| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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_NUMERIC_SUPER_TYPE_HPP_ |
| #define QUICKSTEP_TYPES_NUMERIC_SUPER_TYPE_HPP_ |
| |
| #include <cstddef> |
| |
| #include "types/NullCoercibilityCheckMacro.hpp" |
| #include "types/Type.hpp" |
| #include "types/TypeID.hpp" |
| #include "types/TypedValue.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief Templatized superclass for Numeric types. Contains code common to all |
| * Numeric types. |
| **/ |
| template <typename CppType> |
| class NumericSuperType : public Type { |
| public: |
| typedef CppType cpptype; |
| |
| std::size_t estimateAverageByteLength() const override { |
| return sizeof(CppType); |
| } |
| |
| bool isCoercibleFrom(const Type &original_type) const override { |
| QUICKSTEP_NULL_COERCIBILITY_CHECK(); |
| return (original_type.getSuperTypeID() == kNumeric); |
| } |
| |
| TypedValue makeZeroValue() const override { |
| return TypedValue(static_cast<CppType>(0)); |
| } |
| |
| protected: |
| NumericSuperType(const TypeID type_id, const bool nullable) |
| : Type(Type::kNumeric, type_id, nullable, sizeof(CppType), sizeof(CppType)) { |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(NumericSuperType); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_NUMERIC_SUPER_TYPE_HPP_ |