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Diffstat (limited to 'extern/Eigen3/Eigen/src/StlSupport/details.h')
-rw-r--r-- | extern/Eigen3/Eigen/src/StlSupport/details.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/extern/Eigen3/Eigen/src/StlSupport/details.h b/extern/Eigen3/Eigen/src/StlSupport/details.h new file mode 100644 index 00000000000..397c8ef8581 --- /dev/null +++ b/extern/Eigen3/Eigen/src/StlSupport/details.h @@ -0,0 +1,99 @@ +// 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 |