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- Question
What is stderr?
Options- A. standard error
- B. standard error types
- C. standard error streams
- D. standard error definitions
- Correct Answer
- standard error streams
ExplanationThe standard error(stderr) stream is the default destination for error messages and other diagnostic warnings. Like stdout, it is usually also directed to the output device of the standard console (generally, the screen). - 1. Which of the following statements correct about k used in the below statement?
char ****k;
Options- A. k is a pointer to a pointer to a pointer to a char
- B. k is a pointer to a pointer to a pointer to a pointer to a char
- C. k is a pointer to a char pointer
- D. k is a pointer to a pointer to a char Discuss
- 2. What will be the output of the program?
#include<stdio.h> void fun(void *p); int i; int main() { void *vptr; vptr = &i; fun(vptr); return 0; } void fun(void *p) { int **q; q = (int**)&p; printf("%d\n", **q); }
Options- A. Error: cannot convert from void** to int**
- B. Garbage value
- C. 0
- D. No output Discuss
- 3. What will be the output of the program?
#include<stdio.h> #include<string.h> int main() { static char s[] = "Hello!"; printf("%d\n", *(s+strlen(s))); return 0; }
Options- A. 8
- B. 0
- C. 16
- D. Error Discuss
- 4. What will be the output of the program?
#include<stdio.h> int main() { int i=4, j=8; printf("%d, %d, %d\n", i|j&j|i, i|j&&j|i, i^j); return 0; }
Options- A. 4, 8, 0
- B. 1, 2, 1
- C. 12, 1, 12
- D. 0, 0, 0 Discuss
- 5. What will you do to treat the constant 3.14 as a float?
Options- A. use float(3.14f)
- B. use 3.14f
- C. use f(3.14)
- D. use (f)(3.14) Discuss
- 6. What will be the output of the program if value 25 given to scanf()?
#include<stdio.h> int main() { int i; printf("%d\n", scanf("%d", &i)); return 0; }
Options- A. 25
- B. 2
- C. 1
- D. 5 Discuss
- 7. In the statement expression1 >> expression2. if expression1 is a signed integer with its leftmost bit set to 1 then on right shifting it the result of the statement will vary from computer to computer
Options- A. True
- B. False Discuss
- 8. What do the following declaration signify?
int *ptr[30];
Options- A. ptr is a pointer to an array of 30 integer pointers.
- B. ptr is a array of 30 pointers to integers.
- C. ptr is a array of 30 integer pointers.
- D. ptr is a array 30 pointers. Discuss
- 9. Range of float id -2.25e+308 to 2.25e+308
Options- A. True
- B. False Discuss
- 10. What will be the output of the program (in Turbo C under DOS)?
#include<stdio.h> int main() { char huge *near *far *ptr1; char near *far *huge *ptr2; char far *huge *near *ptr3; printf("%d, %d, %d\n", sizeof(ptr1), sizeof(ptr2), sizeof(ptr3)); return 0; }
Options- A. 4, 4, 8
- B. 2, 4, 4
- C. 4, 4, 2
- D. 2, 4, 8 Discuss
More questions
Correct Answer: k is a pointer to a pointer to a pointer to a pointer to a char
Correct Answer: 0
Correct Answer: 0
Correct Answer: 12, 1, 12
Correct Answer: use 3.14f
Explanation:
Given 3.14 is a double constant.
To specify 3.14 as float, we have to add f to the 3.14. (i.e 3.14f)
To specify 3.14 as float, we have to add f to the 3.14. (i.e 3.14f)
Correct Answer: 1
Explanation:
The scanf function returns the number of input is given.
printf("%d\n", scanf("%d", &i)); The scanf function returns the value 1(one).
Therefore, the output of the program is '1'.
Correct Answer: True
Correct Answer: ptr is a array of 30 pointers to integers.
Correct Answer: False
Explanation:
False, The range of float is -3.4e+38 to 3.4e+38.
Correct Answer: 4, 4, 2
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