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Negating compound boolean expressions (De Morgan's Laws)
(pawelgrzybek.com)
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this post was submitted on 12 Nov 2025
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Programming
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The funny thing is that not C or Rust as languages "close to the hardware" have more specific bitwise operations - but Common Lisp has:
https://www.lispworks.com/documentation/HyperSpec/Body/f_logand.htm
https://www.lispworks.com/documentation/HyperSpec/Body/f_logcou.htm
https://www.lispworks.com/documentation/HyperSpec/Body/f_boole.htm#boole
(Though Rust has at least
popcnt()andcount_ones(), which are immensely useful e.g. when processing small sets.)