lass_allocator.h

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/** @file
 *  @author Bram de Greve (bram@cocamware.com)
 *  @author Tom De Muer (tom@cocamware.com)
 *
 *  *** BEGIN LICENSE INFORMATION ***
 *  
 *  The contents of this file are subject to the Common Public Attribution License 
 *  Version 1.0 (the "License"); you may not use this file except in compliance with 
 *  the License. You may obtain a copy of the License at 
 *  http://lass.sourceforge.net/cpal-license. The License is based on the 
 *  Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover 
 *  use of software over a computer network and provide for limited attribution for 
 *  the Original Developer. In addition, Exhibit A has been modified to be consistent 
 *  with Exhibit B.
 *  
 *  Software distributed under the License is distributed on an "AS IS" basis, WITHOUT 
 *  WARRANTY OF ANY KIND, either express or implied. See the License for the specific 
 *  language governing rights and limitations under the License.
 *  
 *  The Original Code is LASS - Library of Assembled Shared Sources.
 *  
 *  The Initial Developer of the Original Code is Bram de Greve and Tom De Muer.
 *  The Original Developer is the Initial Developer.
 *  
 *  All portions of the code written by the Initial Developer are:
 *  Copyright (C) 2004-2011 the Initial Developer.
 *  All Rights Reserved.
 *  
 *  Contributor(s):
 *
 *  Alternatively, the contents of this file may be used under the terms of the 
 *  GNU General Public License Version 2 or later (the GPL), in which case the 
 *  provisions of GPL are applicable instead of those above.  If you wish to allow use
 *  of your version of this file only under the terms of the GPL and not to allow 
 *  others to use your version of this file under the CPAL, indicate your decision by 
 *  deleting the provisions above and replace them with the notice and other 
 *  provisions required by the GPL License. If you do not delete the provisions above,
 *  a recipient may use your version of this file under either the CPAL or the GPL.
 *  
 *  *** END LICENSE INFORMATION ***
 */
 
/** @class lass::stde::lass_allocator
 *  @brief an adaptor to use an lass::util Allocator as a replacement for std::allocator
 *  @author Bram de Greve [Bramz]
 */
 
#ifndef LASS_GUARDIAN_OF_INCLUSION_STDE_LASS_ALLOCATOR_H
#define LASS_GUARDIAN_OF_INCLUSION_STDE_LASS_ALLOCATOR_H
 
#include "stde_common.h"
 
#include <cstddef>
 
namespace lass
{
namespace stde
{
 
template <typename T, typename VariableAllocator> class lass_allocator;
 
template <typename VariableAllocator>
class lass_allocator<void, VariableAllocator>
{
public:
    typedef void* pointer;
    typedef const void* const_pointer;
    typedef void value_type;
    template <typename U> struct rebind { typedef lass_allocator<U, VariableAllocator> other; };
};
 
template <typename T, typename VariableAllocator>
class lass_allocator: public VariableAllocator
{
public:
    typedef 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 <typename U> struct rebind { typedef lass_allocator<U, VariableAllocator> other; };
 
    lass_allocator() noexcept;
    lass_allocator(const lass_allocator&) noexcept;
    template <typename U> lass_allocator(const lass_allocator<U, VariableAllocator>&) noexcept;
    ~lass_allocator() noexcept;
 
    pointer address(reference x) const;
    const_pointer address(const_reference x) const;
 
    pointer allocate(size_type n, typename lass_allocator<void, VariableAllocator>::pointer hint = 0);
    void deallocate(pointer p, size_type n);
    size_type max_size() const noexcept;
 
    void construct(pointer p, const T& val);
    void destroy(pointer p);
};
 
template <typename T1, typename T2, typename VariableAllocator>
bool operator==(const lass_allocator<T1, VariableAllocator>&, const lass_allocator<T2, VariableAllocator>&);
 
template <typename T1, typename T2, typename VariableAllocator>
bool operator!=(const lass_allocator<T1, VariableAllocator>&, const lass_allocator<T2, VariableAllocator>&);
 
}
 
}
 
#include "lass_allocator.inl"
 
#endif
 
// EOF