| /** |
| * Copyright 2011-2015 Quickstep Technologies LLC. |
| * Copyright 2015 Pivotal Software, 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. |
| **/ |
| |
| #ifndef QUICKSTEP_TYPES_CONTAINERS_COLUMN_VECTOR_UTIL_HPP_ |
| #define QUICKSTEP_TYPES_CONTAINERS_COLUMN_VECTOR_UTIL_HPP_ |
| |
| #include "types/containers/ColumnVector.hpp" |
| |
| namespace quickstep { |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief Invoke a generic functor (or lambda) on a ColumnVector that is |
| * downcast to its actual concrete type. |
| * |
| * @param column_vector A ColumnVector that will be downcast to its concrete |
| * type so that inline methods can be used. |
| * @param functor A generic functor or lambda that has a templated call |
| * operator taking a single argument. The call operator will be invoked |
| * with the downcast column_vector as its argument. |
| * @return The return value of functor's call operator applied to the downcast |
| * column_vector. |
| **/ |
| template <typename FunctorT> |
| auto InvokeOnColumnVector(const ColumnVector &column_vector, |
| const FunctorT &functor) { |
| if (column_vector.isNative()) { |
| return functor(static_cast<const NativeColumnVector&>(column_vector)); |
| } else { |
| return functor(static_cast<const IndirectColumnVector&>(column_vector)); |
| } |
| } |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_CONTAINERS_COLUMN_VECTOR_UTIL_HPP_ |