lyx_mirror/boost/boost/next_prior.hpp
Lars Gullik Bjønnes e1644a68eb update boost to pre-1.30.0
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6319 a592a061-630c-0410-9148-cb99ea01b6c8
2003-03-03 15:53:48 +00:00

34 lines
1002 B
C++

// Boost next_prior.hpp header file ---------------------------------------//
// (C) Copyright Boost.org 1999-2003. Permission to copy, use, modify, sell
// and distribute this software is granted provided this copyright
// notice appears in all copies. This software is provided "as is" without
// express or implied warranty, and with no claim as to its suitability for
// any purpose.
// See http://www.boost.org/libs/utility for documentation.
#ifndef BOOST_NEXT_PRIOR_HPP_INCLUDED
#define BOOST_NEXT_PRIOR_HPP_INCLUDED
namespace boost {
// Helper functions for classes like bidirectional iterators not supporting
// operator+ and operator-
//
// Usage:
// const std::list<T>::iterator p = get_some_iterator();
// const std::list<T>::iterator prev = boost::prior(p);
// Contributed by Dave Abrahams
template <class T>
inline T next(T x) { return ++x; }
template <class T>
inline T prior(T x) { return --x; }
} // namespace boost
#endif // BOOST_NEXT_PRIOR_HPP_INCLUDED