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

An attribute value presence checker. More...

#include <has_attr.hpp>

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

Public Member Functions
	has_attribute (attribute_name const &name)
	Initializing constructor. More...
result_type	operator() (attribute_value_set const &attrs) const
	Checking operator. More...
result_type	operator() (boost::log::record_view const &rec) const
	Checking operator. More...

Detailed Description

template<>
class boost::expressions::has_attribute< void >

An attribute value presence checker.

This specialization does not check the type of the attribute value.

Member Typedef Documentation

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

Function result_type.

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

Expected attribute value type.

Constructor & Destructor Documentation

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

inlineexplicit

Initializing constructor.

Parameters

name	Attribute name

Member Function Documentation

result_type boost::expressions::has_attribute< void >::operator() ( attribute_value_set const &  attrs ) const

inline

Checking operator.

Parameters

attrs

A set of attribute values

Returns

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

References boost::attribute_value_set::end(), and boost::attribute_value_set::find().

result_type boost::expressions::has_attribute< void >::operator() ( boost::log::record_view const &  rec ) const

inline

Checking operator.

Parameters

rec	A log record

Returns

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

References boost::expressions::has_attribute< T >::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