1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file |
3 | // distributed with this work for additional information |
4 | // regarding copyright ownership. The ASF licenses this file |
5 | // to you under the Apache License, Version 2.0 (the |
6 | // "License"); you may not use this file except in compliance |
7 | // with the License. You may obtain a copy of the License at |
8 | // |
9 | // http://www.apache.org/licenses/LICENSE-2.0 |
10 | // |
11 | // Unless required by applicable law or agreed to in writing, |
12 | // software distributed under the License is distributed on an |
13 | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
14 | // KIND, either express or implied. See the License for the |
15 | // specific language governing permissions and limitations |
16 | // under the License. |
17 | |
18 | #ifndef ARROW_CAST_H |
19 | #define ARROW_CAST_H |
20 | |
21 | #include <type_traits> |
22 | |
23 | namespace arrow { |
24 | namespace internal { |
25 | |
26 | template <typename OutputType, typename InputType> |
27 | inline OutputType checked_cast(InputType&& value) { |
28 | static_assert(std::is_class<typename std::remove_pointer< |
29 | typename std::remove_reference<InputType>::type>::type>::value, |
30 | "checked_cast input type must be a class" ); |
31 | static_assert(std::is_class<typename std::remove_pointer< |
32 | typename std::remove_reference<OutputType>::type>::type>::value, |
33 | "checked_cast output type must be a class" ); |
34 | #ifdef NDEBUG |
35 | return static_cast<OutputType>(value); |
36 | #else |
37 | return dynamic_cast<OutputType>(value); |
38 | #endif |
39 | } |
40 | |
41 | } // namespace internal |
42 | } // namespace arrow |
43 | |
44 | #endif // ARROW_CAST_H |
45 | |