this post was submitted on 09 Mar 2025
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Why can't I use the '|' bitwise operator in this statement? (lemm.ee)
submitted 1 week ago* (last edited 1 week ago) by milon@lemm.ee to c/python@programming.dev
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if coin == 25 | 10 | 5:

If I replace the '|' with 'or' the code runs just fine. I'm not sure why I can't use '|' in the same statement.

Doing the following doesn't work either:

if coin == 25 | coin == 10 | coin == 5:

I know bitwise operators can only be used with integers, but other then that is there another difference from logical operators?

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[โ€“] milon@lemm.ee 2 points 1 week ago (1 children)

Thank you. Not sure why in the link the arithmetic in green results in 7.

[โ€“] sugar_in_your_tea@sh.itjust.works 1 points 2 hours ago* (last edited 2 hours ago)

Not sure why in the link the arithmetic in green results in 7.

Here's the example from the link:

  1 0 0
| 0 1 1
--------
  1 1 1

111 is the binary representation of 7. This also has the equivalent result:

  1 0 0
| 1 1 1
--------
  1 1 1

All it's doing is going through each column of the binary number, and if at least one of them is a 1, the result is a 1. If they're both a 0, the result is a zero. Then you just convert from binary to decimal, so 111 -> 7.