TypeInfo Class Reference

#include <Pt/TypeInfo.h>

Extended API for std::type_info. More...

Public Member Functions
	TypeInfo ()
	Construct a void type info.
	TypeInfo (const std::type_info &ti)
	Construct from type info.
bool	before (const TypeInfo &rhs) const
	Determines order of TypeInfo instances.
const std::type_info &	get () const
	Returns the type info.

Related Functions
bool	operator!= (const TypeInfo &lhs, const TypeInfo &rhs)
	Inequal comparison.
bool	operator< (const TypeInfo &lhs, const TypeInfo &rhs)
	Less-than comparison.
bool	operator<= (const TypeInfo &lhs, const TypeInfo &rhs)
	Less-than or equal comparison.
bool	operator== (const TypeInfo &lhs, const TypeInfo &rhs)
	Equal comparison.
bool	operator> (const TypeInfo &lhs, const TypeInfo &rhs)
	Greater-than comparison.
bool	operator>= (const TypeInfo &lhs, const TypeInfo &rhs)
	Greater-than or equal comparison.

Detailed Description

The normal std::type_info class is not copyable, so only raw pointers can be stored in containers such as std::vector. The TypeInfo class addresses this problem, by wrapping std::type_info into a type with value semantics. It also adds comparison operators, like less-than comparison, which allow to use it as the key for assoziative containers:

// OK, TypeInfo is copyable
std::vector<Pt::TypeInfo> typeVector;

// OK, TypeInfo is less-than comparable
std::map<Pt::TypeInfo, std::string> typeMap;