boost::expressions::has_attribute< T > Class Template Reference

An attribute value presence checker. More...

#include <has_attr.hpp>

Public Types
typedef bool	result_type
	Function result_type. More...
typedef T	value_type
	Expected attribute value type. More...

Public Member Functions
	has_attribute (attribute_name const &name)
	Initializing constructor. More...
template<typename ArgT >
result_type	operator() (ArgT const &arg) const
	Checking operator. More...

Detailed Description

template<typename T>
class boost::expressions::has_attribute< T >

An attribute value presence checker.

Member Typedef Documentation

template<typename T >

typedef bool boost::expressions::has_attribute< T >::result_type

Function result_type.

template<typename T >

typedef T boost::expressions::has_attribute< T >::value_type

Expected attribute value type.

Constructor & Destructor Documentation

template<typename T >

boost::expressions::has_attribute< T >::has_attribute ( attribute_name const &  name )

inlineexplicit

Initializing constructor.

Parameters

name	Attribute name

Member Function Documentation

template<typename T >

template<typename ArgT >

result_type boost::expressions::has_attribute< T >::operator() ( ArgT const &  arg ) const

inline

Checking operator.

Parameters

arg	A set of attribute values or a log record

Returns

true if the log record contains the sought attribute value, false otherwise

References boost::visitation_result::ok.

Referenced by boost::expressions::has_attribute< void >::operator()().

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The documentation for this class was generated from the following file:

• boost_1_57_0/boost/log/expressions/predicates/has_attr.hpp