CGAL 6.2 - STL Extensions for CGAL

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CGAL::Compact_container_traits< T > Struct Template Reference
Reference Manual » Compact Container

`#include <CGAL/Compact_container.h>`

## Definition

template<typename T>
struct CGAL::Compact_container_traits< T >

The traits class `Compact_container_traits` provides the way to access the internal pointer required for `T` to be used in a `Compact_container<T, Allocator>`.

Note that this pointer needs to be accessible even when the object is not constructed, which means it has to reside in the same memory place as `T`.

You can specialize this class for your own type `T` if the default template is not suitable.

You can also use `Compact_container_base` as base class for your own types `T` to make them usable with the default `Compact_container_traits`.

Parameters

`T` is any type providing the following member functions:

`void * t.for_compact_container() const;`

`void t.for_compact_container(void *);`.

## Operations
static void * | pointer (const T &t)
| Returns the pointer held by `t`.
static void | set_pointer (T &t, void *p)
| Sets the pointer held by `t` to `p`.

## Member Function Documentation

## ◆ pointer()

template<typename T >

static void * CGAL::Compact_container_traits< T >::pointer | ( | const T & | t | ) |
| static

Returns the pointer held by `t`.

The template version defines this function as: `return t.for_compact_container();`

## ◆ set_pointer()

template<typename T >

static void CGAL::Compact_container_traits< T >::set_pointer | ( | T & | t,
|  | void * | p
| ) |  |
| static

Sets the pointer held by `t` to `p`.

The template version defines this function as: `t.for_compact_container(p);`