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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch) | |
tree | 67208f7c145782a7e90b123b982ca78d88cc2c87 /indexlib/boost-compat/next_prior.hpp | |
download | tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'indexlib/boost-compat/next_prior.hpp')
-rw-r--r-- | indexlib/boost-compat/next_prior.hpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/indexlib/boost-compat/next_prior.hpp b/indexlib/boost-compat/next_prior.hpp new file mode 100644 index 000000000..e1d2e4289 --- /dev/null +++ b/indexlib/boost-compat/next_prior.hpp @@ -0,0 +1,51 @@ +// Boost next_prior.hpp header file ---------------------------------------// + +// (C) Copyright Dave Abrahams and Daniel Walker 1999-2003. Distributed under the Boost +// Software License, Version 1.0. (See accompanying file +// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See http://www.boost.org/libs/utility for documentation. + +// Revision History +// 13 Dec 2003 Added next(x, n) and prior(x, n) (Daniel Walker) + +#ifndef BOOST_NEXT_PRIOR_HPP_INCLUDED +#define BOOST_NEXT_PRIOR_HPP_INCLUDED + +#include <iterator> + +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); +// const std::list<T>::iterator next = boost::next(prev, 2); + +// Contributed by Dave Abrahams + +template <class T> +inline T next(T x) { return ++x; } + +template <class T, class Distance> +inline T next(T x, Distance n) +{ + std::advance(x, n); + return x; +} + +template <class T> +inline T prior(T x) { return --x; } + +template <class T, class Distance> +inline T prior(T x, Distance n) +{ + std::advance(x, -n); + return x; +} + +} // namespace boost + +#endif // BOOST_NEXT_PRIOR_HPP_INCLUDED |