You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.7 KiB
84 lines
2.7 KiB
// 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
|
|
|