CGAL 6.0.1 - CGAL and Boost Property Maps
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CGAL::First_of_pair_property_map< Pair > Struct Template Reference

#include <CGAL/property_map.h>

Definition

template<typename Pair>
struct CGAL::First_of_pair_property_map< Pair >

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

Template Parameters
PairInstance 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 const value_typereference
 typedef to const value_type&
 
typedef boost::lvalue_property_map_tag category
 boost::lvalue_property_map_tag
 

Public Member Functions

const value_typeoperator[] (const key_type &pair) const
 Access a property map element.
 

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
paira key whose first item is accessed