value Class Reference

Abstraction of the concept of a generic value. More...

#include <ETL/value>

Classes
struct	contentholder
class	holder

Public Member Functions
	value ()
	value (const value &v)
template<typename T >
	value (const T &v)
value &	swap (value &rhs)
template<typename ValueType >
value &	operator= (const ValueType &rhs)
value &	operator= (const value &rhs)
bool	empty () const
const std::type_info &	type () const

Private Attributes
contentholder *	content

Friends
template<typename ValueType >
ValueType *	value_cast (value *v)

Detailed Description

Abstraction of the concept of a generic value.

Modified from ideas for the boost::any type. Added binary compatibility structure

Definition at line 66 of file _value.h.

Constructor & Destructor Documentation

value::value ( )

inline

Definition at line 78 of file _value.h.

Referenced by operator=().

value::value ( const value &  v )

inline

Definition at line 83 of file _value.h.

template<typename T >

value::value ( const T &  v )

inline

Definition at line 91 of file _value.h.

Member Function Documentation

value& value::swap ( value &  rhs )

inline

Definition at line 99 of file _value.h.

References content.

template<typename ValueType >

value& value::operator= ( const ValueType &  rhs )

inline

Definition at line 106 of file _value.h.

References value().

value& value::operator= ( const value &  rhs )

inline

Definition at line 112 of file _value.h.

References value().

bool value::empty ( ) const

inline

Definition at line 120 of file _value.h.

References content.

const std::type_info& value::type ( ) const

inline

Definition at line 125 of file _value.h.

References content, and value::contentholder::type().

Referenced by value_cast().

Friends And Related Function Documentation

template<typename ValueType >

ValueType* value_cast ( value *  v )

friend

Returns a pointer to the desired value type if the value_type and the internal binary format agree (mediated by using the value_store_type class), otherwise it returns 0.

See Also

value_store_type

Definition at line 200 of file _value.h.

Member Data Documentation

contentholder* value::content

private

Definition at line 75 of file _value.h.

Referenced by empty(), swap(), type(), and value_cast().

---

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

• _value.h