C Misc

Question 1

In the C language (GATE CS 2002)

At most one activation record exists between the current activation record and the activation record for the main
The number of activation records between the current activation record and the activation record for the main depends on the actual function calling sequence.
The visibility of global variables depends on the actual function calling sequence.
Recursion requires the activation record for the recursive function to be saved on a different stack before the recursive function can be called.

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Question 2

The C language is. (GATE CS 2002)

A context free language
A context sensitive language
A regular language
Parsable fully only by a Turing machine

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Question 3

The number of tokens in the following C statement is

printf("HELLO WORLD");

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Question 4

Assume that the size of an integer is 4 bytes. Predict the output?

#include <stdio.h>
int fun()
{
    puts(\" Hello \");
    return 10;
}

int main()
{
    printf(\"%d\", sizeof(fun()));
    return 0;
}

4
Hello 4
4 Hello
Compiler Error

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Question 5

Which of the following best describes C language

C is a low level language
C is a high level language with features that support low level programming
C is a high level language
C is a very high level language

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Question 6

#include <stdio.h>
int main()
{
    int a[][3] = {1, 2, 3, 4, 5, 6};
    int (*ptr)[3] = a;
    printf(\"%d %d \", (*ptr)[1], (*ptr)[2]);
    ++ptr;
    printf(\"%d %d\\n\", (*ptr)[1], (*ptr)[2]);
    return 0;
}

2 3 5 6
2 3 4 5
4 5 0 0
none of the above

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Question 7

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

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Question 8

Output of Below C Code? Assume that int takes 4 bytes.

#include<stdio.h>
int x = 5;
int main()
{
	int arr[x];
	static int x = 0;
	x = sizeof(arr);
	printf(\"%d\", x<<2);
	return 0;
}

Thanks to Gokul Kumar for contributing this question.

Compiler error in line "static int x = 0"
7
80
20

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Question 9

#include <stdio.h>
#include <string.h>
int main()
{
    char a[] = {\'G\',\'E\',\'E\',\'K\',\'S\',\'Q\',\'U\',\'I\',\'Z\'};
    char b[] = \"QUIZ\";
    char c[] = \"GEEKS\";
    char d[] = \"1234\";
    int l = strlen(a);
    int o = printf(\"%d\", sizeof((sizeof(l)+(c[5]+d[0]+a[1]+b[2]))) );
    printf(\"%c\", a[o]);
    return 0;
}

Thanks to Gokul for contributing this question.

4E
8E
1234Q
Compiler Dependent

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Question 10

Consider line number 3 of the following C- program.

int main ( ) {                   /* Line 1 */
  int I, N;                      /* Line 2 */
  fro (I = 0, I < N, I++);       /* Line 3 */
}

Identify the compiler\'s response about this line while creating the object-module

No compilation error
Only a lexical error
Only syntactic errors
Both lexical and syntactic errors

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1 2 3

There are 25 questions to complete.

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