Concept Sequence

Sequence

Description

A Sequence exposes an elements property map that models ReadablePropertyMap and begin and end cursors that model ReadableIterator and IncrementableIterator.

Associated types

elements
```
boost::result_of<boost::sequence::op::elements(boost::add_reference<S>::type)>::type
```
The type of the property map for accessing the elements in the Sequence.

cursor

boost::result_of<boost::sequence::op::begin(boost::add_reference<S>::type)>::type

Iter

end_cursor
```
boost::result_of<boost::sequence::op::end(boost::add_reference<S>::type)>::type
```
The end cursor doesn't have to have the same type as the begin cursor, just as long as you can compare them.
key_type
```
ReadableIterator<cursor>::reference
```
The key type of the cursor.

value_type

property_map::traits::value_type<elements, cursor>::type

The value type of the elements property map.

Notation

S: A type playing the role of sequence-type in the Sequence concept.
s: Object of type S

Valid expressions

Name	Expression	Type	Semantics
Elements	boost::sequence::elements(s)	elements	Returns the ReadablePropertyMap for accessing the elements of the Sequence `s`.
Begin cursor	boost::sequence::begin(s)	cursor	Returns a cursor that, when used with the `elements` property map, traverses the elements of the Sequence `s`.
End cursor	boost::sequence::end(s)	end_cursor	Returns a suitable cursor for terminating the traversal of the Sequence `s`.