main() { printf("%d, %d", sizeof('c'), sizeof(100)); }

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INTERVIEW QUESTIONS LANGUAGES C DETAILS

Question :
main()
{
printf("%d, %d", sizeof('c'), sizeof(100));
}

Category C Interview Questions

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Added on 7/18/2006

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Answers:

The answer is 2,2 coz sizeof return the memory occupied and "c" uses 1 byte to store character 'c' and the other byte to store NULL to indicate the end of string. 100 being stored as an interger would take 2 bytes

I am not sure how far the explanation mentioned above is correct???

I think sizeof('c') is different from sizeof("c").The explanation given was for sizeof("c").

As per the question is concerned,sizeof('c')
is nothing but sizeof(ascii value of c) which is nothing but an interger(99) so sizeof('c')== sizeof(99) which results in 2 for 16 bit compilers and 4 for 32 bit compilers.

Hence the answer is 2,2

Posted by: Syed Baseer Ahmed

  Contact Syed Baseer Ahmed

It completely depends upon the compiler. Some compilers allocate 1 byte of memo for char variable. While some other allocate 2 bytes. Similarly, memory allocation for integer varies from compiler to compiler.

Posted by: Chirantan Rajhans

  Contact Chirantan Rajhans

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