[libcxx-commits] [libcxx] [regex] fix uncaught exception when string is like "\\_" (PR #129348)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> @frederick-vs-ja where could I find those tests？

I think we can add a new case to `libcxx/test/std/re/re.regex/re.regex.construct/ptr.pass.cpp`.

https://github.com/llvm/llvm-project/pull/129348