Add concatenate

src/CMakeLists.txt

@@ -18,6 +18,7 @@ set (SRC
     tree.cpp
     util.cpp
     log.cpp
+    ops/concatenate.cpp
     ops/function.cpp
     ops/literal.cpp
     ops/op.cpp

src/ngraph/literal.hpp

@@ -71,4 +71,4 @@ namespace ngraph
     using UInt8ScalarOp  = ScalarLiteralOp<element::UInt8>;
     using UInt32ScalarOp = ScalarLiteralOp<element::UInt32>;
     using UInt64ScalarOp = ScalarLiteralOp<element::UInt64>;
-}
\ No newline at end of file
+}

src/ngraph/ngraph.hpp

@@ -24,6 +24,7 @@
 #include "ngraph/literal.hpp"
 #include "ngraph/node.hpp"
 #include "ngraph/op.hpp"
+#include "ngraph/ops/concatenate.hpp"
 #include "ngraph/parameter.hpp"
 #include "ngraph/shape.hpp"
 #include "ngraph/type.hpp"

src/ngraph/op.hpp

@@ -32,7 +32,7 @@ namespace ngraph
 
         //Node::ptr candidate();
         Node::ptr ceiling(const Node::ptr& arg0, const Node::ptr& arg1);
-        //Node::ptr concatenate();
+
         //Node::ptr constant();
         //Node::ptr convert();
         //Node::ptr convolution();

src/ngraph/ops/concatenate.hpp

+// ----------------------------------------------------------------------------
+// Copyright 2017 Nervana Systems 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
+// ----------------------------------------------------------------------------
+
+#pragma once
+
+namespace ngraph
+{
+    namespace op
+    {
+        Node::ptr concatenate(const std::vector<Node::ptr>& args);
+    }
+
+    class ConcatenateOp : public BuiltinOp
+    {
+    public:
+        ConcatenateOp(const std::vector<Node::ptr>& args)
+            : BuiltinOp(args)
+        {
+        }
+
+        virtual std::string op_name() const override { return "concatenate"; }
+        virtual void        propagate_types() override;
+    };
+}

src/ops/concatenate.cpp

+// ----------------------------------------------------------------------------
+// Copyright 2017 Nervana Systems 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
+// ----------------------------------------------------------------------------
+
+#include <memory>
+
+#include "ngraph/ngraph.hpp"
+
+using namespace std;
+using namespace ngraph;
+
+void ConcatenateOp::propagate_types()
+{
+    throw ngraph_error("NIY");
+}
+
+Node::ptr op::concatenate(const std::vector<Node::ptr>& args)
+{
+    return make_shared<ConcatenateOp>(args);
+}