f4334277
 Hu Chunming
提交3rdparty
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_DNN_SRC_CUDA_ARRAY_HPP
#define OPENCV_DNN_SRC_CUDA_ARRAY_HPP
#include <cuda_runtime.h>
#include "types.hpp"
#include <cstddef>
#include <type_traits>
#include <iterator>
namespace cv { namespace dnn { namespace cuda4dnn { namespace csl { namespace device {
template <class T, std::size_t N>
struct array {
using value_type = T;
using size_type = device::size_type;
using difference_type = std::ptrdiff_t;
using reference = typename std::add_lvalue_reference<value_type>::type;
using const_reference = typename std::add_lvalue_reference<typename std::add_const<value_type>::type>::type;
using pointer = typename std::add_pointer<value_type>::type;
using const_pointer = typename std::add_pointer<typename std::add_const<value_type>::type>::type;
using iterator = pointer;
using const_iterator = const_pointer;
using reverse_iterator = std::reverse_iterator<iterator>;
using const_reverse_iterator = std::reverse_iterator<const_iterator>;
__host__ __device__ bool empty() const noexcept { return N == 0; }
__host__ __device__ size_type size() const noexcept { return N; }
__host__ __device__ iterator begin() noexcept { return ptr; }
__host__ __device__ iterator end() noexcept { return ptr + N; }
__host__ __device__ const_iterator begin() const noexcept { return ptr; }
__host__ __device__ const_iterator end() const noexcept { return ptr + N; }
__host__ __device__ const_iterator cbegin() const noexcept { return ptr; }
__host__ __device__ const_iterator cend() const noexcept { return ptr + N; }
__host__ __device__ reverse_iterator rbegin() noexcept { return ptr + N; }
__host__ __device__ reverse_iterator rend() noexcept { return ptr; }
__host__ __device__ const_reverse_iterator rbegin() const noexcept { return ptr + N; }
__host__ __device__ const_reverse_iterator rend() const noexcept { return ptr; }
__host__ __device__ const_reverse_iterator crbegin() const noexcept { return ptr + N; }
__host__ __device__ const_reverse_iterator crend() const noexcept { return ptr; }
template <class InputItr>
__host__ void assign(InputItr first, InputItr last) {
std::copy(first, last, std::begin(ptr));
}
__host__ __device__ reference operator[](int idx) { return ptr[idx]; }
__host__ __device__ const_reference operator[](int idx) const { return ptr[idx]; }
__host__ __device__ reference front() { return ptr[0]; }
__host__ __device__ const_reference front() const { return ptr[0]; }
__host__ __device__ reference back() { return ptr[N - 1]; }
__host__ __device__ const_reference back() const { return ptr[N - 1]; }
__host__ __device__ pointer data() noexcept { return ptr; }
__host__ __device__ const_pointer data() const noexcept { return ptr; }
T ptr[N];
};
}}}}} /* namespace cv::dnn::cuda4dnn::csl::device */
#endif /* OPENCV_DNN_SRC_CUDA_ARRAY_HPP */
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