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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) {}
const Scalar operator()(const Scalar& x) const { return x<m_inf ? m_inf : (x>m_sup ? m_sup : x); }
Scalar m_inf, m_sup;
enum { Cost = Eigen::ConditionalJumpCost + Eigen::NumTraits<Scalar>::AddCost };
};
int main(int, char**)
{
Matrix4d m1 = Matrix4d::random();
cout << m1.cwise(CwiseClampOp<double>(-0.5,0.5)) << endl;
return 0;
}
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