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CuriousTab

CuriousTab

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Home C Programming Structures, Unions, Enums Comments

  • Question
  • Will the following declaration work?
    typedef struct s
    {
        int a;
        float b;
    }s;
    


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 


  • Structures, Unions, Enums problems


    Search Results


    • 1. By default structure variable will be of auto storage class

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 2. Is it necessary that the size of all elements in a union should be same?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 3. The elements of union are always accessed using & operator

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 4. Is there easy way to print enumeration values symbolically?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 5. If the following structure is written to a file using fwrite(), can fread() read it back successfully?
      struct emp
      {
          char *n;
          int age;
      };
      struct emp e={"CuriousTab", 15};
      FILE *fp;
      fwrite(&e, sizeof(e), 1, fp);
      

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 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
    • 7. A pointer union CANNOT be created

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 8. What will be the output of the program if it is executed like below?
      cmd> sample
      /* sample.c */
      #include<stdio.h>
      
      int main(int argc, char **argv)
      {
          printf("%s\n", argv[argc-1]);
          return 0;
      }
      

    • Options
    • A. 0
    • B. sample
    • C. samp
    • D. No output
    • Discuss
    • 9. What will be the output of the program (myprog.c) given below if it is executed from the command line?
      cmd> myprog one two three
      /* myprog.c */
      #include<stdio.h>
      #include<stdlib.h>
      
      int main(int argc, char **argv)
      {
          printf("%s\n", *++argv);
          return 0;
      }
      

    • Options
    • A. myprog
    • B. one
    • C. two
    • D. three
    • Discuss
    • 10. What will be the output of the program (sample.c) given below if it is executed from the command line?
      cmd> sample friday tuesday sunday
      /* sample.c */
      #include<stdio.h>
      
      int main(int sizeofargv, char *argv[])
      {
          while(sizeofargv)
              printf("%s", argv[--sizeofargv]);
          return 0;
      }
      

    • Options
    • A. sample friday tuesday sunday
    • B. sample friday tuesday
    • C. sunday tuesday friday sample
    • D. sunday tuesday friday
    • Discuss


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