>>/<< 32 Bit wrong on 32 architechture
From: Gerhard Hintermayer (g.hintermayer_at_inode.at)
Date: 12/29/03
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Date: 29 Dec 2003 05:40:35 -0800
I recently discovered that shifting left/right with 32 Bits leads to
wrong results :
expr 5>>32 is 5, expr 5<<32 is 5, where I'd expect a result of 0 in
both cases.
Interesting, that 5<<31 and 5>>31 do return the correct values.
For implementing shifts in a bitmask broader than 32 bit (in separate
32-bit variables) this behavior is not very helpful, ? :
subexpressions have to be inserted, when the shift amount is 32.
I tested this with 8.4.5 (tclkit only) and 8.4.1 under linux (i368
architecture)
Should I file a bug report ?
Gerhard
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