GitHub-Proxy/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2025-08-12 03:39:01 +08:00
Code Issues Packages Projects Releases Wiki Activity

Simpler and hopefully more future-proof fix for bug #503 (aligned_allocator with c++11)

Browse Source
This commit is contained in:
Gael Guennebaud 2014-03-19 13:28:50 +01:00
parent 3e42b775ea
commit 2a564695f0
1 changed files with 27 additions and 83 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
Eigen/src/Core/util/Memory.h
View File

@ -700,98 +700,42 @@ template<typename T> class aligned_stack_memory_handler
* \sa \ref TopicStlContainers. * \sa \ref TopicStlContainers.
*/ */
template<class T> template<class T>
class aligned_allocator class aligned_allocator : public std::allocator<T>
{ {
public: public:
typedef size_t size_type; typedef size_t size_type;
typedef std::ptrdiff_t difference_type; typedef std::ptrdiff_t difference_type;
typedef T* pointer; typedef T* pointer;
typedef const T* const_pointer; typedef const T* const_pointer;
typedef T& reference; typedef T& reference;
typedef const T& const_reference; typedef const T& const_reference;
typedef T value_type; typedef T value_type;
template<class U> template<class U>
struct rebind struct rebind
{ {
typedef aligned_allocator<U> other; typedef aligned_allocator<U> other;
}; };
pointer address( reference value ) const aligned_allocator() : std::allocator<T>() {}
{
return &value;
}
const_pointer address( const_reference value ) const aligned_allocator(const aligned_allocator& other) : std::allocator<T>(other) {}
{
return &value;
}
aligned_allocator() template<class U>
{ aligned_allocator(const aligned_allocator<U>& other) : std::allocator<T>(other) {}
}
aligned_allocator( const aligned_allocator& ) ~aligned_allocator() {}
{
}
template<class U> pointer allocate(size_type num, const void* /*hint*/ = 0)
aligned_allocator( const aligned_allocator<U>& ) {
{ internal::check_size_for_overflow<T>(num);
} return static_cast<pointer>( internal::aligned_malloc(num * sizeof(T)) );
}
~aligned_allocator() void deallocate(pointer p, size_type /*num*/)
{ {
} internal::aligned_free(p);
}
size_type max_size() const
{
return (std::numeric_limits<size_type>::max)();
}
pointer allocate( size_type num, const void* hint = 0 )
{
EIGEN_UNUSED_VARIABLE(hint);
internal::check_size_for_overflow<T>(num);
return static_cast<pointer>( internal::aligned_malloc( num * sizeof(T) ) );
}
void construct( pointer p, const T& value )
{
::new( p ) T( value );
}
#if (__cplusplus >= 201103L)
template <typename U, typename... Args>
void construct( U* u, Args&&... args)
{
::new( static_cast<void*>(u) ) U( std::forward<Args>( args )... );
}
#endif
void destroy( pointer p )
{
p->~T();
}
#if (__cplusplus >= 201103L)
template <typename U>
void destroy( U* u )
{
u->~U();
}
#endif
void deallocate( pointer p, size_type /*num*/ )
{
internal::aligned_free( p );
}
bool operator!=(const aligned_allocator<T>& ) const
{ return false; }
bool operator==(const aligned_allocator<T>& ) const
{ return true; }
}; };
//---------- Cache sizes ---------- //---------- Cache sizes ----------