CommonCwiseBinaryOps.h File Reference

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Functions
template<typename CustomBinaryOp , typename OtherDerived >
EIGEN_DEVICE_FUNC const EIGEN_STRONG_INLINE CwiseBinaryOp< CustomBinaryOp, const Derived, const OtherDerived >	binaryExpr (const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &other, const CustomBinaryOp &func=CustomBinaryOp()) const
template<typename OtherDerived >
const EIGEN_DEVICE_FUNC CwiseBinaryOp< internal::scalar_boolean_and_op, const Derived, const OtherDerived >	operator&& (const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &other) const
template<typename OtherDerived >
const EIGEN_DEVICE_FUNC CwiseBinaryOp< internal::scalar_boolean_or_op, const Derived, const OtherDerived >	operator|| (const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &other) const

Function Documentation

binaryExpr()

template<typename CustomBinaryOp , typename OtherDerived >

EIGEN_DEVICE_FUNC const EIGEN_STRONG_INLINE CwiseBinaryOp<CustomBinaryOp, const Derived, const OtherDerived> binaryExpr	(	const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &	other,
		const CustomBinaryOp &	func = CustomBinaryOp()
	)		const

Returns

an expression of the difference of *this and other

Note

If you want to substract a given scalar from all coefficients, see Cwise::operator-().

See also

class CwiseBinaryOp, operator-=()

Returns

an expression of the sum of *this and other

Note

If you want to add a given scalar to all coefficients, see Cwise::operator+().

See also

class CwiseBinaryOp, operator+=()

Returns

an expression of a custom coefficient-wise operator func of *this and other

The template parameter CustomBinaryOp is the type of the functor of the custom operator (see class CwiseBinaryOp for an example)

Here is an example illustrating the use of custom functors:

#include <Eigen/Core>
#include <iostream>
using namespace Eigen;
using namespace std;
 
// define a custom template binary functor
template<typename Scalar> struct MakeComplexOp {
  EIGEN_EMPTY_STRUCT_CTOR(MakeComplexOp)
  typedef complex<Scalar> result_type;
  complex<Scalar> operator()(const Scalar& a, const Scalar& b) const { return complex<Scalar>(a,b); }
};
 
int main(int, char**)
{
  Matrix4d m1 = Matrix4d::Random(), m2 = Matrix4d::Random();
  cout << m1.binaryExpr(m2, MakeComplexOp<double>()) << endl;
  return 0;
}

Output:

See also

class CwiseBinaryOp, operator+(), operator-(), cwiseProduct()

Definition at line 43 of file CommonCwiseBinaryOps.h.

operator&&()

template<typename OtherDerived >

const EIGEN_DEVICE_FUNC CwiseBinaryOp<internal::scalar_boolean_and_op, const Derived, const OtherDerived> operator&& ( const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &  other ) const

inline

Returns

an expression of the coefficient-wise boolean and operator of *this and other

Warning

this operator is for expression of bool only.

Example:

Array3d v(-1,2,1), w(-3,2,3);
cout << ((v<w) && (v<0)) << endl;

Output:

See also

operator||(), select()

Definition at line 91 of file CommonCwiseBinaryOps.h.

operator||()

template<typename OtherDerived >

const EIGEN_DEVICE_FUNC CwiseBinaryOp<internal::scalar_boolean_or_op, const Derived, const OtherDerived> operator|| ( const EIGEN_CURRENT_STORAGE_BASE_CLASS< OtherDerived > &  other ) const

inline

Returns

an expression of the coefficient-wise boolean or operator of *this and other

Warning

this operator is for expression of bool only.

Example:

Array3d v(-1,2,1), w(-3,2,3);
cout << ((v<w) || (v<0)) << endl;

Output:

See also

operator&&(), select()

Definition at line 110 of file CommonCwiseBinaryOps.h.