Examples do not compile with MSVC2022 and C++20 about compile-time-verbal-expressions HOT 2 OPEN

Seems like the CNTTP version is the problem.
When you deactivate it with a compiler definition ("CTLL_CNTTP_COMPILER_CHECK=0"), it can be compiled, but when using literals, ctre::regular_expression cannot be found + all the warning that CTLL_CNTTP_COMPILER_CHECK is already defined, which is not the cleanest solution.

from compile-time-verbal-expressions.

With the new constructor in CTRE, it is possible to do a nice conversion.

The tests will still fail. I could trace the problem to the "sanitize" function, which doubles the string size. The unused stringsize is '\0', which seems to be a problem with CTRE, i.e.

"(?:foo)?"
is different and matches differently than
"(?:foo)?\0\0\0\0"

from compile-time-verbal-expressions.