#include "vtkCommonCoreModule.h"
#include "vtkObject.h"
#include "vtkVariant.h"

Include dependency graph for vtkAbstractArray.h:

This graph shows which files directly or indirectly include this file:

Classes
class	vtkAbstractArray
	Abstract superclass for all arrays. More...

struct	vtkArrayDownCast_impl< ArrayT >
	Implementation of vtkArrayDownCast. More...

Macros

#define	vtkArrayDownCast_FastCastMacro(ArrayT)
	This macro is used to tell vtkArrayDownCast to use FastDownCast instead of SafeDownCast. More...


#define	vtkArrayDownCast_TemplateFastCastMacro(ArrayT)
	Same as vtkArrayDownCast_FastCastMacro, but treats ArrayT as a single-parameter template (the parameter is the value type). More...

Functions
template<typename ArrayT >
ArrayT *	vtkArrayDownCast (vtkAbstractArray *array)
	vtkArrayDownCast is to be used by generic (e.g. More...

Macro Definition Documentation

#define vtkArrayDownCast_FastCastMacro ( ArrayT )

Value:

template <> struct vtkArrayDownCast_impl<ArrayT> \
  { \
    inline ArrayT* operator()(vtkAbstractArray *array) \
    { \
      return ArrayT::FastDownCast(array); \
    } \
  };

This macro is used to tell vtkArrayDownCast to use FastDownCast instead of SafeDownCast.

Definition at line 754 of file vtkAbstractArray.h.

#define vtkArrayDownCast_TemplateFastCastMacro ( ArrayT )

Value:

template <typename ValueT> struct vtkArrayDownCast_impl<ArrayT<ValueT> > \
  { \
    inline ArrayT<ValueT>* operator()(vtkAbstractArray *array) \
    { \
      return ArrayT<ValueT>::FastDownCast(array); \
    } \
  };

Same as vtkArrayDownCast_FastCastMacro, but treats ArrayT as a single-parameter template (the parameter is the value type).

Defines a vtkArrayDownCast implementation that uses the specified array template class with any value type.

Definition at line 771 of file vtkAbstractArray.h.

Function Documentation

template<typename ArrayT >

ArrayT* vtkArrayDownCast ( vtkAbstractArray * array )

vtkArrayDownCast is to be used by generic (e.g.

templated) code for quickly downcasting vtkAbstractArray pointers to more derived classes. The typical VTK downcast pattern (SafeDownCast) performs a string comparison on the class names in the object's inheritance hierarchy, which is quite expensive and can dominate computational resource usage when downcasting is needed in a worker function. To address this, certain arrays support a FastDownCast method, which replaces the chain of string comparisons with 1-2 integer comparisons and thus is significantly more efficient. However, not all arrays support the FastDownCast mechanism. vtkArrayDownCast exists to select between the two; Arrays that support FastDownCast will use it, while others will fallback to the slower SafeDownCast.

A more detailed description of this class and related tools can be found here.

Definition at line 742 of file vtkAbstractArray.h.

Classes

Macros

Functions

Macro Definition Documentation

Function Documentation