Boost C++ Libraries

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Struct template pointer_plus_bit<T *>

boost::intrusive::pointer_plus_bit<T *>

Synopsis

template<typename T> 
struct pointer_plus_bit<T *> {
  // types
  typedef T * pointer;

  // public static functions
  static pointer get_pointer(pointer) ;
  static void set_pointer(pointer &, pointer) ;
  static bool get_bit(pointer) ;
  static void set_bit(pointer &, bool) ;
};

Description

This is the specialization to embed an extra bit of information in a raw pointer. The extra bit is stored in the lower bit of the pointer.

`pointer_plus_bit` public static functions

```
static pointer get_pointer(pointer n) ;
```

static void set_pointer(pointer & n, pointer p) ;

```
static bool get_bit(pointer n) ;
```

static void set_bit(pointer & n, bool c) ;