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| author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
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| committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
| commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
| tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/last_value.hpp | |
| download | swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 | |
Import.
Diffstat (limited to '3rdParty/Boost/boost/last_value.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/last_value.hpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/last_value.hpp b/3rdParty/Boost/boost/last_value.hpp new file mode 100644 index 0000000..183a739 --- /dev/null +++ b/3rdParty/Boost/boost/last_value.hpp @@ -0,0 +1,54 @@ +// last_value function object (documented as part of Boost.Signals) + +// Copyright Douglas Gregor 2001-2003. Use, modification and +// distribution is subject to 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) + +// For more information, see http://www.boost.org/libs/signals + +#ifndef BOOST_LAST_VALUE_HPP +#define BOOST_LAST_VALUE_HPP + +#include <cassert> +#include <boost/config.hpp> + +namespace boost { + template<typename T> + struct last_value { + typedef T result_type; + + template<typename InputIterator> + T operator()(InputIterator first, InputIterator last) const + { + assert(first != last); + T value = *first++; + while (first != last) + value = *first++; + return value; + } + }; + + template<> + struct last_value<void> { +#ifdef BOOST_NO_VOID_RETURNS + struct unusable {}; + + public: + typedef unusable result_type; +#else + public: + typedef void result_type; +#endif // BOOST_NO_VOID_RETURNS + + template<typename InputIterator> + result_type + operator()(InputIterator first, InputIterator last) const + { + while (first != last) + *first++; + return result_type(); + } + }; +} +#endif // BOOST_SIGNALS_LAST_VALUE_HPP |