rewriting strcasechr to compare multiple bytes at once #174
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vigoux
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Sep 18, 2022
This merges jhawthorn/fzy#174 into the the embedded fzy UI.
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Doing some basic pointer/bit magic to compare 4 bytes for a requested character.
The code compares 4 bytes at a time, since this is faster than comparing 8 bytes
when the target character is in the first 32 bytes (on average).
But the most significant speedup is probably a call to strchr when the requested
character is a utf-8 byte (may be extended to all non-alphabetical characters).