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Implement Eigen::array<...>::reverse_iterator if std::reverse_iterator exists.

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This commit is contained in:
Rasmus Munk Larsen 2021-11-20 00:22:46 +00:00
parent 5137a5157a
commit 5e89573e2a
2 changed files with 29 additions and 10 deletions
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3
unsupported/Eigen/CXX11/Tensor
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@ -38,9 +38,10 @@
#include <cmath> #include <cmath>
#include <cstddef> #include <cstddef>
#include <cstring> #include <cstring>
#include <iterator>
#include <numeric>
#include <random> #include <random>
#include <thread> #include <thread>
#include <numeric>
#if defined(EIGEN_USE_THREADS) || defined(EIGEN_USE_SYCL) #if defined(EIGEN_USE_THREADS) || defined(EIGEN_USE_SYCL)
#include "ThreadPool" #include "ThreadPool"

36
unsupported/Eigen/CXX11/src/util/EmulateArray.h
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@ -17,11 +17,38 @@
namespace Eigen { namespace Eigen {
template <typename T, size_t n> class array { template <typename T, size_t n> class array {
public: public:
typedef T value_type; typedef T value_type;
typedef T* iterator; typedef T* iterator;
typedef const T* const_iterator; typedef const T* const_iterator;
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE iterator begin() { return values; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_iterator begin() const { return values; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE iterator end() { return values + n; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_iterator end() const { return values + n; }
#if !defined(EIGEN_GPUCC)
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE reverse_iterator rbegin() { return reverse_iterator(end());}
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE reverse_iterator rend() { return reverse_iterator(begin()); }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
#endif
EIGEN_DEVICE_FUNC EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE T& operator[] (size_t index) { eigen_internal_assert(index < size()); return values[index]; } EIGEN_STRONG_INLINE T& operator[] (size_t index) { eigen_internal_assert(index < size()); return values[index]; }
EIGEN_DEVICE_FUNC EIGEN_DEVICE_FUNC
@ -42,15 +69,6 @@ template <typename T, size_t n> class array {
EIGEN_DEVICE_FUNC EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const T& back() const { return values[n-1]; } EIGEN_STRONG_INLINE const T& back() const { return values[n-1]; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE iterator begin() { return values; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_iterator begin() const { return values; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE iterator end() { return values + n; }
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE const_iterator end() const { return values + n; }
EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE
static std::size_t size() { return n; } static std::size_t size() { return n; }