[libcxx-commits] [libcxx] [libc++][hardening] Rework how the assertion handler can be overridden. (PR #77883)

[Konstantin Varlamov via libcxx-commits]

================
@@ -0,0 +1,23 @@
+// -*- C++ -*-
----------------
var-const wrote:

Do we want to prefix this filename with `__`?

https://github.com/llvm/llvm-project/pull/77883