Pointers

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C Programming

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  1. What will be the output of the following C code?
    #include <stdio.h>
        int main()
        {
            void *ptr1;
            int var[5] = {50, 60, 70, 80, 90};
            ptr1 = &var[3];
            int *ptr2 = &var[4];
            int m = (int*)ptr1 - ptr2;
            printf("%d\n", m);
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    -1

  1. What will be the output of the following C code?
    #include <stdio.h>
        int main()
        {
            void *ptr1;
            int num[5] = {10, 20, 30, 40, 80};
            ptr1 = &num[4];
            int *ptr2 = &num[3];
            int R = ptr1 - ptr2;
            printf("%d\n", R);
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    Compilation Error

    main.c: In function ‘main’:
    main.c:8:22: error: invalid operands to binary - (have ‘void *’ and ‘int *’)
             int R = ptr1 - ptr2;

  1. What will be the output of the following C code?
    #include <,stdio.h>
        void main()
        {
            char *n= "KRISHANA";
            char *m = n + 3;
            printf("%c %c", *m, n[5]);
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    S A

  1. What will be the output of the following C code?
    #include <stdio.h>
        void main()
        {
            char *str = "SUJIT";
            char *ptr = str * 5;
            printf("%c\t%c", *ptr, str[3]);
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    Compilation Error

    main.c: In function ‘main’:
    main.c:5:25: error: invalid operands to binary * (have ‘char *’ and ‘int’)
             char *ptr = str * 5;

  1. What will be the output of the following C code?
    #include <stdio.h>
        void main()
        {
            char *str = "InterviewMania";
            char *ntr = "Mania";
            char *ptr = str + ntr;
            printf("%c\t%c", *ptr, str[1]);
        }










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    Compilation Error

    main.c: In function ‘main’:
    main.c:6:25: error: invalid operands to binary + (have ‘char *’ and ‘char *’)
             char *ptr = str + ntr;