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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 __NEURUN_GRAPH_INDEX_H__
#define __NEURUN_GRAPH_INDEX_H__
#include <functional>
#include <limits>
#include <stdint.h>
namespace neurun
{
namespace graph
{
template <typename T, typename DummyTag> class Index
{
private:
static const T UNDEFINED = std::numeric_limits<T>::max();
public:
explicit Index(void) : _index{UNDEFINED} {}
explicit Index(T o) : _index{o} {}
explicit Index(int32_t o) : _index{static_cast<T>(o)} {} // For legacy code compatibility
Index(const Index &o) : _index{o._index} {}
Index &operator=(T o)
{
_index = o;
return *this;
}
Index &operator=(const T &o)
{
_index = o._index;
return *this;
}
bool operator==(T o) const { return _index == o; }
bool operator==(const Index &o) const { return _index == o._index; }
bool operator!=(T o) const { return !(*this == o); }
bool operator!=(const Index &o) const { return !(*this == o); }
T value() const { return _index; }
int32_t asInt() const { return static_cast<int32_t>(_index); } // For legacy code compatibility
private:
T _index;
};
} // namespace graph
} // namespace neurun
namespace std
{
template <typename T, typename Tag> struct hash<::neurun::graph::Index<T, Tag>>
{
size_t operator()(const ::neurun::graph::Index<T, Tag> &index) const noexcept
{
return hash<T>()(index.value());
}
};
} // namespace std
#endif // __NEURUN_GRAPH_INDEX_H__
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