/*-----------------------------------------------------------------------------+
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Copyright (c) 2010-2010: Joachim Faulhaber
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+------------------------------------------------------------------------------+
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENCE.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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+-----------------------------------------------------------------------------*/
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#ifndef BOOST_ICL_PREDICATES_SUB_SUPER_SET_HPP_JOFA_101102
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#define BOOST_ICL_PREDICATES_SUB_SUPER_SET_HPP_JOFA_101102
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#include <boost/icl/type_traits/predicate.hpp>
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#include <boost/icl/type_traits/type_to_string.hpp>
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namespace boost{namespace icl
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{
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/// Functor class template contained_in implements the subset relation.
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template<class Type>
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struct sub_super_set : public relation<Type,Type>
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{
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/// Apply the subset relation.
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/** <tt>contained_in(sub, super)</tt> is true if <tt>sub</tt>
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is contained in <tt>super</tt> */
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bool operator()(const Type& sub, const Type& super)const
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{
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return contains(super, sub);
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}
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};
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template<>
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inline std::string unary_template_to_string<icl::sub_super_set>::apply()
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{ return "C="; }
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/// Functor class template <b>contains</b> implements the superset relation.
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template<class Type>
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struct super_sub_set : public relation<Type,Type>
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{
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/// Apply the superset relation.
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/** <tt>contains(super, sub)</tt> is true if <tt>super</tt> containes
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<tt>sub</tt> */
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bool operator()(const Type& super, const Type& sub)const
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{
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return contains(super, sub);
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}
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};
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template<>
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inline std::string unary_template_to_string<icl::super_sub_set>::apply()
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{ return "D="; }
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}} // namespace icl boost
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#endif
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