What is (void*)0?

Home | Discussion Forum
Taiyari24Hour

What is (void*)0?



View More Related Question

1) What will be the output of the program ?

  #include<stdio.h>
int main()
{
int x=30, *y, *z;
y=&x; /* Assume address of x is 500 and integer is 4 byte size */
z=y;
*y++=*z++;
x++;
printf("x=%d, y=%d, z=%d\n", x, y, z);
return 0;
}

2) What will be the output of the program ?

 #include<stdio.h>
int main()
{
char str[20] = "Hello";
char *const p=str;
*p='M';
printf("%s\n", str);
return 0;
}

3) In which header file is the NULL macro defined?

4) Comment on the following C statement.

  const int *ptr;

5) What will be the output of the following C code?

 #include <stdio.h> int *f();
int main()
{
int *p = f();
printf("%d\n", *p);
}

int *f()
{
int *j = (int*)malloc(sizeof(int));
*j = 10;
return j;
}

UP Gk Online Test

taiyari24hour.com

Study 2 Online Says....
Kindly log in or signup.