GenericMemberIterator< Const, Encoding, Allocator >

(Constant) member iterator for a JSON object value More...

#include <document.h>

Collaboration diagram for GenericMemberIterator< Const, Encoding, Allocator >:

Public Types
typedef GenericMemberIterator	Iterator
	Iterator type itself. More...
typedef GenericMemberIterator< true, Encoding, Allocator >	ConstIterator
	Constant iterator type. More...
typedef GenericMemberIterator< false, Encoding, Allocator >	NonConstIterator
	Non-constant iterator type. More...
typedef pointer	Pointer
	Pointer to (const) GenericMember. More...
typedef reference	Reference
	Reference to (const) GenericMember. More...
typedef difference_type	DifferenceType
	Signed integer type (e.g. ptrdiff_t) More...
std::iterator_traits support
typedef ValueType	value_type
typedef ValueType *	pointer
typedef ValueType &	reference
typedef std::ptrdiff_t	difference_type
typedef std::random_access_iterator_tag	iterator_category

Public Member Functions
	GenericMemberIterator ()
	Default constructor (singular value) More...
	GenericMemberIterator (const NonConstIterator &it)
	Iterator conversions to more const. More...
Iterator &	operator= (const NonConstIterator &it)
DifferenceType	operator- (ConstIterator that) const
	Distance. More...
stepping
Iterator &	operator++ ()
Iterator &	operator-- ()
Iterator	operator++ (int)
Iterator	operator-- (int)
increment/decrement
Iterator	operator+ (DifferenceType n) const
Iterator	operator- (DifferenceType n) const
Iterator &	operator+= (DifferenceType n)
Iterator &	operator-= (DifferenceType n)
relations
bool	operator== (ConstIterator that) const
bool	operator!= (ConstIterator that) const
bool	operator<= (ConstIterator that) const
bool	operator>= (ConstIterator that) const
bool	operator< (ConstIterator that) const
bool	operator> (ConstIterator that) const
dereference
Reference	operator* () const
Pointer	operator-> () const
Reference	operator[] (DifferenceType n) const

Private Types
typedef GenericMember< Encoding, Allocator >	PlainType
typedef internal::MaybeAddConst< Const, PlainType >::Type	ValueType

Private Member Functions
	GenericMemberIterator (Pointer p)
	Internal constructor from plain pointer. More...

Private Attributes
Pointer	ptr_
	raw pointer More...

Friends
class	GenericValue< Encoding, Allocator >
template<bool , typename , typename >
class	GenericMemberIterator

Detailed Description

template<bool Const, typename Encoding, typename Allocator>
class GenericMemberIterator< Const, Encoding, Allocator >

(Constant) member iterator for a JSON object value

Template Parameters

Const	Is this a constant iterator?
Encoding	Encoding of the value. (Even non-string values need to have the same encoding in a document)
Allocator	Allocator type for allocating memory of object, array and string.

This class implements a Random Access Iterator for GenericMember elements of a GenericValue, see ISO/IEC 14882:2003(E) C++ standard, 24.1 [lib.iterator.requirements].

Note

This iterator implementation is mainly intended to avoid implicit conversions from iterator values to NULL, e.g. from GenericValue::FindMember.

Define RAPIDJSON_NOMEMBERITERATORCLASS to fall back to a pointer-based implementation, if your platform doesn't provide the C++ <iterator> header.

See also

GenericMember, GenericValue::MemberIterator, GenericValue::ConstMemberIterator

Definition at line 102 of file document.h.

Member Typedef Documentation

ConstIterator

typedef GenericMemberIterator<true,Encoding,Allocator> ConstIterator

Constant iterator type.

Definition at line 114 of file document.h.

difference_type

typedef std::ptrdiff_t difference_type

Definition at line 123 of file document.h.

DifferenceType

typedef difference_type DifferenceType

Signed integer type (e.g. ptrdiff_t)

Definition at line 132 of file document.h.

Iterator

typedef GenericMemberIterator Iterator

Iterator type itself.

Definition at line 112 of file document.h.

iterator_category

typedef std::random_access_iterator_tag iterator_category

Definition at line 124 of file document.h.

NonConstIterator

typedef GenericMemberIterator<false,Encoding,Allocator> NonConstIterator

Non-constant iterator type.

Definition at line 116 of file document.h.

PlainType

typedef GenericMember<Encoding,Allocator> PlainType

private

Definition at line 107 of file document.h.

pointer

typedef ValueType* pointer

Definition at line 121 of file document.h.

Pointer

typedef pointer Pointer

Pointer to (const) GenericMember.

Definition at line 128 of file document.h.

reference

typedef ValueType& reference

Definition at line 122 of file document.h.

Reference

typedef reference Reference

Reference to (const) GenericMember.

Definition at line 130 of file document.h.

value_type

typedef ValueType value_type

Definition at line 120 of file document.h.

ValueType

typedef internal::MaybeAddConst<Const,PlainType>::Type ValueType

private

Definition at line 108 of file document.h.

Constructor & Destructor Documentation

GenericMemberIterator() [1/3]

GenericMemberIterator ( )

inline

Default constructor (singular value)

Creates an iterator pointing to no element.

Note

All operations, except for comparisons, are undefined on such values.

Definition at line 138 of file document.h.

: ptr_() {}

GenericMemberIterator() [2/3]

GenericMemberIterator ( const NonConstIterator &  it )

inline

Iterator conversions to more const.

Parameters

it	(Non-const) iterator to copy from

Allows the creation of an iterator from another GenericMemberIterator that is "less const". Especially, creating a non-constant iterator from a constant iterator are disabled:

• const -> non-const (not ok)
• const -> const (ok)
• non-const -> const (ok)
• non-const -> non-const (ok)

Note

If the Const template parameter is already false, this constructor effectively defines a regular copy-constructor. Otherwise, the copy constructor is implicitly defined.

Definition at line 156 of file document.h.

: ptr_(it.ptr_) {}

GenericMemberIterator() [3/3]

GenericMemberIterator ( Pointer  p )

inlineexplicitprivate

Internal constructor from plain pointer.

Definition at line 198 of file document.h.

: ptr_(p) {}

Member Function Documentation

operator!=()

bool operator!= ( ConstIterator  that ) const

inline

Definition at line 179 of file document.h.

{ return ptr_ != that.ptr_; }

operator*()

Reference operator* ( ) const

inline

Definition at line 188 of file document.h.

{ return *ptr_; }

operator+()

Iterator operator+ ( DifferenceType  n ) const

inline

Definition at line 169 of file document.h.

{ return Iterator(ptr_+n); }

operator++() [1/2]

Iterator& operator++ ( )

inline

Definition at line 161 of file document.h.

{ ++ptr_; return *this; }

operator++() [2/2]

Iterator operator++ ( int  )

inline

Definition at line 163 of file document.h.

{ Iterator old(*this); ++ptr_; return old; }

operator+=()

Iterator& operator+= ( DifferenceType  n )

inline

Definition at line 172 of file document.h.

{ ptr_+=n; return *this; }

operator-() [1/2]

Iterator operator- ( DifferenceType  n ) const

inline

Definition at line 170 of file document.h.

{ return Iterator(ptr_-n); }

operator-() [2/2]

DifferenceType operator- ( ConstIterator  that ) const

inline

Distance.

Definition at line 194 of file document.h.

{ return ptr_-that.ptr_; }

operator--() [1/2]

Iterator& operator-- ( )

inline

Definition at line 162 of file document.h.

{ --ptr_; return *this; }

operator--() [2/2]

Iterator operator-- ( int  )

inline

Definition at line 164 of file document.h.

{ Iterator old(*this); --ptr_; return old; }

operator-=()

Iterator& operator-= ( DifferenceType  n )

inline

Definition at line 173 of file document.h.

{ ptr_-=n; return *this; }

operator->()

Pointer operator-> ( ) const

inline

Definition at line 189 of file document.h.

{ return ptr_; }

operator<()

bool operator< ( ConstIterator  that ) const

inline

Definition at line 182 of file document.h.

{ return ptr_ < that.ptr_; }

operator<=()

bool operator<= ( ConstIterator  that ) const

inline

Definition at line 180 of file document.h.

{ return ptr_ <= that.ptr_; }

operator=()

Iterator& operator= ( const NonConstIterator &  it )

inline

Definition at line 157 of file document.h.

{ ptr_ = it.ptr_; return *this; }

operator==()

bool operator== ( ConstIterator  that ) const

inline

Definition at line 178 of file document.h.

{ return ptr_ == that.ptr_; }

operator>()

bool operator> ( ConstIterator  that ) const

inline

Definition at line 183 of file document.h.

{ return ptr_ > that.ptr_; }

operator>=()

bool operator>= ( ConstIterator  that ) const

inline

Definition at line 181 of file document.h.

{ return ptr_ >= that.ptr_; }

operator[]()

Reference operator[] ( DifferenceType  n ) const

inline

Definition at line 190 of file document.h.

{ return ptr_[n]; }

Friends And Related Function Documentation

GenericMemberIterator

friend class GenericMemberIterator

friend

Definition at line 105 of file document.h.

GenericValue< Encoding, Allocator >

friend class GenericValue< Encoding, Allocator >

friend

Definition at line 104 of file document.h.

Member Data Documentation

ptr_

Pointer ptr_

private

raw pointer

Definition at line 200 of file document.h.

---

The documentation for this class was generated from the following file:

• rapidjson/document.h