include/stack

// -*- C++ -*-
//===---------------------------- stack -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_STACK
#define _LIBCPP_STACK

/*
 stack synopsis

namespace std
{

template <class T, class Container = deque<T>>
class stack
{
public:
 typedef Container container_type;
 typedef typename container_type::value_type value_type;
 typedef typename container_type::reference reference;
 typedef typename container_type::const_reference const_reference;
 typedef typename container_type::size_type size_type;

protected:
 container_type c;

public:
 explicit stack();
 explicit stack(const container_type& c);
 explicit stack(container_type&& c);
 stack(stack&& s);
 stack& operator=(stack&& s);
 template <class Alloc> explicit stack(const Alloc& a);
 template <class Alloc> stack(const container_type& c, const Alloc& a);
 template <class Alloc> stack(container_type&& c, const Alloc& a);
 template <class Alloc> stack(stack&& c, const Alloc& a);

 bool empty() const;
 size_type size() const;
 reference top();
 const_reference top() const;

 void push(const value_type& x);
 void push(value_type&& x);
 template <class... Args> void emplace(Args&&... args);
 void pop();

 void swap(stack& c);
};

template <class T, class Container>
 bool operator==(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
 bool operator< (const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
 bool operator!=(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
 bool operator> (const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
 bool operator>=(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
 bool operator<=(const stack<T, Container>& x, const stack<T, Container>& y);

template <class T, class Container>
 void swap(stack<T, Container>& x, stack<T, Container>& y);

} // std

*/

#include <__config>
#include <deque>

#pragma GCC system_header

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _Tp, class _Container> class stack;

template <class _Tp, class _Container>
bool
operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);

template <class _Tp, class _Container>
bool
operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);

template <class _Tp, class _Container = deque<_Tp> >
class _LIBCPP_VISIBLE stack
{
public:
 typedef _Container container_type;
 typedef typename container_type::value_type value_type;
 typedef typename container_type::reference reference;
 typedef typename container_type::const_reference const_reference;
 typedef typename container_type::size_type size_type;

protected:
 container_type c;

public:
 _LIBCPP_INLINE_VISIBILITY
 stack() : c() {}
 _LIBCPP_INLINE_VISIBILITY
 explicit stack(const container_type& __c) : c(__c) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
 _LIBCPP_INLINE_VISIBILITY
 explicit stack(container_type&& __c) : c(_STD::move(__c)) {}
 _LIBCPP_INLINE_VISIBILITY
 stack(stack&& __s) : c(_STD::move(__s.c)) {}
 _LIBCPP_INLINE_VISIBILITY
 stack& operator=(stack&& __s) {c = _STD::move(__s.c); return *this;}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 template <class _Alloc>
 _LIBCPP_INLINE_VISIBILITY
 explicit stack(const _Alloc& __a,
 typename enable_if<uses_allocator<container_type,
 _Alloc>::value>::type* = 0)
 : c(__a) {}
 template <class _Alloc>
 _LIBCPP_INLINE_VISIBILITY
 stack(const container_type& __c, const _Alloc& __a,
 typename enable_if<uses_allocator<container_type,
 _Alloc>::value>::type* = 0)
 : c(__c, __a) {}
 template <class _Alloc>
 _LIBCPP_INLINE_VISIBILITY
 stack(const stack& __s, const _Alloc& __a,
 typename enable_if<uses_allocator<container_type,
 _Alloc>::value>::type* = 0)
 : c(__s.c, __a) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
 template <class _Alloc>
 _LIBCPP_INLINE_VISIBILITY
 stack(container_type&& __c, const _Alloc& __a,
 typename enable_if<uses_allocator<container_type,
 _Alloc>::value>::type* = 0)
 : c(_STD::move(__c), __a) {}
 template <class _Alloc>
 _LIBCPP_INLINE_VISIBILITY
 stack(stack&& __s, const _Alloc& __a,
 typename enable_if<uses_allocator<container_type,
 _Alloc>::value>::type* = 0)
 : c(_STD::move(__s.c), __a) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES

 _LIBCPP_INLINE_VISIBILITY
 bool empty() const {return c.empty();}
 _LIBCPP_INLINE_VISIBILITY
 size_type size() const {return c.size();}
 _LIBCPP_INLINE_VISIBILITY
 reference top() {return c.back();}
 _LIBCPP_INLINE_VISIBILITY
 const_reference top() const {return c.back();}

 _LIBCPP_INLINE_VISIBILITY
 void push(const value_type& __v) {c.push_back(__v);}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
 _LIBCPP_INLINE_VISIBILITY
 void push(value_type&& __v) {c.push_back(_STD::move(__v));}
#ifndef _LIBCPP_HAS_NO_VARIADICS
 template <class... _Args>
 _LIBCPP_INLINE_VISIBILITY
 void emplace(_Args&&... __args)
 {c.emplace_back(_STD::forward<_Args>(__args)...);}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 _LIBCPP_INLINE_VISIBILITY
 void pop() {c.pop_back();}

 _LIBCPP_INLINE_VISIBILITY
 void swap(stack& __s)
 {
 using _STD::swap;
 swap(c, __s.c);
 }

 template <class T1, class _C1>
 friend
 bool
 operator==(const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);

 template <class T1, class _C1>
 friend
 bool
 operator< (const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);
};

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return __x.c == __y.c;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return __x.c < __y.c;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return !(__x == __y);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return __y < __x;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return !(__x < __y);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
 return !(__y < __x);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(stack<_Tp, _Container>& __x, stack<_Tp, _Container>& __y)
{
 __x.swap(__y);
}

template <class _Tp, class _Container, class _Alloc>
struct _LIBCPP_VISIBLE uses_allocator<stack<_Tp, _Container>, _Alloc>
 : public uses_allocator<_Container, _Alloc>
{
};

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP_STACK