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What is ~0?

Started by Farabi, July 30, 2012, 07:04:35 PM

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Farabi

July 30, 2012, 07:04:35 PM
What is "~0" mean on C++ programming? Is it mean reverse all of the zero bit? ~0=0FFFFFFFFh?
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qWord

#1
July 30, 2012, 08:04:08 PM
yes
MREAL macros - when you need floating point arithmetic while assembling!

Ghandi

#2
July 31, 2012, 05:12:31 PM
The '~' operator is a bitwise NOT, otherwise known as "one's compliment":

http://www.cprogramming.com/tutorial/bitwise_operators.html

HR,
Ghandi
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