how to get the ordinal number in list
Tim Chase
python.list at tim.thechases.com
Mon Aug 11 08:30:04 EDT 2014
On 2014-08-11 07:55, Roy Smith wrote:
> > A C programmer asked to swap variables x and y, typically writes
> > something like
> >
> > t = x; x = y; y = t;
> >
> > Fine, since C cant do better.
>
> Sure C can do better.
>
> x = x ^ y
> y = y ^ x
> x = x ^ y
>
> Any self-respecting C hacker would write it this way :-)
Pish, such redundancy...everyone knows a C programmer would write
that as
x ^= y
y ^= x
x ^= y
:-)
-tkc
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