93 lines
3.6 KiB
C
93 lines
3.6 KiB
C
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2010-2012 Gael Guennebaud <gael.guennebaud@inria.fr>
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// Copyright (C) 2010 Benoit Jacob <jacob.benoit.1@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef EIGEN_GLOBAL_FUNCTIONS_H
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#define EIGEN_GLOBAL_FUNCTIONS_H
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#define EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(NAME,FUNCTOR) \
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template<typename Derived> \
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inline const Eigen::CwiseUnaryOp<Eigen::internal::FUNCTOR<typename Derived::Scalar>, const Derived> \
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NAME(const Eigen::ArrayBase<Derived>& x) { \
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return x.derived(); \
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}
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#define EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(NAME,FUNCTOR) \
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\
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template<typename Derived> \
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struct NAME##_retval<ArrayBase<Derived> > \
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{ \
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typedef const Eigen::CwiseUnaryOp<Eigen::internal::FUNCTOR<typename Derived::Scalar>, const Derived> type; \
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}; \
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template<typename Derived> \
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struct NAME##_impl<ArrayBase<Derived> > \
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{ \
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static inline typename NAME##_retval<ArrayBase<Derived> >::type run(const Eigen::ArrayBase<Derived>& x) \
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{ \
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return x.derived(); \
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} \
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};
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namespace Eigen
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{
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(real,scalar_real_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(imag,scalar_imag_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(conj,scalar_conjugate_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(sin,scalar_sin_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(cos,scalar_cos_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(asin,scalar_asin_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(acos,scalar_acos_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(tan,scalar_tan_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(exp,scalar_exp_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(log,scalar_log_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(abs,scalar_abs_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(sqrt,scalar_sqrt_op)
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template<typename Derived>
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inline const Eigen::CwiseUnaryOp<Eigen::internal::scalar_pow_op<typename Derived::Scalar>, const Derived>
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pow(const Eigen::ArrayBase<Derived>& x, const typename Derived::Scalar& exponent) {
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return x.derived().pow(exponent);
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}
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template<typename Derived>
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inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_binary_pow_op<typename Derived::Scalar, typename Derived::Scalar>, const Derived, const Derived>
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pow(const Eigen::ArrayBase<Derived>& x, const Eigen::ArrayBase<Derived>& exponents)
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{
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return Eigen::CwiseBinaryOp<Eigen::internal::scalar_binary_pow_op<typename Derived::Scalar, typename Derived::Scalar>, const Derived, const Derived>(
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x.derived(),
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exponents.derived()
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);
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}
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/**
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* \brief Component-wise division of a scalar by array elements.
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**/
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template <typename Derived>
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inline const Eigen::CwiseUnaryOp<Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>, const Derived>
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operator/(const typename Derived::Scalar& s, const Eigen::ArrayBase<Derived>& a)
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{
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return Eigen::CwiseUnaryOp<Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>, const Derived>(
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a.derived(),
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Eigen::internal::scalar_inverse_mult_op<typename Derived::Scalar>(s)
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);
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}
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namespace internal
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{
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EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(real,scalar_real_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(imag,scalar_imag_op)
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EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(abs2,scalar_abs2_op)
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}
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}
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// TODO: cleanly disable those functions that are not supported on Array (numext::real_ref, internal::random, internal::isApprox...)
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#endif // EIGEN_GLOBAL_FUNCTIONS_H
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