[jokoon]

I hope this will become part of C++ one day.

Although if the C++ committee manages to add this without deprecating other things, I would be impressed.

[corysama]

There has been a proposal to add pattern matching to C++ for nearly a decade now https://www.stroustrup.com/OpenPatternMatching.pdf Shame it never got in. With language support for matching, sum types and product types it would be a completely different language.

[pclmulqdq]

The regex library in the STL was quite a lesson for the C++ maintainers. They will probably not allow anything similar any time soon.

[tialaramex]

Although the phrase "pattern matching" is involved these are completely different features.

Also, unlike for regular expressions what you actually want here is typically a language feature, even if a bunch of the lifting is done in your standard library. In particular you probably want a keyword (or in several C++ pattern matching proposals, more than one) and new behaviour not just a few functions and constants.

You could think of this as a bit like "switch" but on the other hand if your insight into switch is that it's basically a computed go-to wearing fancy dress then no, not that, the thing ordinary people use switch for.

[UncleOxidant]

Wouldn't it be very similar to Rust? (or OCaml - but without the automatic memory management)

[amazing42]

Actually this library (match(it)) is more similar to Racket. You can see there are lots of patterns borrowed from Racket pattern matching, say app pattern and ooo pattern.