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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.
*/
#ifndef __COCO_ADT_SPAN_H__
#define __COCO_ADT_SPAN_H__
#include <cstdint>
#include <cassert>
namespace coco
{
/**
* @brief A Span is a non-owing reference to a memory chunk
*
* @note A Span DOES NOT OWN a memory chunk.
*/
template <typename T> class Span
{
public:
Span(T *data, uint32_t size) : _data{data}, _size{size}
{
// DO NOTHING
}
public:
T *data(void) { return _data; }
const T *data(void) const { return _data; }
public:
uint32_t size(void) const { return _size; }
public:
T &operator[](uint32_t n)
{
assert(n < _size);
return *(_data + n);
}
public:
const T &operator[](uint32_t n) const
{
assert(n < _size);
return *(_data + n);
}
private:
T *_data;
uint32_t _size;
};
} // namespace coco
#endif // __COCO_ADT_SPAN_H__
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