[libcxx-commits] [libcxx] [libc++] Implements filebuf unbuffered. (PR #76629)

[Louis Dionne via libcxx-commits]

================
@@ -0,0 +1,118 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+// <fstream>
+
+// basic_streambuf<charT, traits>* setbuf(char_type* s, streamsize n) override;
+
+#include <fstream>
+#include <cassert>
----------------
ldionne wrote:

Nit: `<cstddef>`

https://github.com/llvm/llvm-project/pull/76629