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ROOT 6.16/01 Reference Guide |
a template for a random access iterator for the basic_json class
This class implements a both iterators (iterator and const_iterator) for the basic_json class.
@requirement The class satisfies the following concept requirements:
Public Types | |
| using | difference_type = typename basic_json::difference_type |
| a type to represent differences between iterators More... | |
| using | iterator_category = std::bidirectional_iterator_tag |
| the category of the iterator More... | |
| using | pointer = typename std::conditional< std::is_const< U >::value, typename basic_json::const_pointer, typename basic_json::pointer >::type |
| defines a pointer to the type iterated over (value_type) More... | |
| using | reference = typename std::conditional< std::is_const< U >::value, typename basic_json::const_reference, typename basic_json::reference >::type |
| defines a reference to the type iterated over (value_type) More... | |
| using | value_type = typename basic_json::value_type |
| the type of the values when the iterator is dereferenced More... | |
Public Member Functions | |
| iter_impl ()=default | |
| default constructor More... | |
| iter_impl (const iter_impl &other) noexcept | |
| copy constructor More... | |
| iter_impl (pointer object) noexcept | |
| constructor for a given JSON instance More... | |
| object_t::key_type | key () const |
| return the key of an object iterator More... | |
| operator const_iterator () const | |
| bool | operator!= (const iter_impl &other) const |
| comparison: not equal More... | |
| reference | operator* () const |
| return a reference to the value pointed to by the iterator More... | |
| iter_impl | operator+ (difference_type i) |
| add to iterator More... | |
| iter_impl & | operator++ () |
| pre-increment (++it) More... | |
| iter_impl | operator++ (int) |
| post-increment (it++) More... | |
| iter_impl & | operator+= (difference_type i) |
| add to iterator More... | |
| difference_type | operator- (const iter_impl &other) const |
| return difference More... | |
| iter_impl | operator- (difference_type i) |
| subtract from iterator More... | |
| iter_impl & | operator-- () |
| pre-decrement (–it) More... | |
| iter_impl | operator-- (int) |
| post-decrement (it–) More... | |
| iter_impl & | operator-= (difference_type i) |
| subtract from iterator More... | |
| pointer | operator-> () const |
| dereference the iterator More... | |
| bool | operator< (const iter_impl &other) const |
| comparison: smaller More... | |
| bool | operator<= (const iter_impl &other) const |
| comparison: less than or equal More... | |
| iter_impl & | operator= (iter_impl other) noexcept(std::is_nothrow_move_constructible< pointer >::value and std::is_nothrow_move_assignable< pointer >::value and std::is_nothrow_move_constructible< internal_iterator >::value and std::is_nothrow_move_assignable< internal_iterator >::value) |
| copy assignment More... | |
| bool | operator== (const iter_impl &other) const |
| comparison: equal More... | |
| bool | operator> (const iter_impl &other) const |
| comparison: greater than More... | |
| bool | operator>= (const iter_impl &other) const |
| comparison: greater than or equal More... | |
| reference | operator[] (difference_type n) const |
| access to successor More... | |
| reference | value () const |
| return the value of an iterator More... | |
Private Member Functions | |
| void | set_begin () noexcept |
| set the iterator to the first value More... | |
| void | set_end () noexcept |
| set the iterator past the last value More... | |
Private Attributes | |
| internal_iterator | m_it = internal_iterator() |
| the actual iterator of the associated instance More... | |
| pointer | m_object = nullptr |
| associated JSON instance More... | |
Friends | |
| class | basic_json |
| allow basic_json to access private members More... | |
| using nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::iter_impl< U >::difference_type = typename basic_json::difference_type |
| using nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::iter_impl< U >::iterator_category = std::bidirectional_iterator_tag |
| using nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::iter_impl< U >::pointer = typename std::conditional<std::is_const<U>::value, typename basic_json::const_pointer, typename basic_json::pointer>::type |
| using nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::iter_impl< U >::reference = typename std::conditional<std::is_const<U>::value, typename basic_json::const_reference, typename basic_json::reference>::type |
| using nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::iter_impl< U >::value_type = typename basic_json::value_type |
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