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Simple C program-please explain output.

hitesh inception
Greenhorn

Joined: Sep 13, 2012
Posts: 1


output: 20

I could not understand why it prints '20' ? please explain it !
Anand Hariharan
Rancher

Joined: Aug 22, 2006
Posts: 257

Do not try to understand code that is meaningless and/or has undefined behaviour.

Look up http://www.c-faq.com -- Section 3. All of it would make good reading, but 3.8, 3.2 and 3.11 would probably be the most relevant for you.

There is a (very) brief explanation by Stroustrup at http://www.stroustrup.com/bs_faq2.html#evaluation-order

"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." -- Antoine de Saint-Exupery
 
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subject: Simple C program-please explain output.