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diff --git a/libdimensionxx/dimensionxx/array.hpp b/libdimensionxx/dimensionxx/array.hpp
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-/*************************************************************************
- * Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
- * *
- * This file is part of The Dimension Library. *
- * *
- * The Dimension Library is free software; you can redistribute it and/ *
- * or modify it under the terms of the GNU Lesser General Public License *
- * as published by the Free Software Foundation; either version 3 of the *
- * License, or (at your option) any later version. *
- * *
- * The Dimension Library is distributed in the hope that it will be *
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
- * Lesser General Public License for more details. *
- * *
- * You should have received a copy of the GNU Lesser General Public *
- * License along with this program. If not, see *
- * <http://www.gnu.org/licenses/>. *
- *************************************************************************/
-
-// dmnsn_array* wrapper.
-
-#ifndef DIMENSIONXX_ARRAY_HPP
-#define DIMENSIONXX_ARRAY_HPP
-
-#include <tr1/memory> // For tr1::shared_ptr
-#include <cstdlib> // For size_t
-#include <vector>
-
-namespace Dimension
-{
- // Class to store POD types, and wrapped dmnsn_* types, including polymorphic
- // types. The non-specialized version will only handle POD types; specialize
- // it to allow storage of classes in Array's.
- template <typename T>
- class Array_Element
- {
- public:
- typedef T C_Type;
-
- inline Array_Element();
- inline Array_Element(T t);
-
- // Specializations should implement this constructor if C_Type differs from
- // T - but it should throw if T is a polymorphic type
- // Array_Element(C_Type c);
-
- // Array_Element(const Array_Element& ae);
- // ~Array_Element();
-
- // Array_Element& operator=(const Array_Element& ae);
-
- C_Type dmnsn() const { return m_t; }
- T& object(C_Type& c) const { return c; }
-
- // Must the dmnsn_array* be rebuilt on every access?
- static const bool must_rebuild = false;
-
- private:
- T m_t;
- };
-
- // Array template class, wraps a dmnsn_array*. Copying is possible, but
- // copies refer to the same object, which is reference counted. T must be
- // a POD type.
- template <typename T>
- class Array
- {
- public:
- inline Array();
- explicit inline Array(dmnsn_array* array);
- // Array(const Array& a);
- ~Array()
- { if (m_array && m_array.unique()) { dmnsn_delete_array(dmnsn()); } }
-
- // Array& operator=(const Array& a);
-
- inline T& operator[](std::size_t i);
- inline const T& operator[](std::size_t i) const;
-
- std::size_t size() const { return dmnsn_array_size(dmnsn()); }
- inline void resize(std::size_t size);
-
- inline void push(T& object);
- inline void push(const T& object); // Not valid for polymorphic types
- inline void pop();
-
- // Access the wrapped C object.
- inline dmnsn_array* dmnsn();
- inline const dmnsn_array* dmnsn() const;
-
- // Release ownership of the dmnsn_array*, needed for returning a
- // dmnsn_array* from a function.
- inline dmnsn_array* release();
-
- private:
- typedef typename Array_Element<T>::C_Type C_Type;
-
- std::tr1::shared_ptr<dmnsn_array*> m_array;
- std::vector<Array_Element<T> > m_elements;
-
- inline void rebuild() const;
- };
-
- // Base class for non-polymorphic wrappers
- template <typename T, typename C>
- class By_Value_Array_Element
- {
- public:
- typedef C C_Type;
-
- By_Value_Array_Element() : m_object(new T()) { }
- By_Value_Array_Element(const T& object) : m_object(new T(object)) { }
- By_Value_Array_Element(C_Type c) : m_object(new T(c)) { }
- // By_Value_Array_Element(const By_Value_Array_Element& ae);
- // ~By_Value_Array_Element();
-
- // By_Value_Array_Element& operator=(const By_Value_Array_Element& ae);
-
- C_Type dmnsn() const { return m_object->dmnsn(); }
- T& object(C_Type& c) const { *m_object = T(c); return *m_object; }
-
- static const bool must_rebuild = true;
-
- private:
- std::tr1::shared_ptr<T> m_object;
- };
-
- // Base class for non-polymorphic wrappers
- template <typename T, typename C>
- class DMNSN_Array_Element
- {
- public:
- typedef C C_Type;
-
- DMNSN_Array_Element() {
- throw Dimension_Error("Couldn't default-construct an array element.");
- }
-
- DMNSN_Array_Element(const T& object) : m_object(new T(object)) { }
- DMNSN_Array_Element(C_Type c) : m_object(new T(c)) { }
- // DMNSN_Array_Element(const DMNSN_Array_Element& ae);
- // ~DMNSN_Array_Element();
-
- // DMNSN_Array_Element& operator=(const DMNSN_Array_Element& ae);
-
- C_Type dmnsn() const { return m_object->dmnsn(); }
- T& object(C_Type& c) const { return *m_object; }
-
- static const bool must_rebuild = false;
-
- private:
- std::tr1::shared_ptr<T> m_object;
- };
-
- // Base class for polymorphic wrappers
- template <typename T, typename C>
- class Polymorphic_Array_Element
- {
- public:
- typedef C C_Type;
-
- Polymorphic_Array_Element()
- {
- throw Dimension_Error("Cannot default-construct a polymorphic array"
- " object.");
- }
-
- Polymorphic_Array_Element(T& object) : m_object(object.copy()) { }
-
- Polymorphic_Array_Element(C_Type c)
- {
- throw Dimension_Error("Cannot wrap existing dmnsn_array* elements in"
- " polymorphic class.");
- }
-
- // Polymorphic_Array_Element(const Polymorphic_Array_Element& ae);
- // ~Polymorphic_Array_Element();
-
- // Polymorphic_Array_Element& operator=(const Polymorphic_Array_Element& e);
-
- C_Type dmnsn() const { return m_object->dmnsn(); }
- T& object(C_Type& c) const { return *m_object; }
-
- static const bool must_rebuild = false;
-
- private:
- std::tr1::shared_ptr<T> m_object;
- };
-
- // Array_Element
-
- template <typename T>
- inline
- Array_Element<T>::Array_Element()
- {
- void (*constraint)() = &POD_constraint<T>;
- static_cast<void>(constraint); // Silence unused variable warning
- }
-
- template <typename T>
- inline
- Array_Element<T>::Array_Element(T t)
- : m_t(t)
- {
- void (*constraint)() = &POD_constraint<T>;
- static_cast<void>(constraint); // Silence unused variable warning
- }
-
- // Array constructors
-
- template <typename T>
- inline
- Array<T>::Array()
- : m_array(new dmnsn_array*(dmnsn_new_array(sizeof(T)))) { }
-
- template <typename T>
- inline
- Array<T>::Array(dmnsn_array* array)
- : m_array(new dmnsn_array*(array))
- {
- m_elements.reserve(dmnsn_array_size(dmnsn()));
- for (std::size_t i = 0; i < dmnsn_array_size(dmnsn()); ++i) {
- C_Type* c = reinterpret_cast<C_Type*>(dmnsn_array_at(dmnsn(), i));
- m_elements.push_back(Array_Element<T>(*c));
- }
- }
-
- // Array element access
-
- template <typename T>
- inline T&
- Array<T>::operator[](std::size_t i)
- {
- if (i >= m_elements.size()) {
- m_elements.resize(i + 1);
- }
- C_Type* c = reinterpret_cast<C_Type*>(dmnsn_array_at(dmnsn(), i));
- return m_elements[i].object(c);
- }
-
- template <typename T>
- inline const T&
- Array<T>::operator[](std::size_t i) const
- {
- if (i >= m_elements.size()) {
- m_elements.resize(i + 1);
- }
- C_Type* c = reinterpret_cast<C_Type*>(dmnsn_array_at(dmnsn(), i));
- return m_elements[i].object(c);
- }
-
- template <typename T>
- inline void
- Array<T>::resize(std::size_t size)
- {
- m_elements.resize(size);
- dmnsn_array_resize(dmnsn(), size);
- }
-
- template <typename T>
- inline void
- Array<T>::push(T& object)
- {
- Array_Element<T> ae(object);
- m_elements.push_back(ae);
-
- C_Type c = ae.dmnsn();
- dmnsn_array_push(dmnsn(), &c);
- }
-
- template <typename T>
- inline void
- Array<T>::push(const T& object)
- {
- Array_Element<T> ae(object);
- m_elements.push_back(ae);
-
- C_Type c = ae.dmnsn();
- dmnsn_array_push(dmnsn(), &c);
- }
-
- template <typename T>
- inline void
- Array<T>::pop()
- {
- m_elements.pop();
- dmnsn_array_resize(dmnsn_array_size(dmnsn()) - 1);
- }
-
- // Access the underlying dmnsn_array*
-
- template <typename T>
- inline dmnsn_array*
- Array<T>::dmnsn()
- {
- if (!m_array) {
- throw Dimension_Error("Attempting to access released array.");
- }
-
- if (Array_Element<T>::must_rebuild) {
- rebuild();
- }
-
- return *m_array;
- }
-
- template <typename T>
- inline const dmnsn_array*
- Array<T>::dmnsn() const
- {
- if (!m_array) {
- throw Dimension_Error("Attempting to access released array.");
- }
-
- if (Array_Element<T>::must_rebuild) {
- rebuild();
- }
-
- return *m_array;
- }
-
- // Release the dmnsn_array*, if we are the only Array holding it
- template <typename T>
- inline dmnsn_array*
- Array<T>::release()
- {
- dmnsn_array* array = dmnsn();
-
- if (!m_array.unique()) {
- throw Dimension_Error("Attempting to release non-unique array.");
- } else {
- m_array.reset();
- return array;
- }
- }
-
- // Rebuild the dmnsn_array* from the C++ elements, needed if the C++ objects
- // wrap their C objects by value, not reference
- template <typename T>
- inline void
- Array<T>::rebuild() const
- {
- for (std::size_t i = 0; i < size(); ++i) {
- C_Type c = m_elements[i].dmnsn();
- dmnsn_array_set(*m_array, i, &c);
- }
- }
-}
-
-#endif /* DIMENSIONXX_ARRAY_HPP */
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