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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 _MIR_SHAPE_H_
#define _MIR_SHAPE_H_
#include <initializer_list>
#include <vector>
#include <cstdint>
#include "adtidas/SmallVector.h"
#include "mir/Common.h"
namespace mir
{
class Shape
{
public:
static constexpr int32_t autoDim = -1;
Shape() = default;
explicit Shape(int32_t rank) : _dims(rank) {}
Shape(std::initializer_list<int32_t> &&dims) : _dims(std::move(dims)) {}
explicit Shape(const std::vector<int32_t> &dims) : _dims(std::begin(dims), std::end(dims)) {}
int32_t rank() const { return static_cast<int32_t>(_dims.size()); }
void resize(int32_t size);
int32_t &dim(int32_t axis) noexcept
{
auto dim = wrap_index(axis, _dims.size());
return _dims[dim];
};
int32_t dim(int32_t axis) const noexcept
{
auto dim = wrap_index(axis, _dims.size());
return _dims[dim];
}
int32_t numElements() const;
bool operator==(const Shape &rhs) const { return _dims == rhs._dims; }
bool operator!=(const Shape &rhs) const { return !(*this == rhs); }
private:
adt::small_vector<int32_t, MAX_DIMENSION_COUNT> _dims;
};
Shape broadcastShapes(const Shape &lhs_shape, const Shape &rhs_shape);
std::string toString(const Shape &shape);
} // namespace mir
#endif //_MIR_SHAPE_H_
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