What is the output of the program?

    #include <stdio.h>
   
    // Assume size of integer as 4 bytes
   
    void main()
    {
        char (*p)[3];
        printf("\n %d %d", sizeof(*p), sizeof(p));
    }

1. 12 4
2. 3 4
3. 1 3
4. 4 12

What is the output of the program?

    #include <stdio.h>

    void main()
    {
        const char* ptr = "Genesis";
        printf(" %c ", (*++ptr)++);
    }

1. No error, output is e
2. No error, output is n
3. No error, output is G
4. l-value specifies const object

The functionality of "ferror(FILE *)" is

1. ferror is a macro that tests the given stream for a read error only
2. ferror is a macro that tests the given stream for a file open error
3. ferror is a macro that tests the given stream for a read or write error
4. ferror is a macro that tests the given stream for a file close error

Which of the following function does not return an integer value?

1. printf
2. scanf
3. strcpy
4. strlen

What is the output of the program?

    #include <stdio.h>
    main()
    {
        static char Arr[8] = "Genesis";
        char* ptr = &Arr[6] - 3;
        printf("\n %s", ptr);
    }

1. e
2. sis
3. esis
4. n

Which of the following functions support dynamic memory allocation?

1. malloc
2. realloc
3. calloc
4. All the three A, B and C

What is the significance of putw() function?

1. writes only character data to the file in text mode
2. writes only integer data to the file in binary mode
3. writes integer data to the file in text mode
4. writes character data to the file in binary mode

What is the output of the program?

    #include <stdio.h>
    main()
    {
        for( ; ; )
            main();
    }

1. Error: syntax error at or before;
2. Executes once
3. It will result in infinite loop until stack overflow occurs
4. Error: illegal call to function main()

What is the output of the program?

    #include <stdio.h>

    // Assume integer is 4 bytes
        
    struct {
        char *p;
        int (*fun)();
    } a;

    void main()
    {
        printf("\n %d %d %d ", sizeof(a), sizeof(a.p), sizeof(a.fun));
    }

1. 8 4 4
2. 5 1 4
3. 6 2 4
4. Error: pointer to functions is not allowed in structures

What is the output of the program?

    #include <stdio.h>

    void main()
    {
        int Var = 90;
        if(Var += Var == ++Var == 89)
            printf(" %d ",Var);
    }

1. 180
2. 91
3. 90
4. 182

Which of the functions always write the output to Video Display Unit?

1. puts
2. putc
3. putch
4. fputs

Which of the declarations cannot be performed above main()?

1. variables of auto storage class
2. enum declaration
3. variables of extern storage class
4. static union declaration

What is the output of the program if the input is 103?

    main()
    {
        int p = 234;
        printf(" %d ", printf("%d", p), scanf("%d", &p));
    }

1. 3 103
2. 103
3. 103 3
4. 103 2

What is the difference between scanf() and gets() while scanning a bunch of characters??

1. scanf() takes input from stdin, but gets() gets input from console
2. scanf() put a null at the end of the string, but gets() does not
3. gets() can scan even the spaces, but scanf() cannot
4. None of the above

Which of the functions compares two strings ignoring the case?

1. strcmp
2. strncmp
3. stricmp
4. strcpy

What is the output of the program?

    int fun(int num)
    {
        return printf(" %d ", num);
    }

    void main()
    {
        printf(" Genesis ", fun(123), " & Genesis");
    }

1. 123 Genesis
2. Genesis 123
3. 3 Genesis
4. None of the above

What is the output of the program?

    void print(char *s)
    {
        if(*s)
            print(++s);
        printf("%c", *s);
    }

    main()
    {
        char str[] = "Genesis";
        print(str);
    }

1. genesis
2. sisene
3. siseneg
4. None of the above

Where will the output of the program be printed?

    main()
    {
        fprintf(stdprn, "Genesis InSoft Limited") ;
    }

1. Standard output device
2. Standard error output device
3. Standard auxiliary device
4. Standard printer

What is the output of the program?

    const int MAX = 15;
    void main()
    {
        enum e{a, b, MAX};
        printf("%d %d %d", a, b, MAX);
    }

1. 0 1 2
2. 1 2 3
3. 1 2 15
4. 0 1 15

What is the purpose of the fcloseall() function?

1. closes all the streams including standard streams
2. closes all the streams other than standard streams
3. closes all the input streams
4. closes all the output streams