mongodb timeline 还在研究

暂时写这么点

MDB/imm_mongodb/bsoncxx/builder/basic/helpers.hpp

@@ -0,0 +1,33 @@
+// Copyright 2015 MongoDB Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <bsoncxx/builder/concatenate.hpp>
+
+#include <bsoncxx/config/prelude.hpp>
+
+namespace bsoncxx {
+BSONCXX_INLINE_NAMESPACE_BEGIN
+namespace builder {
+namespace basic {
+
+using bsoncxx::builder::concatenate;
+
+}  // namespace basic
+}  // namespace builder
+BSONCXX_INLINE_NAMESPACE_END
+}  // namespace bsoncxx
+
+#include <bsoncxx/config/postlude.hpp>