Expedite support for C++20
I used PC-Lint many years ago, and was quite satisfied. Just to see what the current state of the program was, I pasted a bit of code I was working on into your online evaluator. Unfortunately, it couldn't handle a number of bits of C++20-specific code. (It also refused to recognize the VS flag /std:c++latest, which is legitimate.)
The recently released PC-lint Plus 2.0 supports most of C++20 allowing it to be used with current versions of most compilers, including Visual Studio 2022. The -std=c++20 option may be used to enable support for C++20. The Online Demo will be updated with the new version soon, in the mean time an evaluation version of 2.0 is available for download here.