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# QTextBlock::iterator Class Reference

The QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock. More...

    #include <iterator>

- List of all members, including inherited members

### Public Functions

- iterator ()
- iterator ( const iterator & other )
- bool atEnd () const
- QTextFragment fragment () const
- bool operator!= ( const iterator & other ) const
- iterator operator++ ()
- iterator operator++ ( int )
- iterator operator-- ()
- iterator operator-- ( int )
- bool operator== ( const iterator & other ) const

## Detailed Description

The QTextBlock::iterator class provides an iterator for reading the contents of a QTextBlock.

A block consists of a sequence of text fragments. This class provides a way to iterate over these, and read their contents. It does not provide a way to modify the internal structure or contents of the block.

An iterator can be constructed and used to access the fragments within a text block in the following way:

            QTextBlock::iterator it;
            for (it = currentBlock.begin(); !(it.atEnd()); ++it) {

                QTextFragment fragment = it.fragment();
                if (fragment.isValid()) {
                    ...
                }
            }

See also QTextFragment.

## Member Function Documentation

### iterator::iterator ()

Constructs an iterator for this text block.

### iterator::iterator ( const iterator & other )

Copy constructor. Constructs a copy of the other iterator.

### bool iterator::atEnd () const

Returns true if the current item is the last item in the text block.

### QTextFragment iterator::fragment () const

Returns the text fragment the iterator currently points to.

### bool iterator::operator!= ( const iterator & other ) const

Retuns true if this iterator is different from the other iterator; otherwise returns false.

### iterator iterator::operator++ ()

The prefix ++ operator (`++i`) advances the iterator to the next item in the hash and returns an iterator to the new current item.

### iterator iterator::operator++ ( int )

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

The postfix ++ operator (`i++`) advances the iterator to the next item in the text block and returns an iterator to the old current item.

### iterator iterator::operator-- ()

The prefix -- operator (`--i`) makes the preceding item current and returns an iterator pointing to the new current item.

### iterator iterator::operator-- ( int )

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

The postfix -- operator (`i--`) makes the preceding item current and returns an iterator to the old current item.

### bool iterator::operator== ( const iterator & other ) const

Retuns true if this iterator is the same as the other iterator; otherwise returns false.