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authorGravatar Gael Guennebaud <g.gael@free.fr>2008-03-06 11:36:27 +0000
committerGravatar Gael Guennebaud <g.gael@free.fr>2008-03-06 11:36:27 +0000
commit138aad0ed03cb9045b1f74ce52f0e47ce02966c8 (patch)
treeb1e6ec6111cc8452177ea8d166e94124d387f331 /doc/examples/class_CwiseBinaryOp.cpp
parent8e0d548039f260db2eacb1e54e62e1acdbd4dd09 (diff)
* coefficient wise operators are more generic, with controllable result type.
- compatible with current STL's functors as well as with the extention proposal (TR1) * thanks to the above, Cast and ScalarMultiple have been removed * benchmark_suite is more flexible (compiler and matrix size)
Diffstat (limited to 'doc/examples/class_CwiseBinaryOp.cpp')
-rw-r--r--doc/examples/class_CwiseBinaryOp.cpp11
1 files changed, 5 insertions, 6 deletions
diff --git a/doc/examples/class_CwiseBinaryOp.cpp b/doc/examples/class_CwiseBinaryOp.cpp
index 9bb10cdcb..f5439a434 100644
--- a/doc/examples/class_CwiseBinaryOp.cpp
+++ b/doc/examples/class_CwiseBinaryOp.cpp
@@ -3,9 +3,9 @@ USING_PART_OF_NAMESPACE_EIGEN
using namespace std;
// define a custom template binary functor
-struct CwiseMinOp {
+struct CwiseMinOp EIGEN_EMPTY_STRUCT {
template<typename Scalar>
- static Scalar op(const Scalar& a, const Scalar& b) { return std::min(a,b); }
+ Scalar operator()(const Scalar& a, const Scalar& b) const { return std::min(a,b); }
};
// define a custom binary operator between two matrices
@@ -14,14 +14,13 @@ const Eigen::CwiseBinaryOp<CwiseMinOp, Derived1, Derived2>
cwiseMin(const MatrixBase<Scalar, Derived1> &mat1, const MatrixBase<Scalar, Derived2> &mat2)
{
return Eigen::CwiseBinaryOp<CwiseMinOp, Derived1, Derived2>(mat1.asArg(), mat2.asArg());
- // Note that the above is equivalent to:
- // return mat1.template cwise<CwiseMinOp>(mat2);
}
int main(int, char**)
{
Matrix4d m1 = Matrix4d::random(), m2 = Matrix4d::random();
- cout << cwiseMin(m1,m2) << endl; // use our new global operator
- cout << m1.cwise<CwiseMinOp>(m2) << endl; // directly use the generic expression member
+ cout << cwiseMin(m1,m2) << endl; // use our new global operator
+ cout << m1.cwise<CwiseMinOp>(m2) << endl; // directly use the generic expression member
+ cout << m1.cwise(m2, CwiseMinOp()) << endl; // directly use the generic expression member (variant)
return 0;
}