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

[Mark de Wever via libcxx-commits]

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@@ -31,6 +31,7 @@ int main(int, char**)
     test("\\(a[bc]\\)", 0);
     test("\\(a\\([bc]\\)\\)", 0);
     test("(a([bc]))", 2);
+    test("\\$\\_se", 0);
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mordante wrote:

I really like to see a test where it shows the regex works correctly.

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