On 09/10/13 14:59, David Christensen wrote:
Assuming canonical boolean values, post-invert semantics (save the new
value into another variable) ...
Pre-invert semantics (save the old value into another variable) ...
Oops -- it looks like I got my pre- and post- backwards...
And, dropping the save old idiom:
($var = $old = $var) ^= 1
into the middle of expression would yield the new value, which would be
wrong...
David
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