Can someone explain the meaning of this line of code?
i = * ( long * ) &y;
The code is from wikipedia, Fast inverse square root. Is there a way to do the same with python?
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2`&y` is casted to a `long*` pointer and dereferenced. The result is stored in `i`. I doub't to do such is possible in python. – πάντα ῥεῖ Mar 31 '16 at 14:00
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You could possibly achieve the same using the [`struct` module](https://docs.python.org/3.5/library/struct.html): `i = struct.unpack('l', struct.pack('f', y))`, but the actual line relies on how the values are represented in memory - which isn't something you can easily get at with python. – RoadieRich Mar 31 '16 at 14:33
