolling list boxes.
Options- A.
- B.
- C.
- 7. Unreachable code would best be found using
Options- A. code inspections
- B. a static analysis tool
- C. code reviews
- D. a test management tool Discuss
- 8. What is "bug leakage?" and what is "bug release?" Discuss
- 9. main() { float me = 1.1; double you = 1.1; if(me==you) printf("yes"); else printf("No"); }
Options- A. Yes
- B. No
- C. Both
- D. Compilation error Discuss
- 10. Which is the simplest file structure?
Options- A. Sequential
- B. Indexed
- C. Random
- D. None Discuss
Programming problems
Search Results
Correct Answer: 1004 2 2
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: Yes
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
Correct Answer: Add the following function prototype in main (): float f ( int, float );
Correct Answer: <SELECT>
Correct Answer: code reviews
Explanation:
Code review is a software quality assurance activity in which one or several humans check a program mainly by viewing and reading parts of its source code, and they do so after implementation or as an interruption of implementation.
Correct Answer: A bug leakage results when a bug is detected which should have been detected in earlier builds/versions of the application A defect which exists during testing yet unfound by the tester which is eventually found by the tester/end-user is also called bug leakage A bug release is when a particular version of s/w is released with a set of known bug(s)/defect(s) These bugs are usually low severity and/or low priority bugs It is done when the company can afford the existence of bug in the released s/w rather than the time/cost for fixing it in that particular version These bugs are usually mentioned in the Release Notes
Correct Answer: No
Explanation:
For floating point numbers (float, double, long double) the values cannot be predicted exactly. Depending on the number of bytes, the precession with of the value represented varies. Float takes 4 bytes and long double takes 10 bytes. So float stores 0.9 with less precision than long double.
Correct Answer: Sequential
Explanation:
Sequential is the simplest file structure
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