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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_CwiseUnaryOp.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)
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diff --git a/doc/examples/class_CwiseUnaryOp.cpp b/doc/examples/class_CwiseUnaryOp.cpp
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+#include <Eigen/Core>
+USING_PART_OF_NAMESPACE_EIGEN
+using namespace std;
+
+// define a custom template binary functor
+template<typename Scalar>
+struct CwiseClampOp EIGEN_EMPTY_STRUCT {
+ CwiseClampOp(const Scalar& inf, const Scalar& sup) : m_inf(inf), m_sup(sup) {}
+ Scalar operator()(const Scalar& x) const { return x<m_inf ? m_inf : (x>m_sup : m_sup : x); }
+};
+
+int main(int, char**)
+{
+ Matrix4d m1 = Matrix4d::random(), m2 = Matrix4d::random();
+ cout << m1.cwise(m2, CwiseClampOp<Matrix4d::Scalar>(-0.5,0.5)) << endl;
+ return 0;
+}