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rk35xx-android14/external/eigen/doc/examples/make_circulant.cpp.expression
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hmz007 36ed224bac Rockchip Anroid14_SDK 20240628-rkr5 (2556df1a)
Signed-off-by: hmz007 <hmz007@gmail.com>
Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
2024-10-29 18:12:02 +08:00

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template <class ArgType>
class Circulant : public Eigen::MatrixBase<Circulant<ArgType> >
{
public:
Circulant(const ArgType& arg)
: m_arg(arg)
{
EIGEN_STATIC_ASSERT(ArgType::ColsAtCompileTime == 1,
YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX);
}
typedef typename Eigen::internal::ref_selector<Circulant>::type Nested;
typedef Eigen::Index Index;
Index rows() const { return m_arg.rows(); }
Index cols() const { return m_arg.rows(); }
typedef typename Eigen::internal::ref_selector<ArgType>::type ArgTypeNested;
ArgTypeNested m_arg;
};