CGAL::First_of_pair_property_map< Pair > Struct Template Reference

#include <CGAL/property_map.h>

Definition

Property map that accesses the first item of a std::pair.

Template Parameters

Pair	Instance of std::pair.

Is Model Of:

LvaluePropertyMap

See also

CGAL::Second_of_pair_property_map<Pair>

Examples:

Point_set_processing_3/read_write_xyz_point_set_example.cpp.

Public Types
typedef First_of_pair_property_map< Pair >	Self
typedef Pair	key_type
	typedef to Pair
typedef Pair::first_type	value_type
	typedef to Pair::first_type
typedef boost::lvalue_property_map_tag	category
	boost::lvalue_property_map_tag

Public Member Functions
const value_type &	operator[] (const key_type &pair) const
	Access a property map element. More...

Public Attributes
const typedef value_type &	reference
	typedef to const value_type&

Related Functions
(Note that these are not member functions.)
template<class Pair >
First_of_pair_property_map< Pair >	make_first_of_pair_property_map (Pair)
	Free function to create a First_of_pair_property_map property map.

Put/get free functions
reference	get (const Self &, const key_type &k)
void	put (const Self &, key_type &k, const value_type &v)

Member Function Documentation

operator[]()

template<typename Pair >

const value_type& CGAL::First_of_pair_property_map< Pair >::operator[]

(

const key_type &

pair

)

const

Access a property map element.

Parameters

pair	a key whose first item is accessed