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-rw-r--r--libs/misc/include/misc/tensor/IndexIterator.h107
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diff --git a/libs/misc/include/misc/tensor/IndexIterator.h b/libs/misc/include/misc/tensor/IndexIterator.h
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--- a/libs/misc/include/misc/tensor/IndexIterator.h
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-/*
- * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
- *
- * 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.
- */
-
-/**
- * @file IndexIterator.h
- * @ingroup COM_AI_RUNTIME
- * @brief This file contains nnfw::misc::tensor::IndexIterator class and
- * helper function and operator
- */
-#ifndef __NNFW_MISC_TENSOR_INDEX_ITERATOR_H__
-#define __NNFW_MISC_TENSOR_INDEX_ITERATOR_H__
-
-#include "misc/tensor/Shape.h"
-#include "misc/tensor/Index.h"
-#include "misc/tensor/IndexEnumerator.h"
-
-namespace nnfw
-{
-namespace misc
-{
-namespace tensor
-{
-
-/**
- * @brief Class to iterate indexes available for given shape
- */
-class IndexIterator
-{
-public:
- /**
- * @brief Construct a new @c IndexIterator object
- * @param[in] shape Shape of tensor of which index will be iterated
- */
- IndexIterator(const Shape &shape) : _shape(shape)
- {
- // DO NOTHING
- }
-
-public:
- /**
- * @brief Construct a new IndexIterator object using reference
- * @param[in] IndexIterator @c IndexIterator object to move
- */
- IndexIterator(IndexIterator &&) = default;
-
- /**
- * @brief Prevent copy constructor
- */
- IndexIterator(const IndexIterator &) = delete;
-
-public:
- /**
- * @brief Iterate all available indexes and run a function for each index
- * @param[in] fn Function that requires an index as a parameter.
- * @return @c IndexIterator object
- */
- template <typename Callable> IndexIterator &iter(Callable fn)
- {
- for (IndexEnumerator e{_shape}; e.valid(); e.advance())
- {
- fn(e.curr());
- }
-
- return (*this);
- }
-
-private:
- const Shape &_shape;
-};
-
-/**
- * @brief Get an @c IndexItator object
- * @param[in] shape Shape of tensor of which index will be iterated
- * @return @c IndexIterator object
- */
-inline IndexIterator iterate(const Shape &shape) { return IndexIterator{shape}; }
-
-/**
- * @brief Iterate all indexes and apply a function
- * @param[in] it @c IndexIterator object that is constructed with a tensor shape
- * @param[in] cb A function that will receive a specific index.
- * Inside the function, the index is used to manipulate tensor element.
- * @return @c IndexIterator object
- */
-template <typename Callable> IndexIterator &operator<<(IndexIterator &&it, Callable cb)
-{
- return it.iter(cb);
-}
-
-} // namespace tensor
-} // namespace misc
-} // namespace nnfw
-
-#endif // __NNFW_MISC_TENSOR_INDEX_ITERATOR_H__