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constexpr reshape helper

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This commit is contained in:
Erik Schultheis 2022-04-05 17:32:17 +00:00 committed by Antonio Sánchez
parent 403fa33409
commit df87d40e34
2 changed files with 7 additions and 8 deletions
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7
Eigen/src/Core/util/ReshapedHelper.h
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@ -41,10 +41,9 @@ inline Index get_runtime_reshape_size(AutoSize_t /*size*/, Index other, Index to
return total/other; return total/other;
} }
template<int Flags, int Order> constexpr inline int get_compiletime_reshape_order(int flags, int order) {
struct get_compiletime_reshape_order { return order == AutoOrder ? flags & RowMajorBit : order;
enum { value = Order == AutoOrder ? Flags & RowMajorBit : Order }; }
};
} }

8
Eigen/src/plugins/ReshapedMethods.h
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@ -105,13 +105,13 @@ EIGEN_DEVICE_FUNC
inline Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, inline Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived,
internal::get_compiletime_reshape_size<NRowsType,NColsType,SizeAtCompileTime>::value, internal::get_compiletime_reshape_size<NRowsType,NColsType,SizeAtCompileTime>::value,
internal::get_compiletime_reshape_size<NColsType,NRowsType,SizeAtCompileTime>::value, internal::get_compiletime_reshape_size<NColsType,NRowsType,SizeAtCompileTime>::value,
internal::get_compiletime_reshape_order<Flags,Order>::value> internal::get_compiletime_reshape_order(Flags, Order)>
reshaped(NRowsType nRows, NColsType nCols) EIGEN_RESHAPED_METHOD_CONST reshaped(NRowsType nRows, NColsType nCols) EIGEN_RESHAPED_METHOD_CONST
{ {
return Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, return Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived,
internal::get_compiletime_reshape_size<NRowsType,NColsType,SizeAtCompileTime>::value, internal::get_compiletime_reshape_size<NRowsType,NColsType,SizeAtCompileTime>::value,
internal::get_compiletime_reshape_size<NColsType,NRowsType,SizeAtCompileTime>::value, internal::get_compiletime_reshape_size<NColsType,NRowsType,SizeAtCompileTime>::value,
internal::get_compiletime_reshape_order<Flags,Order>::value> internal::get_compiletime_reshape_order(Flags, Order)>
(derived(), (derived(),
internal::get_runtime_reshape_size(nRows,internal::get_runtime_value(nCols),size()), internal::get_runtime_reshape_size(nRows,internal::get_runtime_value(nCols),size()),
internal::get_runtime_reshape_size(nCols,internal::get_runtime_value(nRows),size())); internal::get_runtime_reshape_size(nCols,internal::get_runtime_value(nRows),size()));
@ -129,12 +129,12 @@ reshaped() EIGEN_RESHAPED_METHOD_CONST
template<int Order> template<int Order>
EIGEN_DEVICE_FUNC EIGEN_DEVICE_FUNC
inline Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, SizeAtCompileTime, 1, inline Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, SizeAtCompileTime, 1,
internal::get_compiletime_reshape_order<Flags,Order>::value> internal::get_compiletime_reshape_order(Flags, Order)>
reshaped() EIGEN_RESHAPED_METHOD_CONST reshaped() EIGEN_RESHAPED_METHOD_CONST
{ {
EIGEN_STATIC_ASSERT(Order==RowMajor || Order==ColMajor || Order==AutoOrder, INVALID_TEMPLATE_PARAMETER); EIGEN_STATIC_ASSERT(Order==RowMajor || Order==ColMajor || Order==AutoOrder, INVALID_TEMPLATE_PARAMETER);
return Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, SizeAtCompileTime, 1, return Reshaped<EIGEN_RESHAPED_METHOD_CONST Derived, SizeAtCompileTime, 1,
internal::get_compiletime_reshape_order<Flags,Order>::value> internal::get_compiletime_reshape_order(Flags, Order)>
(derived(), size(), 1); (derived(), size(), 1);
} }