1 | // This file is part of Eigen, a lightweight C++ template library |
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2 | // for linear algebra. |
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3 | // |
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4 | // Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr> |
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5 | // Copyright (C) 2010 Benoit Jacob <jacob.benoit.1@gmail.com> |
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6 | // |
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7 | // This Source Code Form is subject to the terms of the Mozilla |
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8 | // Public License v. 2.0. If a copy of the MPL was not distributed |
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9 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
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10 | |
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11 | #ifndef EIGEN_GLOBAL_FUNCTIONS_H |
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12 | #define EIGEN_GLOBAL_FUNCTIONS_H |
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13 | |
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14 | #define EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(NAME,FUNCTOR) \ |
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15 | template<typename Derived> \ |
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16 | inline const Eigen::CwiseUnaryOp<Eigen::internal::FUNCTOR<typename Derived::Scalar>, const Derived> \ |
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17 | NAME(const Eigen::ArrayBase<Derived>& x) { \ |
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18 | return x.derived(); \ |
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19 | } |
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20 | |
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21 | #define EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(NAME,FUNCTOR) \ |
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22 | \ |
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23 | template<typename Derived> \ |
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24 | struct NAME##_retval<ArrayBase<Derived> > \ |
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25 | { \ |
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26 | typedef const Eigen::CwiseUnaryOp<Eigen::internal::FUNCTOR<typename Derived::Scalar>, const Derived> type; \ |
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27 | }; \ |
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28 | template<typename Derived> \ |
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29 | struct NAME##_impl<ArrayBase<Derived> > \ |
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30 | { \ |
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31 | static inline typename NAME##_retval<ArrayBase<Derived> >::type run(const Eigen::ArrayBase<Derived>& x) \ |
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32 | { \ |
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33 | return x.derived(); \ |
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34 | } \ |
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35 | }; |
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36 | |
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37 | |
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38 | namespace std |
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39 | { |
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40 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(real,scalar_real_op) |
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41 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(imag,scalar_imag_op) |
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42 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(sin,scalar_sin_op) |
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43 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(cos,scalar_cos_op) |
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44 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(asin,scalar_asin_op) |
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45 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(acos,scalar_acos_op) |
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46 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(tan,scalar_tan_op) |
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47 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(exp,scalar_exp_op) |
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48 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(log,scalar_log_op) |
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49 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(abs,scalar_abs_op) |
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50 | EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(sqrt,scalar_sqrt_op) |
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51 | |
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52 | template<typename Derived> |
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53 | inline const Eigen::CwiseUnaryOp<Eigen::internal::scalar_pow_op<typename Derived::Scalar>, const Derived> |
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54 | pow(const Eigen::ArrayBase<Derived>& x, const typename Derived::Scalar& exponent) { |
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55 | return x.derived().pow(exponent); |
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56 | } |
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57 | |
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58 | template<typename Derived> |
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59 | inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_binary_pow_op<typename Derived::Scalar, typename Derived::Scalar>, const Derived, const Derived> |
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60 | pow(const Eigen::ArrayBase<Derived>& x, const Eigen::ArrayBase<Derived>& exponents) |
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61 | { |
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62 | return Eigen::CwiseBinaryOp<Eigen::internal::scalar_binary_pow_op<typename Derived::Scalar, typename Derived::Scalar>, const Derived, const Derived>( |
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63 | x.derived(), |
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64 | exponents.derived() |
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65 | ); |
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66 | } |
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67 | } |
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68 | |
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69 | namespace Eigen |
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70 | { |
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71 | /** |
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72 | * \brief Component-wise division of a scalar by array elements. |
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73 | **/ |
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74 | template <typename Derived> |
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75 | inline const Eigen::CwiseUnaryOp<Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>, const Derived> |
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76 | operator/(typename Derived::Scalar s, const Eigen::ArrayBase<Derived>& a) |
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77 | { |
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78 | return Eigen::CwiseUnaryOp<Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>, const Derived>( |
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79 | a.derived(), |
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80 | Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>(s) |
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81 | ); |
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82 | } |
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83 | |
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84 | namespace internal |
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85 | { |
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86 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(real,scalar_real_op) |
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87 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(imag,scalar_imag_op) |
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88 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(sin,scalar_sin_op) |
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89 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(cos,scalar_cos_op) |
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90 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(asin,scalar_asin_op) |
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91 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(acos,scalar_acos_op) |
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92 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(tan,scalar_tan_op) |
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93 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(exp,scalar_exp_op) |
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94 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(log,scalar_log_op) |
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95 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(abs,scalar_abs_op) |
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96 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(abs2,scalar_abs2_op) |
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97 | EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(sqrt,scalar_sqrt_op) |
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98 | } |
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99 | } |
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100 | |
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101 | // TODO: cleanly disable those functions that are not supported on Array (internal::real_ref, internal::random, internal::isApprox...) |
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102 | |
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103 | #endif // EIGEN_GLOBAL_FUNCTIONS_H |
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