Online C Programming Test - C Programming Test 9

What will be the output of the program?

#include<stdio.h>
int main()
{
    int x=1, y=1;
    for(; y; printf("%d %d\n", x, y))
    {
        y = x++ <= 5;
    }
    printf("\n");
    return 0;
}

Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1

Which of the following range is a valid long double (Turbo C in 16 bit DOS OS) ?

Will the printf() statement print the same values for any values of a?

#include<stdio.h>
int main()
{
    float a;
    scanf("%f", &a);
    printf("%f\n", a+a+a);
    printf("%f\n", 3*a);
    return 0;
}

What will be the output of the program?

#include<stdio.h>
#include<stdlib.h>

int main()
{
    int i=0;
    i++;
    if(i<=5)
    {
        printf("IndiaBIX");
        exit(1);
        main();
    }
    return 0;
}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    int i, a[] = {2, 4, 6, 8, 10};
    change(a, 5);
    for(i=0; i<=4; i++)
        printf("%d, ", a[i]);
    return 0;
}
void change(int *b, int n)
{
    int i;
    for(i=0; i<n; i++)
        *(b+1) = *(b+i)+5;
}

What will be the output of the program if the array begins 1200 in memory?

#include<stdio.h>

int main()
{
    int arr[]={2, 3, 4, 1, 6};
    printf("%u, %u, %u\n", arr, &arr[0], &arr);
    return 0;
}

Which of the following is correct way to define the function fun() in the below program?

#include<stdio.h>

int main()
{
    int a[3][4];
    fun(a);
    return 0;
}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    printf(5+"IndiaBIX\n");
    return 0;
}

What will be the output of the program ?

#include<stdio.h>

int main()
{
    enum status {pass, fail, absent};
    enum status stud1, stud2, stud3;
    stud1 = pass;
    stud2 = absent;
    stud3 = fail;
    printf("%d %d %d\n", stud1, stud2, stud3);
    return 0;
}

Point out the error in the program?

struct emp
{
    int ecode;
    struct emp e;
};

What will be the output of the program ?

#include<stdio.h>

int main()
{
    FILE *ptr;
    char i;
    ptr = fopen("myfile.c", "r");
    while((i=fgetc(ptr))!=NULL)
        printf("%c", i);
    return 0;
}

While calling the fprintf() function in the format string conversion specifier %s can be used to write a character string in capital letters.

The maximum combined length of the command-line arguments including the spaces between adjacent arguments is

Which of the following statements are correct about the program?

#include<stdio.h>
char *fun(unsigned int num, int base);

int main()
{
    char *s;
    s=fun(128, 2);
    s=fun(128, 16);
    printf("%s\n",s);
    return 0;
}
char *fun(unsigned int num, int base)
{
    static char buff[33];
    char *ptr = &buff[sizeof(buff)-1];
    *ptr = '\0';
    do
    {
        *--ptr = "0123456789abcdef"[num %base];
        num /=base;
    }while(num!=0);
    return ptr;
}

What will be the output of the program?

#include<stdio.h>

int main()
{
    const c = -11;
    const int d = 34;
    printf("%d, %d\n", c, d);
    return 0;
}

Point out the correct statement will let you access the elements of the array using 'p' in the following program?

#include<stdio.h>
#include<stdlib.h>

int main()
{
    int i, j;
    int(*p)[3];
    p = (int(*)[3])malloc(3*sizeof(*p));
    return 0;
}

What do the following declaration signify?

char *arr[10];

Point out the error in the following program.

#include<stdio.h>
#include<string.h>

int main()
{
    char str1[] = "Learn through IndiaBIX\0.com",  str2[120];
    char *p;
    p = (char*) memccpy(str2, str1, 'i', strlen(str1));
    *p = '\0';
    printf("%s", str2);
    return 0;
}

Point out the error in the following program.

#include<stdio.h>

int main()
{
    char str[] = "IndiaBIX";
    printf("%.#s %2s", str, str);
    return 0;
}