/src/Geometry_Eigen/Eigen/src/StlSupport/details.h
http://github.com/Akranar/daguerreo · C Header · 99 lines · 57 code · 14 blank · 28 comment · 0 complexity · 4bbbc75465fa9a225c138bfaa0eb312d MD5 · raw file
- // 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_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 size_t size_type;
- typedef 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() {}
- };
- #ifdef _MSC_VER
- // 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