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authorGravatar Kenneth Riddile <kfriddile@gmail.com>2010-07-26 19:06:47 -0400
committerGravatar Kenneth Riddile <kfriddile@gmail.com>2010-07-26 19:06:47 -0400
commitb038a4bb71514d90fed7d71ec40210bbf775b5ec (patch)
tree0f8fcd15006436d9d173961defd6dc6ac4656a53 /Eigen/src/StlSupport/StdDeque.h
parent1420f8b3a16e025ca54402a2feb17f8ed4b41694 (diff)
* added EIGEN_ALIGNED_ALLOCATOR macro to allow specifying a different aligned allocator
* attempted to add support for std::deque by copying and modifying the std::vector implementation...MSVC still fails to compile with the std::deque::resize() "will not be aligned" error...probably missing something simple but I'm not sure how to make it work
Diffstat (limited to 'Eigen/src/StlSupport/StdDeque.h')
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diff --git a/Eigen/src/StlSupport/StdDeque.h b/Eigen/src/StlSupport/StdDeque.h
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+++ b/Eigen/src/StlSupport/StdDeque.h
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+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+// Copyright (C) 2009 Hauke Heibel <hauke.heibel@googlemail.com>
+//
+// Eigen 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.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen 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 or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EIGEN_STDDEQUE_H
+#define EIGEN_STDDEQUE_H
+
+#include "Eigen/src/StlSupport/details.h"
+
+// Define the explicit instantiation (e.g. necessary for the Intel compiler)
+#if defined(__INTEL_COMPILER) || defined(__GNUC__)
+ #define EIGEN_EXPLICIT_STL_DEQUE_INSTANTIATION(...) template class std::deque<__VA_ARGS__, EIGEN_ALIGNED_ALLOCATOR<__VA_ARGS__> >;
+#else
+ #define EIGEN_EXPLICIT_STL_DEQUE_INSTANTIATION(...)
+#endif
+
+/**
+ * This section contains a convenience MACRO which allows an easy specialization of
+ * std::deque such that for data types with alignment issues the correct allocator
+ * is used automatically.
+ */
+#define EIGEN_DEFINE_STL_DEQUE_SPECIALIZATION(...) \
+EIGEN_EXPLICIT_STL_DEQUE_INSTANTIATION(__VA_ARGS__) \
+namespace std \
+{ \
+ template<typename _Ay> \
+ class deque<__VA_ARGS__, _Ay> \
+ : public deque<__VA_ARGS__, EIGEN_ALIGNED_ALLOCATOR<__VA_ARGS__> > \
+ { \
+ typedef deque<__VA_ARGS__, EIGEN_ALIGNED_ALLOCATOR<__VA_ARGS__> > deque_base; \
+ public: \
+ typedef __VA_ARGS__ value_type; \
+ typedef typename deque_base::allocator_type allocator_type; \
+ typedef typename deque_base::size_type size_type; \
+ typedef typename deque_base::iterator iterator; \
+ explicit deque(const allocator_type& a = allocator_type()) : deque_base(a) {} \
+ template<typename InputIterator> \
+ deque(InputIterator first, InputIterator last, const allocator_type& a = allocator_type()) : deque_base(first, last, a) {} \
+ deque(const deque& c) : deque_base(c) {} \
+ explicit deque(size_type num, const value_type& val = value_type()) : deque_base(num, val) {} \
+ deque(iterator start, iterator end) : deque_base(start, end) {} \
+ deque& operator=(const deque& x) { \
+ deque_base::operator=(x); \
+ return *this; \
+ } \
+ }; \
+}
+
+// check whether we really need the std::deque specialization
+#if !(defined(_GLIBCXX_DEQUE) && (!EIGEN_GNUC_AT_LEAST(4,1))) /* Note that before gcc-4.1 we already have: std::deque::resize(size_type,const T&). */
+
+namespace std {
+
+#define EIGEN_STD_DEQUE_SPECIALIZATION_BODY \
+ public: \
+ typedef T value_type; \
+ typedef typename deque_base::allocator_type allocator_type; \
+ typedef typename deque_base::size_type size_type; \
+ typedef typename deque_base::iterator iterator; \
+ typedef typename deque_base::const_iterator const_iterator; \
+ explicit deque(const allocator_type& a = allocator_type()) : deque_base(a) {} \
+ template<typename InputIterator> \
+ deque(InputIterator first, InputIterator last, const allocator_type& a = allocator_type()) \
+ : deque_base(first, last, a) {} \
+ deque(const deque& c) : deque_base(c) {} \
+ explicit deque(size_type num, const value_type& val = value_type()) : deque_base(num, val) {} \
+ deque(iterator start, iterator end) : deque_base(start, end) {} \
+ deque& operator=(const deque& x) { \
+ deque_base::operator=(x); \
+ return *this; \
+ }
+
+ template<typename T>
+ class deque<T,EIGEN_ALIGNED_ALLOCATOR<T> >
+ : public deque<EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T),
+ Eigen::aligned_allocator_indirection<EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T)> >
+{
+ typedef deque<EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T),
+ Eigen::aligned_allocator_indirection<EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T)> > deque_base;
+ EIGEN_STD_DEQUE_SPECIALIZATION_BODY
+
+ void resize(size_type new_size)
+ { resize(new_size, T()); }
+
+#if defined(_DEQUE_)
+ #pragma message("old method")
+ // workaround MSVC std::deque implementation
+ void resize(size_type new_size, const value_type& x)
+ {
+ if (deque_base::size() < new_size)
+ deque_base::_Insert_n(deque_base::end(), new_size - deque_base::size(), x);
+ else if (new_size < deque_base::size())
+ deque_base::erase(deque_base::begin() + new_size, deque_base::end());
+ }
+ void push_back(const value_type& x)
+ { deque_base::push_back(x); }
+ void push_front(const value_type& x)
+ { deque_base::push_front(x); }
+ using deque_base::insert;
+ iterator insert(const_iterator position, const value_type& x)
+ { return deque_base::insert(position,x); }
+ void insert(const_iterator position, size_type new_size, const value_type& x)
+ { deque_base::insert(position, new_size, x); }
+#elif defined(_GLIBCXX_DEQUE) && EIGEN_GNUC_AT_LEAST(4,2)
+ // workaround GCC std::deque implementation
+ void resize(size_type new_size, const value_type& x)
+ {
+ if (new_size < deque_base::size())
+ deque_base::_M_erase_at_end(this->_M_impl._M_start + new_size);
+ else
+ deque_base::insert(deque_base::end(), new_size - deque_base::size(), x);
+ }
+#else
+ // either GCC 4.1 or non-GCC
+ // default implementation which should always work.
+ void resize(size_type new_size, const value_type& x)
+ {
+ if (new_size < deque_base::size())
+ deque_base::erase(deque_base::begin() + new_size, deque_base::end());
+ else if (new_size > deque_base::size())
+ deque_base::insert(deque_base::end(), new_size - deque_base::size(), x);
+ }
+#endif
+ };
+}
+
+#endif // check whether specialization is actually required
+
+#endif // EIGEN_STDDEQUE_H