1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
5 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
6 //
7 // This Source Code Form is subject to the terms of the Mozilla
8 // Public License v. 2.0. If a copy of the MPL was not distributed
9 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
10 
11 // This file is a base class plugin containing common coefficient wise functions.
12 
13 /** \returns an expression of the difference of \c *this and \a other
14   *
15   * \note If you want to substract a given scalar from all coefficients, see Cwise::operator-().
16   *
17   * \sa class CwiseBinaryOp, operator-=()
18   */
19 EIGEN_MAKE_CWISE_BINARY_OP(operator-,internal::scalar_difference_op)
20 
21 /** \returns an expression of the sum of \c *this and \a other
22   *
23   * \note If you want to add a given scalar to all coefficients, see Cwise::operator+().
24   *
25   * \sa class CwiseBinaryOp, operator+=()
26   */
27 EIGEN_MAKE_CWISE_BINARY_OP(operator+,internal::scalar_sum_op)
28 
29 /** \returns an expression of a custom coefficient-wise operator \a func of *this and \a other
30   *
31   * The template parameter \a CustomBinaryOp is the type of the functor
32   * of the custom operator (see class CwiseBinaryOp for an example)
33   *
34   * Here is an example illustrating the use of custom functors:
35   * \include class_CwiseBinaryOp.cpp
36   * Output: \verbinclude class_CwiseBinaryOp.out
37   *
38   * \sa class CwiseBinaryOp, operator+(), operator-(), cwiseProduct()
39   */
40 template<typename CustomBinaryOp, typename OtherDerived>
41 EIGEN_STRONG_INLINE const CwiseBinaryOp<CustomBinaryOp, const Derived, const OtherDerived>
42 binaryExpr(const EIGEN_CURRENT_STORAGE_BASE_CLASS<OtherDerived> &other, const CustomBinaryOp& func = CustomBinaryOp()) const
43 {
44   return CwiseBinaryOp<CustomBinaryOp, const Derived, const OtherDerived>(derived(), other.derived(), func);
45 }
46 
47