skoroboga...@gmail.com wrote:
I can't understand a little thing in bitwise operations.
In PHP and Javascript
4653896912>>13 = -212992
In Python and Ruby
4653896912>>13 = 568102
In Python and Ruby - it's ok. I understand.
But i need to get in Python same value as in PHP and Javascript.
How can i do this?
So that someone who knows next-to-nothing about those 2 languages can
help you, what is x >n defined to do in PHP and Javascript?
If you can answer that question, what part of the Python implementation
of the PHP/Javascript definition are you having trouble with?
If you can't answer it ... is the problem caused by the fact that
4653896912 is, at 9 hex digits, a bit large for a 32-bit integer, those
2 languages don't have longer integers [my guess],
*and*, to quote something I found about PHP while googling,
http://theopensourcery.com/phplogic.htm
"In effect the bitwise operations [words "can be" omitted, I presume]
safely applied to integer variables - their effect on booleans,
float/double or string variables can be predicted but are not really
useful" ???
Cheers,
John