What will be the output of the following code fragment void...

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Operators and Expressions

What will be the output of the following code fragment?

void main()
{
   printf("%x",-1<<4);
}

A) fff0 B) fff1 C) fff2 D) fff3 E) fff4

Answer & Solution

Correct Answer: Option A

-1 will be represented in binary form as:
1111 1111 1111 1111

Now -1<<4 means 1 is Shifted towards left by 4 positions, hence it becomes:
1111 1111 1111 0000 in hexadecimal form - fff0.

Question posted by Examveda

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2 Comments

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Gayathri 5 years ago

Binary representation of 1 for 16 bits=0000 0000 0000 0001 then take 1's complement so, 1111 1111 1111 1110 then take 2's complement so 1111 1111 1111 1111 then take left shift

Narendra B 6 years ago

-1 binary?

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What will be the output of the following code fragment void...

What will be the output of the following code fragment? void main() { printf("%x",-1<<4); }

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