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r
and s
are forward iterators and that
v
is a value of type Object
.
expression | return type | assertion/note pre/port-condition |
---|---|---|
r.cmp(s)
|
boolean
| compare two iterators for equivalence |
r.next()
|
Iterator
| advance the iterator |
r.get()
|
Object
| deference the iterator. |
r.put(v)
|
Object
| deference the iterator for assignment. |
r.distance(s)
|
int
|
the number of times r must be advanced, in order to reach
s .
|
NOTE: The fact that r.cmp(s)
implies
r.next().cmp(s.next())
(which is not true for input and output iterators) and the removal on
the restrictions on the number of the assignments through the iterator
(which applies to output iterators) allows the use of multi-pass
one-directional algorithms with forward iterators.
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