value Class Reference

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

#include <ETL/value>

List of all members.

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)
Classes
struct	contentholder
class	holder

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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 65 of file _value.h.

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Constructor & Destructor Documentation

value::value (   )  [inline]

Definition at line 77 of file _value.h. Referenced by operator=().

value::value (  const value &  v  )  [inline]

Definition at line 82 of file _value.h.

template<typename T> value::value (  const T &  v  )  [inline]

Definition at line 90 of file _value.h.

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Member Function Documentation

value& value::swap (  value &  rhs  )  [inline]

Definition at line 98 of file _value.h. References content.

template<typename ValueType> value& value::operator= (  const ValueType &  rhs  )  [inline]

Definition at line 105 of file _value.h. References value().

value& value::operator= (  const value &  rhs  )  [inline]

Definition at line 111 of file _value.h. References value().

bool value::empty (   )  const [inline]

Definition at line 119 of file _value.h. References content.

const std::type_info& value::type (   )  const [inline]

Definition at line 124 of file _value.h. References content, and value::contentholder::type(). Referenced by value_cast().

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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 199 of file _value.h.

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Member Data Documentation

contentholder* value::content [private]

Definition at line 74 of file _value.h. Referenced by empty(), swap(), type(), and value_cast().

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

• _value.h

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