Structures, Unions, Enums problems
- 1. Is there easy way to print enumeration values symbolically?
Options- A. Yes
- B. No Discuss
Correct Answer: No
Explanation:
You can write a function of your own to map an enumeration constant to a string.
- 2. The elements of union are always accessed using & operator
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 3. Is it necessary that the size of all elements in a union should be same?
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 4. By default structure variable will be of auto storage class
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 5. Will the following declaration work?
typedef struct s { int a; float b; }s;
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 6. Will the following code work?
#include<stdio.h> #include<malloc.h> struct emp { int len; char name[1]; }; int main() { char newname[] = "Rahul"; struct emp *p = (struct emp *) malloc(sizeof(struct emp) -1 + strlen(newname)+1); p->len = strlen(newname); strcpy(p -> name, newname); printf("%d %s\n", p->len, p->name); return 0; }
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
Explanation:
The program allocates space for the structure with the size adjusted so that the
name field can hold the requested name.
- 7. A pointer union CANNOT be created
Options- A. Yes
- B. No Discuss
Correct Answer: No
More in C Programming:
Programming
Copyright ©CuriousTab. All rights reserved.