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Add basic iterator support for Eigen::array to ease transition to std::array in third-party libraries.

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This commit is contained in:
Rasmus Munk Larsen 2021-11-18 14:31:42 -08:00
parent c107bd6102
commit 11cb7b8372
1 changed files with 14 additions and 0 deletions
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14
unsupported/Eigen/CXX11/src/util/EmulateArray.h
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@ -18,6 +18,10 @@
namespace Eigen {
template <typename T, size_t n> class array {
public:
typedef T value_type;
typedef T* iterator;
typedef const T* const_iterator;
EIGEN_DEVICE_FUNC
EIGEN_STRONG_INLINE T& operator[] (size_t index) { eigen_internal_assert(index < size()); return values[index]; }
EIGEN_DEVICE_FUNC
@ -38,6 +42,16 @@ template <typename T, size_t n> class array {
EIGEN_DEVICE_FUNC
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
static std::size_t size() { return n; }