scala

trait CountedIterator

[source: scala/CountedIterator.scala]

trait CountedIterator[+A]
extends Iterator[A]
Counted iterators keep track of the number of elements seen so far
Author
Martin Odersky
Version
1.0, 16/07/2003
Method Summary
override def buffered : BufferedIterator[A] with CountedIterator[A]
Returns a buffered iterator from this iterator.
abstract def count : Int
counts the elements in this iterator; counts start at 0
override def counted : CountedIterator
Returns a counted iterator from this iterator.
Methods inherited from Iterator
hasNext (abstract), next (abstract), take, drop, map, append, ++, flatMap, filter, takeWhile, dropWhile, zip, zipWithIndex, foreach, forall, exists, contains, find, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, duplicate, copyToArray, readInto, readInto, readInto, copyToBuffer, toList, mkString, mkString, addString, toString
Methods inherited from AnyRef
getClass, hashCode, equals, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
abstract def count : Int
counts the elements in this iterator; counts start at 0

override def counted : CountedIterator
Returns a counted iterator from this iterator.
Overrides
Iterator.counted

override def buffered : BufferedIterator[A] with CountedIterator[A]
Returns a buffered iterator from this iterator.
Overrides
Iterator.buffered