What is the output for the following program
main()
{
int arr2D[3][3];
printf("%d\n", ((arr2D==* arr2D)&&(* arr2D ==
arr2D[0])) );
}
Answer / susie
Answer :
1
Explanation
This is due to the close relation between the arrays and
pointers. N dimensional arrays are made up of (N-1)
dimensional arrays.
arr2D is made up of a 3 single arrays that contains 3
integers each .
The name arr2D refers to the beginning of all the 3 arrays.
*arr2D refers to the start of the first 1D array (of 3
integers) that is the same address as arr2D. So the
expression (arr2D == *arr2D) is true (1).
Similarly, *arr2D is nothing but *(arr2D + 0), adding a zero
doesn’t change the value/meaning. Again arr2D[0] is the
another way of telling *(arr2D + 0). So the expression
(*(arr2D + 0) == arr2D[0]) is true (1).
Since both parts of the expression evaluates to true the
result is true(1) and the same is printed.
| Is This Answer Correct ? | 3 Yes | 0 No |
#ifdef something int some=0; #endif main() { int thing = 0; printf("%d %d\n", some ,thing); }
Which version do you prefer of the following two, 1) printf(“%s”,str); // or the more curt one 2) printf(str);
How to read a directory in a C program?
How do you create a really large matrix (i.e. 3500x3500) in C without having the program crash? I can only reach up to 2500. It must have something to do with lack of memory. Please help!
main() { int a=10,*j; void *k; j=k=&a; j++; k++; printf("\n %u %u ",j,k); }
Develop a routine to reflect an object about an arbitrarily selected plane
main() { printf("%d, %d", sizeof('c'), sizeof(100)); } a. 2, 2 b. 2, 100 c. 4, 100 d. 4, 4
18 Answers HCL, IBM, Infosys, LG Soft, Satyam,
how to swap 3 nos without using temporary variable
find A^B using Recursive function
main() { if ((1||0) && (0||1)) { printf("OK I am done."); } else { printf("OK I am gone."); } } a. OK I am done b. OK I am gone c. compile error d. none of the above
Link list in reverse order.
What is the difference between proc means and proc tabulate ? explain with a simple example when you have to use means or tabulate?