/** -*- C++ -*-
 **
 **  KAI C++ Compiler
 **
 **  Copyright (C) 1996-2001 Intel Corp. All rights reserved.
 **/
#ifndef __KAI_ALLOCATOR
#define __KAI_ALLOCATOR

#include <new>

namespace __kai {

template<class A> struct allocator_base_helper: public A {
    char x;
};

template<class A,size_t S=sizeof(allocator_base_helper<A>)> struct allocator_base {
public:
    A get_allocator() const {return my_allocator;}
    typename A::size_type max_size() const { return my_allocator.max_size();}
protected:
    allocator_base( const A& a ) : my_allocator(a) {}
    template<class B> B _get_rebound_allocator() const {return B(my_allocator);}
    A _get_allocator() const {return my_allocator;}
private:
    A my_allocator;
};

template<class A> struct allocator_base<A,1> {	// partial specialization for empty allocators
public:
    A get_allocator() const {return A();}
    typename A::size_type max_size() const { return A().max_size();}
protected:
    allocator_base( const A& ) {} 
    template<class B> B _get_rebound_allocator() const {return B();}
    static A _get_allocator() {return A();}
};

} // namespace kai

#endif /* __KAI_ALLOCATOR */