CGAL::Data_access< Map > Struct Template Reference

#include <CGAL/interpolation_functions.h>

Inherits from

CGAL::cpp98::unary_function< Map::key_type, std::pair< Map::mapped_type, bool > >.

Definition

template<typename Map>
struct CGAL::Data_access< Map >

The struct Data_access implements a functor that allows to retrieve data from an associative container.

The functor keeps a reference to the container. Given an instance of the container's key type, it returns a pair of the container's value type and a Boolean indicating whether the retrieval was successful.

This class can be used to provide the values and gradients of the interpolation functions.

Parameters

The class Data_access has the container type Map as template parameter.

Examples

Interpolation/interpolation_2.cpp, Interpolation/linear_interpolation_2.cpp, Interpolation/linear_interpolation_of_vector_3.cpp, and Interpolation/sibson_interpolation_2.cpp.

Types
typedef Map::mapped_type	Data_type
typedef Map::key_type	Key_type

Creation
	Data_access (const Map &map)
	Introduces a Data_access to the container map.
std::pair< Data_type, bool >	operator() (const Key_type &p)
	If there is an entry for p in the container map, then the pair of map.find(p) and true is returned.

Additional Inherited Members
Public Types inherited from CGAL::cpp98::unary_function< Map::key_type, std::pair< Map::mapped_type, bool > >
typedef ArgumentType	argument_type
typedef ResultType	result_type

Member Function Documentation

operator()()

template<typename Map >

std::pair< Data_type, bool > CGAL::Data_access< Map >::operator()

(

const Key_type &

p

)

If there is an entry for p in the container map, then the pair of map.find(p) and true is returned.

Otherwise, the Boolean value of the pair is false.