mi::neuraylib::Tag Class Reference

A tag represents a unique identifier for database elements in the database. More...

#include <iserializer.h>

Inheritance diagram for mi::neuraylib::Tag:

Public Types
typedef bool(Tag::*	bool_conversion_support) () const
	Helper typedef. More...

Public Member Functions
	Tag ()
	Constructor. More...
	Tag (Tag_struct tag_struct)
	Constructor from the underlying storage type. More...
bool	is_valid () const
	Returns true if the tag is valid, i.e., is not equal to NULL_TAG. More...
	operator bool_conversion_support () const
	Helper function for the conversion of a Tag to a bool. More...

Additional Inherited Members
Public Attributes inherited from mi::neuraylib::Tag_struct
Uint32	id
	The actual ID of the tag. More...

Detailed Description

A tag represents a unique identifier for database elements in the database.

See also

the underlying POD type mi::neuraylib::Tag_struct.

Member Typedef Documentation

bool_conversion_support

typedef bool(Tag::* mi::neuraylib::Tag::bool_conversion_support) () const

Helper typedef.

This typedef represents the type of NULL_TAG.">is_valid() used by the bool_conversion_support() operator.

Constructor & Destructor Documentation

Tag() [1/2]

mi::neuraylib::Tag::Tag ( )

inline

Constructor.

Sets the ID initially to 0, i.e., creates an invalid tag.

Tag() [2/2]

mi::neuraylib::Tag::Tag ( Tag_struct  tag_struct )

inline

Constructor from the underlying storage type.

Member Function Documentation

is_valid()

bool mi::neuraylib::Tag::is_valid ( ) const

inline

Returns true if the tag is valid, i.e., is not equal to NULL_TAG.

operator bool_conversion_support()

mi::neuraylib::Tag::operator bool_conversion_support ( ) const

inline

Helper function for the conversion of a Tag to a bool.

This helper function allows to write

Tag t (...);
if (t) ...

instead of

Tag t (...);
if (t.is_valid()) ...