williamr@2: /*
williamr@2:  *
williamr@2:  * Copyright (c) 1994
williamr@2:  * Hewlett-Packard Company
williamr@2:  *
williamr@2:  * Copyright (c) 1996,1997
williamr@2:  * Silicon Graphics Computer Systems, Inc.
williamr@2:  *
williamr@2:  * Copyright (c) 1997
williamr@2:  * Moscow Center for SPARC Technology
williamr@2:  *
williamr@2:  * Copyright (c) 1999 
williamr@2:  * Boris Fomitchev
williamr@2:  *
williamr@2:  * This material is provided "as is", with absolutely no warranty expressed
williamr@2:  * or implied. Any use is at your own risk.
williamr@2:  *
williamr@2:  * Permission to use or copy this software for any purpose is hereby granted 
williamr@2:  * without fee, provided the above notices are retained on all copies.
williamr@2:  * Permission to modify the code and to distribute modified code is granted,
williamr@2:  * provided the above notices are retained, and a notice that the code was
williamr@2:  * modified is included with the above copyright notice.
williamr@2:  *
williamr@2:  */
williamr@2: 
williamr@2: /* NOTE: This is an internal header file, included by other STL headers.
williamr@2:  *   You should not attempt to use it directly.
williamr@2:  */
williamr@2: 
williamr@2: #ifndef _STLP_INTERNAL_STACK_H
williamr@2: #define _STLP_INTERNAL_STACK_H
williamr@2: 
williamr@2: #ifndef _STLP_INTERNAL_DEQUE_H
williamr@2: # include <stl/_deque.h>
williamr@2: #endif
williamr@2: 
williamr@2: _STLP_BEGIN_NAMESPACE
williamr@2: 
williamr@2: # if !defined ( _STLP_LIMITED_DEFAULT_TEMPLATES )
williamr@2: template <class _Tp, class _Sequence = deque<_Tp> >
williamr@2: # elif defined ( _STLP_MINIMUM_DEFAULT_TEMPLATE_PARAMS )
williamr@2: # define _STLP_STACK_ARGS _Tp
williamr@2: template <class _Tp>
williamr@2: # else
williamr@2: template <class _Tp, class _Sequence>
williamr@2: # endif
williamr@2: class stack {
williamr@2: 
williamr@2: # ifdef _STLP_STACK_ARGS 
williamr@2:   typedef deque<_Tp> _Sequence;
williamr@2: # endif
williamr@2: 
williamr@2: public:
williamr@2:   typedef typename _Sequence::value_type      value_type;
williamr@2:   typedef typename _Sequence::size_type       size_type;
williamr@2:   typedef          _Sequence                  container_type;
williamr@2: 
williamr@2:   typedef typename _Sequence::reference       reference;
williamr@2:   typedef typename _Sequence::const_reference const_reference;
williamr@2: protected:
williamr@2:   _Sequence c;
williamr@2: public:
williamr@2:   stack() : c() {}
williamr@2:   explicit stack(const _Sequence& __s) : c(__s) {}
williamr@2: 
williamr@2:   bool empty() const { return c.empty(); }
williamr@2:   size_type size() const { return c.size(); }
williamr@2:   reference top() { return c.back(); }
williamr@2:   const_reference top() const { return c.back(); }
williamr@2:   void push(const value_type& __x) { c.push_back(__x); }
williamr@2:   void pop() { c.pop_back(); }
williamr@2:   const _Sequence& _Get_c() const { return c; }
williamr@2: };
williamr@2: 
williamr@2: # ifndef _STLP_STACK_ARGS
williamr@2: #  define _STLP_STACK_ARGS _Tp, _Sequence
williamr@2: #  define _STLP_STACK_HEADER_ARGS class _Tp, class _Sequence
williamr@2: # else
williamr@2: #  define _STLP_STACK_HEADER_ARGS class _Tp
williamr@2: # endif
williamr@2: 
williamr@2: template < _STLP_STACK_HEADER_ARGS >
williamr@2: inline bool _STLP_CALL  operator==(const stack< _STLP_STACK_ARGS >& __x, const stack< _STLP_STACK_ARGS >& __y)
williamr@2: {
williamr@2:   return __x._Get_c() == __y._Get_c();
williamr@2: }
williamr@2: 
williamr@2: template < _STLP_STACK_HEADER_ARGS >
williamr@2: inline bool _STLP_CALL  operator<(const stack< _STLP_STACK_ARGS >& __x, const stack< _STLP_STACK_ARGS >& __y)
williamr@2: {
williamr@2:   return __x._Get_c() < __y._Get_c();
williamr@2: }
williamr@2: 
williamr@2: _STLP_RELOPS_OPERATORS(template < _STLP_STACK_HEADER_ARGS >, stack< _STLP_STACK_ARGS >)
williamr@2:     
williamr@2: _STLP_END_NAMESPACE
williamr@2: 
williamr@2: #  undef _STLP_STACK_ARGS
williamr@2: #  undef _STLP_STACK_HEADER_ARGS
williamr@2: 
williamr@2: #endif /* _STLP_INTERNAL_STACK_H */
williamr@2: 
williamr@2: // Local Variables:
williamr@2: // mode:C++
williamr@2: // End: