[libcxx-commits] [libcxx] WIP [libc++][istream] P3223R2: Making `std::istream::ignore` less surprising (PR #147007)

[A. Jiang via libcxx-commits]

================
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// Requires 396145d in the built library.
+// XFAIL: using-built-library-before-llvm-9
----------------
frederick-vs-ja wrote:

```suggestion
// XFAIL: using-built-library-before-llvm-9
// XFAIL: FROZEN-CXX03-HEADERS-FIXME
```

https://github.com/llvm/llvm-project/pull/147007