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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>
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-#ifndef EIGEN_STL_DETAILS_H
-#define EIGEN_STL_DETAILS_H
-
-#ifndef EIGEN_ALIGNED_ALLOCATOR
- #define EIGEN_ALIGNED_ALLOCATOR Eigen::aligned_allocator
-#endif
-
-namespace Eigen {
-
- // This one is needed to prevent reimplementing the whole std::vector.
- template <class T>
- class aligned_allocator_indirection : public EIGEN_ALIGNED_ALLOCATOR<T>
- {
- public:
- typedef std::size_t size_type;
- typedef std::ptrdiff_t difference_type;
- typedef T* pointer;
- typedef const T* const_pointer;
- typedef T& reference;
- typedef const T& const_reference;
- typedef T value_type;
-
- template<class U>
- struct rebind
- {
- typedef aligned_allocator_indirection<U> other;
- };
-
- aligned_allocator_indirection() {}
- aligned_allocator_indirection(const aligned_allocator_indirection& ) : EIGEN_ALIGNED_ALLOCATOR<T>() {}
- aligned_allocator_indirection(const EIGEN_ALIGNED_ALLOCATOR<T>& ) {}
- template<class U>
- aligned_allocator_indirection(const aligned_allocator_indirection<U>& ) {}
- template<class U>
- aligned_allocator_indirection(const EIGEN_ALIGNED_ALLOCATOR<U>& ) {}
- ~aligned_allocator_indirection() {}
- };
-
-#if EIGEN_COMP_MSVC
-
- // sometimes, MSVC detects, at compile time, that the argument x
- // in std::vector::resize(size_t s,T x) won't be aligned and generate an error
- // even if this function is never called. Whence this little wrapper.
-#define EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T) \
- typename Eigen::internal::conditional< \
- Eigen::internal::is_arithmetic<T>::value, \
- T, \
- Eigen::internal::workaround_msvc_stl_support<T> \
- >::type
-
- namespace internal {
- template<typename T> struct workaround_msvc_stl_support : public T
- {
- inline workaround_msvc_stl_support() : T() {}
- inline workaround_msvc_stl_support(const T& other) : T(other) {}
- inline operator T& () { return *static_cast<T*>(this); }
- inline operator const T& () const { return *static_cast<const T*>(this); }
- template<typename OtherT>
- inline T& operator=(const OtherT& other)
- { T::operator=(other); return *this; }
- inline workaround_msvc_stl_support& operator=(const workaround_msvc_stl_support& other)
- { T::operator=(other); return *this; }
- };
- }
-
-#else
-
-#define EIGEN_WORKAROUND_MSVC_STL_SUPPORT(T) T
-
-#endif
-
-}
-
-#endif // EIGEN_STL_DETAILS_H