| /* |
| * Copyright Andrey Semashev 2007 - 2015. |
| * 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) |
| */ |
| /*! |
| * \file is_in_range.hpp |
| * \author Andrey Semashev |
| * \date 02.09.2012 |
| * |
| * The header contains implementation of an \c is_in_range predicate in template expressions. |
| */ |
| |
| #ifndef BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_ |
| #define BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_ |
| |
| #include <utility> |
| #include <boost/phoenix/core/actor.hpp> |
| #include <boost/log/detail/config.hpp> |
| #include <boost/log/detail/embedded_string_type.hpp> |
| #include <boost/log/detail/unary_function_terminal.hpp> |
| #include <boost/log/detail/attribute_predicate.hpp> |
| #include <boost/log/expressions/attr_fwd.hpp> |
| #include <boost/log/expressions/keyword_fwd.hpp> |
| #include <boost/log/attributes/attribute_name.hpp> |
| #include <boost/log/attributes/fallback_policy.hpp> |
| #include <boost/log/utility/functional/in_range.hpp> |
| #include <boost/log/detail/header.hpp> |
| |
| #ifdef BOOST_HAS_PRAGMA_ONCE |
| #pragma once |
| #endif |
| |
| namespace boost { |
| |
| BOOST_LOG_OPEN_NAMESPACE |
| |
| namespace expressions { |
| |
| /*! |
| * The predicate checks if the attribute value contains a substring. The attribute value is assumed to be of a string type. |
| */ |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| |
| template< typename T, typename BoundaryT, typename FallbackPolicyT = fallback_to_none > |
| using attribute_is_in_range = aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT >; |
| |
| #else // !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| |
| template< typename T, typename BoundaryT, typename FallbackPolicyT = fallback_to_none > |
| class attribute_is_in_range : |
| public aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT > |
| { |
| typedef aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT > base_type; |
| |
| public: |
| /*! |
| * Initializing constructor |
| * |
| * \param name Attribute name |
| * \param boundaries The expected attribute value boundaries |
| */ |
| attribute_is_in_range(attribute_name const& name, std::pair< BoundaryT, BoundaryT > const& boundaries) : base_type(name, boundaries) |
| { |
| } |
| |
| /*! |
| * Initializing constructor |
| * |
| * \param name Attribute name |
| * \param boundaries The expected attribute value boundaries |
| * \param arg Additional parameter for the fallback policy |
| */ |
| template< typename U > |
| attribute_is_in_range(attribute_name const& name, std::pair< BoundaryT, BoundaryT > const& boundaries, U const& arg) : base_type(name, boundaries, arg) |
| { |
| } |
| }; |
| |
| #endif // !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| |
| /*! |
| * The function generates a terminal node in a template expression. The node will check if the attribute value |
| * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>. |
| */ |
| template< typename T, typename FallbackPolicyT, typename TagT, template< typename > class ActorT, typename BoundaryT > |
| BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_is_in_range< T, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type, FallbackPolicyT > > > |
| is_in_range(attribute_actor< T, FallbackPolicyT, TagT, ActorT > const& attr, BoundaryT const& least, BoundaryT const& most) |
| { |
| typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type; |
| typedef aux::unary_function_terminal< attribute_is_in_range< T, boundary_type, FallbackPolicyT > > terminal_type; |
| ActorT< terminal_type > act = {{ terminal_type(attr.get_name(), std::pair< boundary_type, boundary_type >(least, most), attr.get_fallback_policy()) }}; |
| return act; |
| } |
| |
| /*! |
| * The function generates a terminal node in a template expression. The node will check if the attribute value |
| * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>. |
| */ |
| template< typename DescriptorT, template< typename > class ActorT, typename BoundaryT > |
| BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_is_in_range< typename DescriptorT::value_type, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type > > > |
| is_in_range(attribute_keyword< DescriptorT, ActorT > const&, BoundaryT const& least, BoundaryT const& most) |
| { |
| typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type; |
| typedef aux::unary_function_terminal< attribute_is_in_range< typename DescriptorT::value_type, boundary_type > > terminal_type; |
| ActorT< terminal_type > act = {{ terminal_type(DescriptorT::get_name(), std::pair< boundary_type, boundary_type >(least, most)) }}; |
| return act; |
| } |
| |
| /*! |
| * The function generates a terminal node in a template expression. The node will check if the attribute value |
| * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>. |
| */ |
| template< typename T, typename BoundaryT > |
| BOOST_FORCEINLINE phoenix::actor< aux::unary_function_terminal< attribute_is_in_range< T, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type > > > |
| is_in_range(attribute_name const& name, BoundaryT const& least, BoundaryT const& most) |
| { |
| typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type; |
| typedef aux::unary_function_terminal< attribute_is_in_range< T, boundary_type > > terminal_type; |
| phoenix::actor< terminal_type > act = {{ terminal_type(name, std::pair< boundary_type, boundary_type >(least, most)) }}; |
| return act; |
| } |
| |
| } // namespace expressions |
| |
| BOOST_LOG_CLOSE_NAMESPACE // namespace log |
| |
| } // namespace boost |
| |
| #include <boost/log/detail/footer.hpp> |
| |
| #endif // BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_ |