A neat explanation:
“That XOR Trick” [2020], Florian Hartmann (florian.github.io//xor-trick/).
On HN: news.ycombinator.com/item?id=2582... & news.ycombinator.com/item?id=4442...
#XOR #Bits #BooleanLogic #Tricks #BitTwiddling #Programming
“That XOR Trick” [2020], Florian Hartmann (florian.github.io//xor-trick/).
On HN: news.ycombinator.com/item?id=2582... & news.ycombinator.com/item?id=4442...
#XOR #Bits #BooleanLogic #Tricks #BitTwiddling #Programming
That XOR Trick
There are a whole bunch of popular interview questions that can be solved in one of two ways: Either using common data structures and algorithms in a sensible manner, or by using some properties of...
florian.github.io
July 19, 2025 at 4:17 AM
A neat explanation:
“That XOR Trick” [2020], Florian Hartmann (florian.github.io//xor-trick/).
On HN: news.ycombinator.com/item?id=2582... & news.ycombinator.com/item?id=4442...
#XOR #Bits #BooleanLogic #Tricks #BitTwiddling #Programming
“That XOR Trick” [2020], Florian Hartmann (florian.github.io//xor-trick/).
On HN: news.ycombinator.com/item?id=2582... & news.ycombinator.com/item?id=4442...
#XOR #Bits #BooleanLogic #Tricks #BitTwiddling #Programming
The mother lode of #BitTwiddling tips (apart from the #book “Hacker’s Delight”, by Henry S. Warren Jr, and “HAKMEM” by the MIT hackers):
“Bit Twiddling Hacks”, Sean Eron Anderson (graphics.stanford.edu/~seander/bit...).
On HN: hn.algolia.com?dateRange=al...
#Math #Optimization #Compilers
“Bit Twiddling Hacks”, Sean Eron Anderson (graphics.stanford.edu/~seander/bit...).
On HN: hn.algolia.com?dateRange=al...
#Math #Optimization #Compilers
Bit Twiddling Hacks
graphics.stanford.edu
May 17, 2025 at 4:38 AM
The mother lode of #BitTwiddling tips (apart from the #book “Hacker’s Delight”, by Henry S. Warren Jr, and “HAKMEM” by the MIT hackers):
“Bit Twiddling Hacks”, Sean Eron Anderson (graphics.stanford.edu/~seander/bit...).
On HN: hn.algolia.com?dateRange=al...
#Math #Optimization #Compilers
“Bit Twiddling Hacks”, Sean Eron Anderson (graphics.stanford.edu/~seander/bit...).
On HN: hn.algolia.com?dateRange=al...
#Math #Optimization #Compilers
This 👇🏽 is good 👌🏽:
“A Leap Year Check In Three Instructions”, Falk Hüffner (hueffner.de/falk/blog/a-...).
Via HN: news.ycombinator.com/item?id=4399...
On Lobsters: lobste.rs/s/ybjgex/lea...
#Optimization #Assembly #Compilers #GCC #Math #LeapYear #GregorianCalendar #BitTwiddling #Speed
“A Leap Year Check In Three Instructions”, Falk Hüffner (hueffner.de/falk/blog/a-...).
Via HN: news.ycombinator.com/item?id=4399...
On Lobsters: lobste.rs/s/ybjgex/lea...
#Optimization #Assembly #Compilers #GCC #Math #LeapYear #GregorianCalendar #BitTwiddling #Speed
A leap year check in three instructions
How to test for leap years (until year 102499) in the proleptic Gregorian calendar with just three 32-bit instructions, with detailed explanation of the bit-level tricks.
hueffner.de
May 17, 2025 at 4:16 AM
This 👇🏽 is good 👌🏽:
“A Leap Year Check In Three Instructions”, Falk Hüffner (hueffner.de/falk/blog/a-...).
Via HN: news.ycombinator.com/item?id=4399...
On Lobsters: lobste.rs/s/ybjgex/lea...
#Optimization #Assembly #Compilers #GCC #Math #LeapYear #GregorianCalendar #BitTwiddling #Speed
“A Leap Year Check In Three Instructions”, Falk Hüffner (hueffner.de/falk/blog/a-...).
Via HN: news.ycombinator.com/item?id=4399...
On Lobsters: lobste.rs/s/ybjgex/lea...
#Optimization #Assembly #Compilers #GCC #Math #LeapYear #GregorianCalendar #BitTwiddling #Speed
I would like to participate in discussions about #MusicStudios #SoundEngineering #SensoryPercussion #SparkPresets #ProgressiveMetal #MusicComposition #InformationSystems #BitTwiddling #Cryptography #Cryptanalysis #Longswords #CreativeWriting #CrypticWriting #CrypticArt #Medieval #History
November 23, 2024 at 1:26 PM
I would like to participate in discussions about #MusicStudios #SoundEngineering #SensoryPercussion #SparkPresets #ProgressiveMetal #MusicComposition #InformationSystems #BitTwiddling #Cryptography #Cryptanalysis #Longswords #CreativeWriting #CrypticWriting #CrypticArt #Medieval #History