GATE CSE 2005 | Pointer and Structure in C Question 20 | Programming Languages

GATE CSE 2005

MCQ (Single Correct Answer)

-0.3

What does the following C statement declare?

int (*f)(int *);

A function that takes an integer pointer as argument and returns an integer

A function that takes an integer as argument and returns an integer pointer

A pointer to a function that takes an integer pointer as argument and returns an integer

A function that takes an integer pointer as argument and returns a function pointer

GATE CSE 2004

MCQ (Single Correct Answer)

-0.3

Consider the following C function:

void swap (int a, int b)
{
   int temp;
   temp = a;
   a = b;
   b = temp;
}

In order to exchange the values of two variables x and y.

call swap (x, y)

call swap (&x, &y)

swap (x, y) cannot be used as it does return any value

swap (x, y) cannot be used as the parameters are passed by value

GATE CSE 2003

MCQ (Single Correct Answer)

-0.3

Assume the following C variable declaration

int * A[10], B[10][10];

Of the following expressions

I. A[2]
II. A[2] [3]
III. B[1]
IV. B[2] [3]

Which will not give compile-time errors if used as left hand sides of assignment statements in a C program?

I, II, and IV only

II, III, and IV only

II and IV only

IV only

GATE CSE 2000

MCQ (Single Correct Answer)

-0.3

The most appropriate matching for the following pairs

X: m=malloc(5); m= NULL;
Y: free(n); n->value = 5;
Z: char *p; *p='a';

1: using dangling
2: using uninitialized pointers
3. lost memory
is:

X – 1 Y – 3 Z – 2

X – 2 Y – 1 Z – 3

X – 3 Y – 2 Z – 1

X – 3 Y – 1 Z – 2

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