boost::type_info_wrapper Class Reference

A simple std::type_info wrapper that implements value semantic for type information objects. More...

#include <type_info_wrapper.hpp>

Public Member Functions
	type_info_wrapper () BOOST_NOEXCEPT
	Default constructor. More...
	type_info_wrapper (type_info_wrapper const &that) BOOST_NOEXCEPT
	Copy constructor. More...
	type_info_wrapper (std::type_info const &that) BOOST_NOEXCEPT
	Conversion constructor. More...
std::type_info const &	get () const BOOST_NOEXCEPT
	Stored type info getter. More...
void	swap (type_info_wrapper &that) BOOST_NOEXCEPT
	Swaps two instances of the wrapper. More...
std::string	pretty_name () const
	The method returns the contained type name string in a possibly more readable format than get().name() More...
bool	operator! () const BOOST_NOEXCEPT
bool	operator== (type_info_wrapper const &that) const BOOST_NOEXCEPT
	Equality comparison. More...
bool	operator< (type_info_wrapper const &that) const BOOST_NOEXCEPT
	Ordering operator. More...

Detailed Description

A simple std::type_info wrapper that implements value semantic for type information objects.

The type info wrapper is very useful for storing type information objects in containers, as a key or value. It also provides a number of useful features, such as default construction and assignment support, an empty state and extended support for human-friendly type names.

Constructor & Destructor Documentation

boost::type_info_wrapper::type_info_wrapper ( )

inline

Default constructor.

Postcondition

!*this == true

boost::type_info_wrapper::type_info_wrapper ( type_info_wrapper const &  that )

inline

Copy constructor.

Postcondition

*this == that

Parameters

that	Source type info wrapper to copy from

boost::type_info_wrapper::type_info_wrapper ( std::type_info const &  that )

inline

Conversion constructor.

Postcondition

*this == that && !!*this

Parameters

that	Type info object to be wrapped

Member Function Documentation

std::type_info const& boost::type_info_wrapper::get ( ) const

inline

Stored type info getter.

Returns

true if the type info wrapper was initialized with a particular type, false if the wrapper was default-constructed and not yet initialized

Precondition

!!*this

Returns

Constant reference to the wrapped type info object

bool boost::type_info_wrapper::operator! ( ) const

inline

Returns

false if the type info wrapper was initialized with a particular type, true if the wrapper was default-constructed and not yet initialized

bool boost::type_info_wrapper::operator< ( type_info_wrapper const &  that ) const

inline

Ordering operator.

Precondition

!!*this && !!that

Parameters

that

Comparand

Returns

true if this object wraps type info object that is ordered before the type info object in the comparand, false otherwise

Note

The results of this operator are only consistent within a single run of application. The result may change for the same types after rebuilding or even restarting the application.

bool boost::type_info_wrapper::operator== ( type_info_wrapper const &  that ) const

inline

Equality comparison.

Parameters

that

Comparand

Returns

If either this object or comparand is in empty state and the other is not, the result is false. If both arguments are empty, the result is true. If both arguments are not empty, the result is true if this object wraps the same type as the comparand and false otherwise.

std::string boost::type_info_wrapper::pretty_name ( ) const

inline

The method returns the contained type name string in a possibly more readable format than get().name()

Precondition

!!*this

Returns

Type name string

References boost::core::demangle().

Referenced by boost::to_string().

void boost::type_info_wrapper::swap ( type_info_wrapper &  that )

inline

Swaps two instances of the wrapper.

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

• boost_1_57_0/boost/log/utility/type_info_wrapper.hpp