1 files changed, 31 insertions, 0 deletions
diff --git a/lib/libcxx/include/__functional/binary_function.h b/lib/libcxx/include/__functional/binary_function.h
new file mode 100644
index 0000000000..8ca7b06662
--- /dev/null
+++ b/lib/libcxx/include/__functional/binary_function.h
@@ -0,0 +1,31 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H
+#define _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Arg1, class _Arg2, class _Result>
+struct _LIBCPP_TEMPLATE_VIS binary_function
+{
+    typedef _Arg1   first_argument_type;
+    typedef _Arg2   second_argument_type;
+    typedef _Result result_type;
+};
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H