Re: imenu rescan automatically

[Joel Reicher <joel.reicher@gmail.com>]

Christopher Dimech <dimech@gmx.com> writes:

> So I can forget any useful code that words. 

For code to work it 'only' requires that the series of state 
changes executed by the machine leads to the desired final state.

It cannot and should not be underestimated how obfuscated that can 
be, and it is orthogonal almost to the point of being irrelevant 
to the way humans understand code.

An example from the UNIX fortune file:

        n = ((n >>  1) & 0x55555555) | ((n <<  1) & 0xaaaaaaaa);
        n = ((n >>  2) & 0x33333333) | ((n <<  2) & 0xcccccccc);
        n = ((n >>  4) & 0x0f0f0f0f) | ((n <<  4) & 0xf0f0f0f0);
        n = ((n >>  8) & 0x00ff00ff) | ((n <<  8) & 0xff00ff00);
        n = ((n >> 16) & 0x0000ffff) | ((n << 16) & 0xffff0000);

                -- C code which reverses the bits in a word.

If it works, but you don't understand it, it doesn't work.

Regards,

        - Joel