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41 lines
1.2 KiB
41 lines
1.2 KiB
7 years ago
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// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <type_traits>
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#include <vector>
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namespace paddle {
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namespace framework {
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namespace details {
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template <typename ResultType, typename ElemType>
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std::vector<ResultType*> DynamicCast(const std::vector<ElemType*>& container) {
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static_assert(std::is_base_of<ElemType, ResultType>::value,
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"ElementType must be a base class of ResultType");
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std::vector<ResultType*> res;
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for (auto* ptr : container) {
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auto* derived = dynamic_cast<ResultType*>(ptr);
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if (derived) {
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res.emplace_back(derived);
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}
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}
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return res;
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}
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} // namespace details
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} // namespace framework
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} // namespace paddle
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