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e74fbfb2bc
to preserve SVN history). They are made useless by the new ei_eval_unless_lazy. - introduce a generic Eval member typedef so one can do e.g. T t; U u; Product<T, U>::Eval m; m = t*u;
14 lines
701 B
C++
14 lines
701 B
C++
typedef Matrix3i MyMatrixType;
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MyMatrixType m = MyMatrixType::random(3, 3);
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cout << "Here's the matrix m:" << endl << m << endl;
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typedef Eigen::Eval<Eigen::Block<MyMatrixType,1,MyMatrixType::ColsAtCompileTime> >::MatrixType MyRowType;
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// now MyRowType is just the same typedef as RowVector3i
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MyRowType r = m.row(0);
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cout << "Here's r:" << endl << r << endl;
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typedef Eigen::Eval<Eigen::Block<MyMatrixType> >::MatrixType MyBlockType;
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MyBlockType c = m.corner(Eigen::TopRight, 2, 2);
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// now MyBlockType is a a matrix type where the number of rows and columns
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// are dynamic, but know at compile-time to be <= 2. Therefore no dynamic memory
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// allocation occurs.
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cout << "Here's c:" << endl << c << endl;
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