Efficient Bit addressing in Python.
Hendrik van Rooyen
mail at microcorp.co.za
Fri Oct 10 00:30:18 CEST 2008
Is there a canonical way to address the bits in a structure
like an array or string or struct?
Or alternatively, is there a good way to combine eight
ints that represent bits into one of the bytes in some
array or string or whatever?
It seems to me that there is a dilemma here :
if you can write:
bit3 = 1
Then you have to jump through hoops to get
bit0 through bit7 into some byte that you can send
to an i/o routine.
On the other hand, if you keep the bits "in" the
byte, then you can write:
byte = '\x7e'
but you have to jump through hoops to get at
the individual bits.
Is there a "best" way?
It would be nice to be able to write:
if io.byte2 == alarm_value:
io.byte2 & 8 "is" io.byte2.bit3
Is this possible?
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