---
name: "__gnu_debug::_Safe_local_iterator"
section: "3cxx"
platform: "linux"
package: "libstdc++-12-doc"
version: "12.4.0-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/__gnu_debug::_Safe_local_iterator/3cxx"
---

# \_\_gnu\_debug::\_Safe\_local\_iterator(3cxx)

Safe iterator wrapper.

## NAME

\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \> - Safe iterator wrapper.

## SYNOPSIS

`#include <safe_local_iterator.h>`

Inherits \_Iterator, and **\_\_gnu\_debug::\_Safe\_local\_iterator\_base**.

### Public Types

typedef \_Traits::difference\_type **difference\_type**\
 typedef \_Traits::iterator\_category **iterator\_category**\
 typedef \_Iterator **iterator\_type**\
 typedef \_Traits::pointer **pointer**\
 typedef \_Traits::reference **reference**\
 typedef \_Traits::value\_type **value\_type**\

### Public Member Functions

**\_Safe\_local\_iterator** () noexcept\
 **\_Safe\_local\_iterator** (\_Iterator \_\_i, const **\_Safe\_sequence\_base** \*\_\_cont)\
 Safe iterator construction from an unsafe iterator and its sequence.  **\_Safe\_local\_iterator** (**\_Safe\_local\_iterator** &&\_\_x) noexcept\
 Move construction.  **\_Safe\_local\_iterator** (const **\_Safe\_local\_iterator** &\_\_x) noexcept\
 Copy construction.  template\<typename \_MutableIterator \> **\_Safe\_local\_iterator** (const **\_Safe\_local\_iterator**\< \_MutableIterator, typename \_\_gnu\_cxx::\_\_enable\_if\< \_IsConstant::\_\_value &&std::\_\_are\_same\< \_MutableIterator, \_OtherIterator \>::\_\_value, \_Sequence \>::\_\_type \> &\_\_x) noexcept\
 Converting constructor from a mutable iterator to a constant iterator.  void **\_M\_attach** (**\_Safe\_sequence\_base** \*\_\_seq)\
 void **\_M\_attach\_single** (**\_Safe\_sequence\_base** \*\_\_seq)\
 bool **\_M\_attached\_to** (const **\_Safe\_sequence\_base** \*\_\_seq) const\
 bool **\_M\_can\_compare** (const **\_Safe\_iterator\_base** &\_\_x) const  throw ()\
 bool **\_M\_dereferenceable** () const\
 Is the iterator dereferenceable?  \_Distance\_traits\< \_Iterator \>::\_\_type **\_M\_get\_distance\_to** (const **\_Safe\_local\_iterator** &\_\_rhs) const\
 \_\_gnu\_cxx::\_\_conditional\_type\< \_IsConstant::\_\_value, const\_Sequence \*, \_Sequence \* \>::\_\_type **\_M\_get\_sequence** () const\
 template\<typename \_Other \> bool **\_M\_in\_same\_bucket** (const **\_Safe\_local\_iterator**\< \_Other, \_Sequence \> &\_\_other) const\
 Is this iterator part of the same bucket as the other one?  bool **\_M\_incrementable** () const\
 Is the iterator incrementable?  void **\_M\_invalidate** ()\
 bool **\_M\_is\_begin** () const\
 Is this iterator equal to the sequence's begin(bucket) iterator?  bool **\_M\_is\_end** () const\
 Is this iterator equal to the sequence's end(bucket) iterator?  void **\_M\_reset** ()  throw ()\
 bool **\_M\_singular** () const  throw ()\
 void **\_M\_unlink** ()  throw ()\
 bool **\_M\_valid\_range** (const **\_Safe\_local\_iterator** &\_\_rhs, **std::pair**\< difference\_type, **\_Distance\_precision** \> &\_\_dist\_info) const\
 const \_Iterator & **base** () const noexcept\
 \_Iterator & **base** () noexcept\
 Return the underlying iterator.  size\_type **bucket** () const\
 Return the bucket.  **operator \_Iterator** () const\
 Conversion to underlying non-debug iterator to allow better interaction with non-debug containers.  reference **operator\*** () const\
 Iterator dereference.  **\_Safe\_local\_iterator** & **operator++** ()\
 Iterator preincrement.  **\_Safe\_local\_iterator** **operator++** (int)\
 Iterator postincrement.  pointer **operator-\>** () const\
 Iterator dereference.  **\_Safe\_local\_iterator** & **operator=** (**\_Safe\_local\_iterator** &&\_\_x) noexcept\
 Move assignment.  **\_Safe\_local\_iterator** & **operator=** (const **\_Safe\_local\_iterator** &\_\_x)\
 Copy assignment.

### Static Public Member Functions

static constexpr bool **\_S\_constant** ()\
 Determine if this is a constant iterator.

### Public Attributes

**\_Safe\_iterator\_base** \* **\_M\_next**\
 **\_Safe\_iterator\_base** \* **\_M\_prior**\
 **\_Safe\_sequence\_base** \* **\_M\_sequence**\
 unsigned int **\_M\_version**\

### Protected Member Functions

void **\_M\_attach** (**\_Safe\_sequence\_base** \*\_\_seq, bool \_\_constant)\
 void **\_M\_attach\_single** (**\_Safe\_sequence\_base** \*\_\_seq, bool \_\_constant)  throw ()\
 void **\_M\_detach** ()\
 void **\_M\_detach\_single** ()  throw ()\
 **\_Safe\_unordered\_container\_base** \* **\_M\_get\_container** () const noexcept\
 \_\_gnu\_cxx::\_\_mutex & **\_M\_get\_mutex** ()  throw ()\

### Friends

bool **operator!=** (const **\_Self** &\_\_lhs, const **\_OtherSelf** &\_\_rhs) noexcept\
 bool **operator!=** (const **\_Self** &\_\_lhs, const **\_Self** &\_\_rhs) noexcept\
 bool **operator==** (const **\_Self** &\_\_lhs, const **\_OtherSelf** &\_\_rhs) noexcept\
 bool **operator==** (const **\_Self** &\_\_lhs, const **\_Self** &\_\_rhs) noexcept\

## Detailed Description

### template\<typename \_Iterator, typename \_Sequence\>

class \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>"Safe iterator wrapper.

The class template \_Safe\_local\_iterator is a wrapper around an iterator that tracks the iterator's movement among sequences and checks that operations performed on the 'safe' iterator are legal. In additional to the basic iterator operations (which are validated, and then passed to the underlying iterator), \_Safe\_local\_iterator has member functions for iterator invalidation, attaching/detaching the iterator from sequences, and querying the iterator's state.

## Constructor & Destructor Documentation

### template\<typename \_Iterator , typename \_Sequence \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator ()` [inline]`, ` [noexcept]`

**Postcondition**

the iterator is singular and unattached

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**.

### template\<typename \_Iterator , typename \_Sequence \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator (\_Iterator \_\_i, const \_Safe\_sequence\_base \* \_\_cont)` [inline]`

Safe iterator construction from an unsafe iterator and its sequence.

**Precondition**

`seq` is not NULL

**Postcondition**

this is not singular

References **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_singular()**.

### template\<typename \_Iterator , typename \_Sequence \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator (const \_Safe\_local\_iterator\< \_Iterator, \_Sequence \> & \_\_x)` [inline]`, ` [noexcept]`

Copy construction.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**.

### template\<typename \_Iterator , typename \_Sequence \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator (\_Safe\_local\_iterator\< \_Iterator, \_Sequence \> && \_\_x)` [inline]`, ` [noexcept]`

Move construction.

**Postcondition**

\_\_x is singular and unattached

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**, and **std::swap()**.

### template\<typename \_Iterator , typename \_Sequence \> template\<typename \_MutableIterator \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator (const \_Safe\_local\_iterator\< \_MutableIterator, typename \_\_gnu\_cxx::\_\_enable\_if\< \_IsConstant::\_\_value &&std::\_\_are\_same\< \_MutableIterator, \_OtherIterator \>::\_\_value, \_Sequence \>::\_\_type \> & \_\_x)` [inline]`, ` [noexcept]`

Converting constructor from a mutable iterator to a constant iterator.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**.

## Member Function Documentation

### template\<typename \_Iterator , typename \_Sequence \> void \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach (\_Safe\_sequence\_base \* \_\_seq)` [inline]`

Attach iterator to the given sequence.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_attach()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_S\_constant()**.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### void \_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_attach (\_Safe\_sequence\_base \* \_\_seq, bool \_\_constant)` [protected]`, ` [inherited]`

Attaches this iterator to the given container, detaching it from whatever container it was attached to originally. If the new container is the NULL pointer, the iterator is left unattached.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_Safe\_local\_iterator\_base()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_Safe\_local\_iterator\_base()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**.

### template\<typename \_Iterator , typename \_Sequence \> void \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach\_single (\_Safe\_sequence\_base \* \_\_seq)` [inline]`

Likewise, but not thread-safe.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_attach\_single()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_S\_constant()**.

### void \_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_attach\_single (\_Safe\_sequence\_base \* \_\_seq, bool \_\_constant)` [protected]`, ` [inherited]`

Likewise, but not thread-safe.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach\_single()**.

### bool \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_attached\_to (const \_Safe\_sequence\_base \* \_\_seq) const` [inline]`, ` [inherited]`

Determines if we are attached to the given sequence.

References **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_sequence**.

### bool \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_can\_compare (const \_Safe\_iterator\_base & \_\_x) const` [inherited]`

Can we compare this iterator to the given iterator `__x`? Returns true if both iterators are nonsingular and reference the same sequence.

### template\<typename \_Iterator , typename \_Sequence \> bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_dereferenceable () const` [inline]`

Is the iterator dereferenceable?

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_end()**, and **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_singular()**.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator\*()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator-\>()**.

### void \_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_detach ()` [protected]`, ` [inherited]`

Detach the iterator for whatever container it is attached to, if any.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### void \_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_detach\_single ()` [protected]`, ` [inherited]`

Likewise, but not thread-safe.

### \_\_gnu\_cxx::\_\_mutex & \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_get\_mutex ()` [protected]`, ` [inherited]`

For use in \_Safe\_iterator.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator++()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator++()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### template\<typename \_Iterator , typename \_Sequence \> template\<typename \_Other \> bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_in\_same\_bucket (const \_Safe\_local\_iterator\< \_Other, \_Sequence \> & \_\_other) const` [inline]`

Is this iterator part of the same bucket as the other one?

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::bucket()**.

### template\<typename \_Iterator , typename \_Sequence \> bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_incrementable () const` [inline]`

Is the iterator incrementable?

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_end()**, and **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_singular()**.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**.

### void \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_invalidate ()` [inline]`, ` [inherited]`

Invalidate the iterator, making it singular.

References **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_version**.

### template\<typename \_Iterator , typename \_Sequence \> bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_begin () const` [inline]`

Is this iterator equal to the sequence's begin(bucket) iterator?

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::bucket()**.

### template\<typename \_Iterator , typename \_Sequence \> bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_end () const` [inline]`

Is this iterator equal to the sequence's end(bucket) iterator?

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::bucket()**.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_dereferenceable()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_incrementable()**.

### void \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_reset ()` [inherited]`

Reset all member variables

### bool \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_singular () const` [inherited]`

Is this iterator singular?

Referenced by **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::\_Safe\_iterator()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_\_check\_singular\_aux()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::\_M\_dereferenceable()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_dereferenceable()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::\_M\_incrementable()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_incrementable()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### void \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_unlink ()` [inline]`, ` [inherited]`

Unlink itself

References **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_next**, and **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_prior**.

### template\<typename \_Iterator , typename \_Sequence \> static constexpr bool \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_S\_constant ()` [inline]`, ` [static]`, ` [constexpr]`

Determine if this is a constant iterator.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach\_single()**.

### template\<typename \_Iterator , typename \_Sequence \> \_Iterator & \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base ()` [inline]`, ` [noexcept]`

Return the underlying iterator.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_begin()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_end()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::bucket()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator\*()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator-\>()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### template\<typename \_Iterator , typename \_Sequence \> size\_type \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::bucket () const` [inline]`

Return the bucket.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

Referenced by **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_in\_same\_bucket()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_begin()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_is\_end()**.

### template\<typename \_Iterator , typename \_Sequence \> \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator \_Iterator () const` [inline]`

Conversion to underlying non-debug iterator to allow better interaction with non-debug containers.

### template\<typename \_Iterator , typename \_Sequence \> reference \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator\* () const` [inline]`

Iterator dereference.

**Precondition**

iterator is dereferenceable

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_dereferenceable()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

### template\<typename \_Iterator , typename \_Sequence \> \_Safe\_local\_iterator & \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++ ()` [inline]`

Iterator preincrement.

**Precondition**

iterator is incrementable

References **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_get\_mutex()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_incrementable()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

### template\<typename \_Iterator , typename \_Sequence \> \_Safe\_local\_iterator \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++ (int)` [inline]`

Iterator postincrement.

**Precondition**

iterator is incrementable

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_Safe\_local\_iterator()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_get\_mutex()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_incrementable()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_sequence**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

### template\<typename \_Iterator , typename \_Sequence \> pointer \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator-\> () const` [inline]`

Iterator dereference.

**Precondition**

iterator is dereferenceable

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_dereferenceable()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

### template\<typename \_Iterator , typename \_Sequence \> \_Safe\_local\_iterator & \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator= (\_Safe\_local\_iterator\< \_Iterator, \_Sequence \> && \_\_x)` [inline]`, ` [noexcept]`

Move assignment.

**Postcondition**

\_\_x is singular and unattached

References **std::\_\_addressof()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_detach()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_get\_mutex()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_sequence**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_version**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

### template\<typename \_Iterator , typename \_Sequence \> \_Safe\_local\_iterator & \_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator= (const \_Safe\_local\_iterator\< \_Iterator, \_Sequence \> & \_\_x)` [inline]`

Copy assignment.

References **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::\_M\_attach()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_M\_detach()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_get\_mutex()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_sequence**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_singular()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_version**, **\_\_gnu\_debug::\_Safe\_sequence\_base::\_M\_version**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::base()**.

## Member Data Documentation

### \_Safe\_iterator\_base\* \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_next` [inherited]`

Pointer to the next iterator in the sequence's list of iterators. Only valid when \_M\_sequence != NULL.

Referenced by **\_\_gnu\_debug::\_Safe\_sequence\< \_SafeSequence \>::\_M\_invalidate\_if()**, **\_\_gnu\_debug::\_Safe\_sequence\< \_Sequence \>::\_M\_transfer\_from\_if()**, and **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_unlink()**.

### \_Safe\_iterator\_base\* \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_prior` [inherited]`

Pointer to the previous iterator in the sequence's list of iterators. Only valid when \_M\_sequence != NULL.

Referenced by **\_\_gnu\_debug::\_Safe\_sequence\< \_SafeSequence \>::\_M\_invalidate\_if()**, **\_\_gnu\_debug::\_Safe\_sequence\< \_Sequence \>::\_M\_transfer\_from\_if()**, and **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_unlink()**.

### \_Safe\_sequence\_base\* \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_sequence` [inherited]`

The sequence this iterator references; may be NULL to indicate a singular iterator.

Referenced by **\_\_gnu\_debug::\_Safe\_iterator\_base::\_Safe\_iterator\_base()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\_base::\_Safe\_local\_iterator\_base()**, **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_attached\_to()**, **\_\_gnu\_debug::\_Safe\_sequence\< \_Sequence \>::\_M\_transfer\_from\_if()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator++()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator++()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

### unsigned int \_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_version` [inherited]`

The version number of this iterator. The sentinel value 0 is used to indicate an invalidated iterator (i.e., one that is singular because of an operation on the container). This version number must equal the version number in the sequence referenced by \_M\_sequence for the iterator to be non-singular.

Referenced by **\_\_gnu\_debug::\_Safe\_iterator\_base::\_M\_invalidate()**, **\_\_gnu\_debug::\_Safe\_sequence\< \_Sequence \>::\_M\_transfer\_from\_if()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**, **\_\_gnu\_debug::\_Safe\_iterator\< \_Iterator, \_Sequence, \_Category \>::operator=()**, and **\_\_gnu\_debug::\_Safe\_local\_iterator\< \_Iterator, \_Sequence \>::operator=()**.

## Author

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