C programming

What is the 16-bit compiler allowable range for integer constants?

• -3.4e38 to 3.4e38

• -32767 to 32768

• -32668 to 32667

• -32768 to 32767

Answer explanation

-32768 to 32767

main()

{printf("javatpoint");

main();}

• Wrong statement

• It will keep on printing javatpoint

• It will Print javatpoint once

• None of the these

Answer explanation

It will keep on printing javatpoint

What will this program print?

main()

{

int i = 2;

{

int i = 4, j = 5;

printf("%d %d", i, j);

}

printf("%d %d", i, j);

}

• 4525

• 2525

• 4545

• None of these

Answer explanation

4525

What is a lint?

• C compiler

• Interactive debugger

• Analyzing tool

• C interpreter

Answer explanation

Analyzing tool

What is the output of this statement "printf("%d", (a++))"?

• The value of (a + 1)

• The current value of a

• Error message

• Garbage

Answer explanation

The current value of a

Study the following program:

main()

{

int a = 1, b = 2, c = 3:

printf("%d", a + = (a + = 3, 5, a))

}

What will be the output of this program?

• 6

• 9

• 12

• 8

Answer explanation

Answer: (d) 8

Explanation: It is an effect of the comma operator.

a + = (a + = 3, 5, a)

It first evaluates to "a + = 3" i.e. a = a + 3 then evaluate 5 and then evaluate "a".

Therefore, we will get the output is 4.

Then,

a + = 4

It gives 8 as the output.

What does this declaration mean?

int x : 4;

• X is a four-digit integer.

• X cannot be greater than a four-digit integer.

• X is a four-bit integer.

• None of the these

Answer explanation

X is a four-bit integer.

In the C language, the constant is defined _______.

• Before main

• After main

• Anywhere, but starting on a new line.

• None of the these.

Answer explanation

Any where, but starting on a new line.

A pointer is a memory address. Suppose the pointer variable has p address 1000, and that p is declared to have type int*, and an int is 4 bytes long. What address is represented by expression p + 2?

• 102

• 104

• 106

• 108

Answer explanation

108

What is the result after execution of the following code if a is 10, b is 5, and c is 10?

If ((a > b) && (a <= c))

a = a + 1;

else

c = c+1;

• 10 10

• 11 10

• 10 11

• 11 11

Answer explanation

11 10