46 lines
1.4 KiB
46 lines
1.4 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 <vector>
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#include "paddle/fluid/platform/enforce.h"
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namespace paddle {
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namespace operators {
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namespace detail {
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/**
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* Get Reference From Pointer with check. The error message is printf format,
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* and passed by `args`
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*/
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template <typename T, typename... ARGS>
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inline T& Ref(T* ptr, ARGS&&... args) {
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PADDLE_ENFORCE(ptr != nullptr, ::paddle::string::Sprintf(args...));
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return *ptr;
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}
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template <typename T, typename... ARGS>
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inline std::vector<std::reference_wrapper<T>> VectorRef(
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const std::vector<T*>& vec, ARGS&&... args) {
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std::vector<std::reference_wrapper<T>> result;
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result.reserve(vec.size());
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for (auto* ptr : vec) {
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result.emplace_back(Ref(ptr, args...));
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}
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return result;
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}
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} // namespace detail
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} // namespace operators
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} // namespace paddle
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