QJsonArray::const_iterator Class | Qt Core (original) (raw)

class QJsonArray::const_iterator

The QJsonArray::const_iterator class provides an STL-style const iterator for QJsonArray. More...

• List of all members, including inherited members

This class is strongly comparable.

This class is strongly comparable with QJsonArray::iterator.

Public Types

Public Functions

See also QJsonArray::iterator.

Member Type Documentation

const_iterator::iterator_category

A synonym for std::random_access_iterator_tag indicating this iterator is a random access iterator.

Member Function Documentation

const_iterator::const_iterator()

Constructs an uninitialized iterator.

Functions like operator*() and operator++() should not be called on an uninitialized iterator. Use operator=() to assign a value to it before using it.

See also QJsonArray::constBegin() and QJsonArray::constEnd().

const_iterator::const_iterator(const QJsonArray::iterator &other)

Constructs a copy of other.

const QJsonValueConstRef const_iterator::operator*() const

Returns the current item.

QJsonArray::const_iterator const_iterator::operator+(qsizetype j) const

Returns an iterator to the item at j positions forward from this iterator. If j is negative, the iterator goes backward.

See also operator-() and operator+=().

QJsonArray::const_iterator &const_iterator::operator++()

The prefix ++ operator, ++it, advances the iterator to the next item in the array and returns an iterator to the new current item.

Calling this function on QJsonArray::end() leads to undefined results.

See also operator--().

QJsonArray::const_iterator const_iterator::operator++(int)

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.

QJsonArray::const_iterator &const_iterator::operator+=(qsizetype j)

Advances the iterator by j items. If j is negative, the iterator goes backward.

See also operator-=() and operator+().

qsizetype const_iterator::operator-(QJsonArray::const_iterator other) const

Returns the number of items between the item pointed to by other and the item pointed to by this iterator.

QJsonArray::const_iterator const_iterator::operator-(qsizetype j) const

Returns an iterator to the item at j positions backward from this iterator. If j is negative, the iterator goes forward.

See also operator+() and operator-=().

QJsonArray::const_iterator &const_iterator::operator--()

The prefix -- operator, --it, makes the preceding item current and returns an iterator to the new current item.

Calling this function on QJsonArray::begin() leads to undefined results.

See also operator++().

QJsonArray::const_iterator const_iterator::operator--(int)

This is an overloaded function.

The postfix -- operator, it--, makes the preceding item current and returns an iterator to the previously current item.

QJsonArray::const_iterator &const_iterator::operator-=(qsizetype j)

Makes the iterator go back by j items. If j is negative, the iterator goes forward.

See also operator+=() and operator-().

const QJsonValueConstRef *const_iterator::operator->() const

Returns a pointer to the current item.

QJsonValueConstRef const_iterator::operator[](qsizetype _j_) const

Returns the item at offset j from the item pointed to by this iterator (the item at position *this + j).

This function is provided to make QJsonArray iterators behave like C++ pointers.

See also operator+().

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