Interpreter/JIT discrepancy

[ltrzesniewski]

I've been notified of an interpreter/JIT discrepancy in PCRE.NET, but it happens directly in PCRE2 10.48:

$ ./configure --enable-jit && make
[...]

$ echo 'ab' | ./pcre2grep -c --no-jit '(?<=a?(?=b))b'
1

$ echo 'ab' | ./pcre2grep -c '(?<=a?(?=b))b'
0

$ ./pcre2grep --version
pcre2grep version 10.48 2026-08-31

Thanks to @Kuinox for finding this.

PS: This also happens on the latest main branch (aac57f9)

[NWilson]

Thanks! I'm sure we can look into it.