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#ifndef _theplu_yat_utility_vector_ |
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#define _theplu_yat_utility_vector_ |
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|
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// $Id$ |
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|
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/* |
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Copyright (C) 2003 Daniel Dalevi, Peter Johansson |
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Copyright (C) 2004 Jari Häkkinen, Peter Johansson |
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Copyright (C) 2005 Jari Häkkinen, Peter Johansson, Markus Ringnér |
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Copyright (C) 2006 Jari Häkkinen |
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Copyright (C) 2007 Jari Häkkinen, Peter Johansson, Markus Ringnér |
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Copyright (C) 2008 Jari Häkkinen, Peter Johansson |
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Copyright (C) 2009, 2012, 2017 Peter Johansson |
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This file is part of the yat library, http://dev.thep.lu.se/yat |
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|
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The yat library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License as |
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published by the Free Software Foundation; either version 3 of the |
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License, or (at your option) any later version. |
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|
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The yat library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with yat. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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#include "config_public.h" |
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#include "VectorMutable.h" |
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#include "Exception.h" |
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|
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#include <cstddef> // size_t |
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#include <iosfwd> |
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#include <stdexcept> |
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#include <gsl/gsl_vector.h> |
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|
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namespace theplu { |
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namespace yat { |
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namespace utility { |
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|
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/** |
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@brief This is the yat interface to GSL vector. |
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|
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\par File streams: |
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Reading and writing vectors to file streams are of course |
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supported. These are implemented without using GSL functionality, |
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and thus binary read and write to streams are not supported. |
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|
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\par Vector views: GSL vector views are supported in classes |
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VectorView and VectorConstView |
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|
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*/ |
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|
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class Vector : public VectorMutable |
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{ |
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public: |
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/** |
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\brief The default constructor. |
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*/ |
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Vector(void); |
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|
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/** |
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\brief Allocates memory space for \a n elements, and sets all |
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elements to \a init_value. |
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|
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\throw GSL_error if memory allocation fails. |
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*/ |
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explicit Vector(size_t n, double init_value=0); |
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|
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/** |
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\brief The copy constructor. |
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|
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\throw A GSL_error is indirectly thrown if memory allocation |
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fails. |
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*/ |
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Vector(const Vector& other); |
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|
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/** |
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\brief Constructor from a vector expression |
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*/ |
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template<class T> |
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Vector(const VectorExpression<T>& other) |
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: VectorMutable(detail::create_gsl_vector_copy(other.gsl_vector_p())) |
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{ |
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} |
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|
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/** |
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\brief The move constructor. |
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|
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\since new in yat 0.15 |
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*/ |
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Vector(Vector&& other) noexcept; |
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|
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/** |
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\brief Move constructor from Vector expression |
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|
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\since new in yat 0.15 |
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*/ |
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template<class T> |
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Vector(VectorExpression<T>&& other) |
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: VectorMutable(other.gsl_vector_p()) |
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{ |
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other.gsl_vector_p(NULL); |
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} |
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|
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/** |
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\brief Copy a VectorBase. |
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|
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\throw A GSL_error is indirectly thrown if memory allocation |
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fails. |
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*/ |
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explicit Vector(const VectorBase& other); |
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|
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/** |
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\brief The istream constructor. |
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|
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Either elements should be separated with white space characters |
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(default), or elements should be separated by the delimiter \a |
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sep. When delimiter \a sep is used empty elements are stored as |
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NaN's (except that empty lines are ignored). The end of input |
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to the Vector is at end of file marker. |
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|
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\throw GSL_error if memory allocation fails, IO_error if |
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unexpected input is found in the input stream. |
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*/ |
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explicit Vector(std::istream &, char sep='\0'); |
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|
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/// |
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/// The destructor. |
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/// |
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~Vector(void); |
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|
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/** |
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\return false |
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*/ |
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bool isview(void) const; |
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|
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/** |
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\brief Resize Vector |
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|
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All elements are set to \a init_value. |
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|
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\note Underlying GSL vector is destroyed and a view or an |
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iterator into this Vector becomes invalid. |
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|
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\throw GSL_error if memory allocation fails. |
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*/ |
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void resize(size_t, double init_value=0); |
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|
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/** |
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\brief The assignment operator. |
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|
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\note Invalidates views and iterators of Vector. |
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|
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\return A const reference to the resulting Vector. |
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|
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\throw GSL_error if assignment fails. |
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*/ |
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const Vector& operator=(const Vector&); |
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|
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/** |
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\brief assignment from vector expression |
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|
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\since new in yat 0.15 |
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*/ |
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template<class T> |
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Vector& operator=(const VectorExpression<T>& rhs) |
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{ |
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// access rhs before deleting vec_ |
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gsl_vector* tmp = detail::create_gsl_vector_copy(rhs.gsl_vector_p()); |
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delete_allocated_memory(); |
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const_vec_ = vec_ = tmp; |
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return *this; |
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} |
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|
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/** |
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\brief The move assignment operator. |
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|
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\note Invalidates views and iterators of Vector. |
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|
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\return A reference to the resulting Vector. |
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|
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\since new in yat 0.15 |
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*/ |
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Vector& operator=(Vector&&); |
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|
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/** |
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\brief move assignment from vector expression |
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|
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\since new in yat 0.15 |
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*/ |
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template<class T> |
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Vector& operator=(VectorExpression<T>&& rhs) |
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{ |
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gsl_vector* tmp = rhs.gsl_vector_p(); |
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delete_allocated_memory(); |
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const_vec_ = vec_ = tmp; |
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rhs.gsl_vector_p(NULL); |
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return *this; |
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} |
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|
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|
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/** |
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\brief The assignment operator. |
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|
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\note Invalidates views and iterators of Vector. |
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|
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\return A const reference to the resulting Vector. |
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|
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\throw GSL_error if assignment fails. |
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*/ |
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const Vector& operator=(const VectorBase&); |
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|
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private: |
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const Vector& assign(const VectorBase& other); |
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const Vector& assign(const gsl_vector* rhs); |
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|
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/** |
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\brief Create a new copy of the internal GSL vector. |
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|
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Necessary memory for the new GSL vector is allocated and the |
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caller is responsible for freeing the allocated memory. |
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|
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\return A pointer to a copy of the internal GSL vector. |
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|
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\throw GSL_error if memory cannot be allocated for the new |
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copy, or if dimensions mis-match. |
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*/ |
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gsl_vector* create_gsl_vector_copy(const VectorBase&) const; |
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|
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|
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void delete_allocated_memory(void); |
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}; |
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|
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/** |
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\brief Swap Vector elements by copying. |
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|
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The two Vectors must have the same length. |
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|
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\throw GSL_error if Vector lengths differs. |
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|
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\relates Vector |
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*/ |
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void swap(Vector&, Vector&); |
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|
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}}} // of namespace utility, yat, and theplu |
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|
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#endif |