ground/gcs/src/libs/eigen/doc/examples/class_CwiseBinaryOp.cpp

   1 #include <Eigen/Core>
   2 #include <iostream>
   3 using namespace Eigen;
   4 using namespace std;
   5
   6 // define a custom template binary functor
   7 template<typename Scalar> struct MakeComplexOp {
   8   EIGEN_EMPTY_STRUCT_CTOR(MakeComplexOp)
   9   typedef complex<Scalar> result_type;
  10   complex<Scalar> operator()(const Scalar& a, const Scalar& b) const { return complex<Scalar>(a,b); }
  11 };
  12
  13 int main(int, char**)
  14 {
  15   Matrix4d m1 = Matrix4d::Random(), m2 = Matrix4d::Random();
  16   cout << m1.binaryExpr(m2, MakeComplexOp<double>()) << endl;
  17   return 0;
  18 }