Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/icl/concept/element_set.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/icl/concept/element_set.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,134 @@ +/*-----------------------------------------------------------------------------+ +Copyright (c) 2010-2010: Joachim Faulhaber ++------------------------------------------------------------------------------+ + Distributed under the Boost Software License, Version 1.0. + (See accompanying file LICENCE.txt or copy at + http://www.boost.org/LICENSE_1_0.txt) ++-----------------------------------------------------------------------------*/ +#ifndef BOOST_ICL_CONCEPT_ELEMENT_SET_HPP_JOFA_100921 +#define BOOST_ICL_CONCEPT_ELEMENT_SET_HPP_JOFA_100921 + +#include <boost/icl/type_traits/is_combinable.hpp> +#include <boost/icl/concept/set_value.hpp> +#include <boost/icl/detail/std_set.hpp> +#include <boost/icl/detail/set_algo.hpp> + + +namespace boost{ namespace icl +{ + +//============================================================================== +//= Addition<ElementSet> +//============================================================================== +/** \c add inserts \c operand into the map if it's key does + not exist in the map. + If \c operands's key value exists in the map, it's data + value is added to the data value already found in the map. */ +template <class Type> +typename enable_if<is_element_set<Type>, Type>::type& +add(Type& object, const typename Type::value_type& operand) +{ + object.insert(operand); + return object; +} + +/** \c add add \c operand into the map using \c prior as a hint to + insert \c operand after the position \c prior is pointing to. */ +template <class Type> +typename enable_if<is_element_set<Type>, typename Type::iterator>::type +add(Type& object, typename Type::iterator prior, + const typename Type::value_type& operand) +{ + return object.insert(prior, operand); +} + +//============================================================================== +//= Subtraction +//============================================================================== +/** If the \c operand's key value is in the map, it's data value is + subtraced from the data value stored in the map. */ +template<class Type> +typename enable_if<is_element_set<Type>, Type>::type& +subtract(Type& object, const typename Type::value_type& operand) +{ + object.erase(operand); + return object; +} + + +//============================================================================== +//= Intersection +//============================================================================== +template<class Type> +inline typename enable_if<is_element_set<Type>, bool>::type +intersects(const Type& object, const typename Type::key_type& operand) +{ + return !(object.find(operand) == object.end()); +} + +template<class Type> +inline typename enable_if<is_element_set<Type>, bool>::type +intersects(const Type& object, const Type& operand) +{ + if(iterative_size(object) < iterative_size(operand)) + return Set::intersects(object, operand); + else + return Set::intersects(operand, object); +} + +//============================================================================== +//= Symmetric difference +//============================================================================== +template<class Type> +inline typename enable_if<is_element_set<Type>, Type>::type& +flip(Type& object, const typename Type::value_type& operand) +{ + typedef typename Type::iterator iterator; + std::pair<iterator,bool> insertion = object.insert(operand); + if(!insertion.second) + object.erase(insertion.first); + + return object; +} + +template<class Type> +inline typename enable_if<is_element_set<Type>, Type>::type& +operator ^= (Type& object, const typename Type::element_type& operand) +{ + return icl::flip(object, operand); +} + +/** Symmetric subtract map \c x2 and \c *this. + So \c *this becomes the symmetric difference of \c *this and \c x2 */ +template<class Type> +inline typename enable_if<is_element_set<Type>, Type>::type& +operator ^= (Type& object, const Type& operand) +{ + typedef typename Type::const_iterator const_iterator; + const_iterator it_ = operand.begin(); + while(it_ != operand.end()) + icl::flip(object, *it_++); + + return object; +} + +//============================================================================== +//= Streaming<ElementSet> +//============================================================================== +template<class CharType, class CharTraits, class Type> +inline typename enable_if<is_element_set<Type>, std::basic_ostream<CharType, CharTraits> >::type& +operator << (std::basic_ostream<CharType, CharTraits>& stream, const Type& object) +{ + stream << "{"; + ICL_const_FORALL(typename Type, it, object) + stream << (*it) << " "; + + return stream << "}"; +} + + +}} // namespace boost icl + +#endif + +