Struct qt_core::q_cbor_map::Iterator
source · #[repr(C)]pub struct Iterator { /* private fields */ }
Expand description
The QCborMap::Iterator class provides an STL-style non-const iterator for QCborMap.
C++ class: QCborMap::Iterator
.
The QCborMap::Iterator class provides an STL-style non-const iterator for QCborMap.
QCborMap::Iterator allows you to iterate over a QCborMap and to modify the value (but not the key) stored under a particular key. If you want to iterate over a const QCborMap, you should use QCborMap::ConstIterator. It is generally good practice to use QCborMap::ConstIterator on a non-const QCborMap as well, unless you need to change the QCborMap through the iterator. Const iterators are slightly faster, and improve code readability.
You must initialize the iterator using a QCborMap function like QCborMap::begin(), QCborMap::end(), or QCborMap::find() before you can start iterating..
Multiple iterators can be used on the same object. Existing iterators will however become dangling once the object gets modified.
Implementations§
source§impl Iterator
impl Iterator
sourcepub unsafe fn add_assign(&self, j: c_longlong) -> Ref<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn add_assign(&self, j: c_longlong) -> Ref<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Advances the iterator by j positions. If j is negative, the iterator goes backward. Returns a reference to this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator+=(long long j)
.
Advances the iterator by j positions. If j is negative, the iterator goes backward. Returns a reference to this iterator.
See also operator-=() and operator+().
sourcepub unsafe fn copy_from(
&self,
other: impl CastInto<Ref<Iterator>>
) -> Ref<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn copy_from( &self, other: impl CastInto<Ref<Iterator>> ) -> Ref<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Makes this iterator a copy of other and returns a reference to this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator=(const QCborMap::Iterator& other)
.
Makes this iterator a copy of other and returns a reference to this iterator.
sourcepub unsafe fn dec(&self) -> Ref<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn dec(&self) -> Ref<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.The prefix -- operator, --it
, makes the preceding item current and returns this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator--()
.
The prefix – operator, –it
, makes the preceding item current and returns this iterator.
Calling this function on QCborArray::begin() leads to undefined results.
See also operator++().
sourcepub unsafe fn dec_postfix(&self, arg1: c_int) -> CppBox<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn dec_postfix(&self, arg1: c_int) -> CppBox<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.This is an overloaded function.
Calls C++ function: QCborMap::Iterator QCborMap::Iterator::operator--(int arg1)
.
This is an overloaded function.
The postfix -- operator, it--
, makes the preceding item current and returns an iterator to the previously current item.
sourcepub unsafe fn inc(&self) -> Ref<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn inc(&self) -> Ref<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.The prefix ++ operator, ++it
, advances the iterator to the next item in the array and returns this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator++()
.
The prefix ++ operator, ++it
, advances the iterator to the next item in the array and returns this iterator.
Calling this function on QCborArray::end() leads to undefined results.
See also operator--().
sourcepub unsafe fn inc_postfix(&self, arg1: c_int) -> CppBox<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn inc_postfix(&self, arg1: c_int) -> CppBox<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.This is an overloaded function.
Calls C++ function: QCborMap::Iterator QCborMap::Iterator::operator++(int arg1)
.
This is an overloaded function.
The postfix ++ operator, it++
, advances the iterator to the next item in the array and returns an iterator to the previously current item.
sourcepub unsafe fn indirection(&self) -> CppBox<QPairOfQCborValueRefQCborValueRef>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn indirection(&self) -> CppBox<QPairOfQCborValueRefQCborValueRef>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Returns a modifiable reference to the current item.
Calls C++ function: QPair<QCborValueRef, QCborValueRef> QCborMap::Iterator::operator*() const
.
Returns a modifiable reference to the current item.
You can change the value of an item by using operator*() on the left side of an assignment.
The return value is of type QCborValueRef, a helper class for QCborArray and QCborMap. When you get an object of type QCborValueRef, you can use it as if it were a reference to a QCborValue. If you assign to it, the assignment will apply to the element in the QCborArray or QCborMap from which you got the reference.
sourcepub unsafe fn key(&self) -> CppBox<QCborValue>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn key(&self) -> CppBox<QCborValue>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Returns the current item's key.
Calls C++ function: QCborValue QCborMap::Iterator::key() const
.
Returns the current item’s key.
There is no direct way of changing an item's key through an iterator, although it can be done by calling QCborMap::erase() followed by QCborMap::insert().
See also value().
sourcepub unsafe fn new() -> CppBox<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn new() -> CppBox<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Constructs an uninitialized iterator.
Calls C++ function: [constructor] void QCborMap::Iterator::Iterator()
.
Constructs an uninitialized iterator.
Functions like key(), value(), and operator++() must not be called on an uninitialized iterator. Use operator=() to assign a value to it before using it.
See also QCborMap::begin() and QCborMap::end().
sourcepub unsafe fn new_copy(arg1: impl CastInto<Ref<Iterator>>) -> CppBox<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn new_copy(arg1: impl CastInto<Ref<Iterator>>) -> CppBox<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Constructs an iterator as a copy of other.
Calls C++ function: [constructor] void QCborMap::Iterator::Iterator(const QCborMap::Iterator& arg1)
.
Constructs an iterator as a copy of other.
sourcepub unsafe fn struct_deref(&self) -> Ptr<QCborValueRef>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn struct_deref(&self) -> Ptr<QCborValueRef>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Returns a pointer to a modifiable reference to the current item.
Calls C++ function: QCborValueRef* QCborMap::Iterator::operator->() const
.
Returns a pointer to a modifiable reference to the current item.
sourcepub unsafe fn sub_assign(&self, j: c_longlong) -> Ref<Iterator>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn sub_assign(&self, j: c_longlong) -> Ref<Iterator>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Makes the iterator go back by j positions. If j is negative, the iterator goes forward. Returns a reference to this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator-=(long long j)
.
Makes the iterator go back by j positions. If j is negative, the iterator goes forward. Returns a reference to this iterator.
See also operator+=() and operator-().
sourcepub unsafe fn value(&self) -> CppBox<QCborValueRef>
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
pub unsafe fn value(&self) -> CppBox<QCborValueRef>
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.Returns a modifiable reference to the current item's value.
Calls C++ function: QCborValueRef QCborMap::Iterator::value() const
.
Returns a modifiable reference to the current item’s value.
You can change the value for a key by using value() on the left side of an assignment.
The return value is of type QCborValueRef, a helper class for QCborArray and QCborMap. When you get an object of type QCborValueRef, you can use it as if it were a reference to a QCborValue. If you assign to it, the assignment will apply to the element in the QCborArray or QCborMap from which you got the reference.
Trait Implementations§
source§impl Add<i64> for &Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Add<i64> for &Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§fn add(self, j: c_longlong) -> CppBox<Iterator>
fn add(self, j: c_longlong) -> CppBox<Iterator>
Returns an iterator to the item at position j steps forward from this iterator. If j is negative, the iterator goes backward.
Calls C++ function: QCborMap::Iterator QCborMap::Iterator::operator+(long long j) const
.
Returns an iterator to the item at position j steps forward from this iterator. If j is negative, the iterator goes backward.
See also operator-() and operator+=().
source§impl CppDeletable for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl CppDeletable for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§unsafe fn delete(&self)
unsafe fn delete(&self)
The QCborMap::Iterator class provides an STL-style non-const iterator for QCborMap.
Calls C++ function: [destructor] void QCborMap::Iterator::~Iterator()
.
The QCborMap::Iterator class provides an STL-style non-const iterator for QCborMap.
QCborMap::Iterator allows you to iterate over a QCborMap and to modify the value (but not the key) stored under a particular key. If you want to iterate over a const QCborMap, you should use QCborMap::ConstIterator. It is generally good practice to use QCborMap::ConstIterator on a non-const QCborMap as well, unless you need to change the QCborMap through the iterator. Const iterators are slightly faster, and improve code readability.
You must initialize the iterator using a QCborMap function like QCborMap::begin(), QCborMap::end(), or QCborMap::find() before you can start iterating..
Multiple iterators can be used on the same object. Existing iterators will however become dangling once the object gets modified.
source§impl Decrement for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Decrement for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§unsafe fn dec(&self) -> Ref<Iterator>
unsafe fn dec(&self) -> Ref<Iterator>
The prefix -- operator, --it
, makes the preceding item current and returns this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator--()
.
The prefix – operator, –it
, makes the preceding item current and returns this iterator.
Calling this function on QCborArray::begin() leads to undefined results.
See also operator++().
source§impl Ge<Ref<ConstIterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Ge<Ref<ConstIterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Ge<Ref<Iterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Ge<Ref<Iterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Gt<Ref<ConstIterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Gt<Ref<ConstIterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Gt<Ref<Iterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Gt<Ref<Iterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Increment for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Increment for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§unsafe fn inc(&self) -> Ref<Iterator>
unsafe fn inc(&self) -> Ref<Iterator>
The prefix ++ operator, ++it
, advances the iterator to the next item in the array and returns this iterator.
Calls C++ function: QCborMap::Iterator& QCborMap::Iterator::operator++()
.
The prefix ++ operator, ++it
, advances the iterator to the next item in the array and returns this iterator.
Calling this function on QCborArray::end() leads to undefined results.
See also operator--().
source§impl Indirection for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Indirection for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§unsafe fn indirection(&self) -> CppBox<QPairOfQCborValueRefQCborValueRef>
unsafe fn indirection(&self) -> CppBox<QPairOfQCborValueRefQCborValueRef>
Returns a modifiable reference to the current item.
Calls C++ function: QPair<QCborValueRef, QCborValueRef> QCborMap::Iterator::operator*() const
.
Returns a modifiable reference to the current item.
You can change the value of an item by using operator*() on the left side of an assignment.
The return value is of type QCborValueRef, a helper class for QCborArray and QCborMap. When you get an object of type QCborValueRef, you can use it as if it were a reference to a QCborValue. If you assign to it, the assignment will apply to the element in the QCborArray or QCborMap from which you got the reference.
§type Output = CppBox<QPairOfQCborValueRefQCborValueRef>
type Output = CppBox<QPairOfQCborValueRefQCborValueRef>
source§impl Le<Ref<ConstIterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Le<Ref<ConstIterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Le<Ref<Iterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Le<Ref<Iterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Lt<Ref<ConstIterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Lt<Ref<ConstIterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Lt<Ref<Iterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Lt<Ref<Iterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl PartialEq<Ref<ConstIterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl PartialEq<Ref<ConstIterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl PartialEq<Ref<Iterator>> for Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl PartialEq<Ref<Iterator>> for Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Sub<Ref<Iterator>> for &Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Sub<Ref<Iterator>> for &Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§impl Sub<i64> for &Iterator
Available on cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.
impl Sub<i64> for &Iterator
cpp_lib_version="5.12.2"
or cpp_lib_version="5.13.0"
or cpp_lib_version="5.14.0"
only.source§fn sub(self, j: c_longlong) -> CppBox<Iterator>
fn sub(self, j: c_longlong) -> CppBox<Iterator>
Returns an iterator to the item at position j steps backward from this iterator. If j is negative, the iterator goes forward.
Calls C++ function: QCborMap::Iterator QCborMap::Iterator::operator-(long long j) const
.
Returns an iterator to the item at position j steps backward from this iterator. If j is negative, the iterator goes forward.
See also operator+() and operator-=().