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Fix const input and c++20 compatibility in unary view.

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Antonio Sánchez 2024-03-13 16:59:44 +00:00 committed by Rasmus Munk Larsen
parent 126ba1a166
commit 285da30ec3
1 changed files with 4 additions and 2 deletions
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6
Eigen/src/Core/CwiseUnaryView.h
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@ -18,9 +18,11 @@ namespace Eigen {
namespace internal {
template <typename ViewOp, typename MatrixType, typename StrideType>
struct traits<CwiseUnaryView<ViewOp, MatrixType, StrideType> > : traits<MatrixType> {
typedef typename std::result_of<ViewOp(typename traits<MatrixType>::Scalar&)>::type ScalarRef;
typedef typename result_of<ViewOp(typename traits<MatrixType>::Scalar&)>::type1 ScalarRef;
static_assert(std::is_reference<ScalarRef>::value, "Views must return a reference type.");
typedef remove_all_t<ScalarRef> Scalar;
typedef remove_all_t<ScalarRef> MutableScalar;
// Ensure const matrices stay const.
typedef std::conditional_t<std::is_const<MatrixType>::value, const MutableScalar, MutableScalar> Scalar;
typedef typename MatrixType::Nested MatrixTypeNested;
typedef remove_all_t<MatrixTypeNested> MatrixTypeNested_;
enum {