is_file is in file_base.hpp (API Change):

* The metafunction `is_file` is part of file_base.hpp

Actions Required

* Include file_base.hpp as needed

test/beast/core/file_base.cpp

@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file_base.hpp>