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255689231d
* functor templates are not template template parameter anymore (this allows to make templated functors !) * Main page: extented compiler discussion * A small hack to support gcc 3.4 and 4.0 (see the main page) * Fix a cast type issue in Cast * Various doxygen updates (mainly Cwise stuff and added doxygen groups in MatrixBase to split the huge memeber list, still not perfect though) * Updated Gael's email address
28 lines
974 B
C++
28 lines
974 B
C++
#include <Eigen/Core>
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USING_PART_OF_NAMESPACE_EIGEN
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using namespace std;
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// define a custom template binary functor
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struct CwiseMinOp {
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template<typename Scalar>
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static Scalar op(const Scalar& a, const Scalar& b) { return std::min(a,b); }
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};
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// define a custom binary operator between two matrices
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template<typename Scalar, typename Derived1, typename Derived2>
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const Eigen::CwiseBinaryOp<CwiseMinOp, Derived1, Derived2>
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cwiseMin(const MatrixBase<Scalar, Derived1> &mat1, const MatrixBase<Scalar, Derived2> &mat2)
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{
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return Eigen::CwiseBinaryOp<CwiseMinOp, Derived1, Derived2>(mat1.ref(), mat2.ref());
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// Note that the above is equivalent to:
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// return mat1.template cwise<CwiseMinOp>(mat2);
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}
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int main(int, char**)
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{
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Matrix4d m1 = Matrix4d::random(), m2 = Matrix4d::random();
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cout << cwiseMin(m1,m2) << endl; // use our new global operator
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cout << m1.cwise<CwiseMinOp>(m2) << endl; // directly use the generic expression member
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return 0;
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}
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