Guido: > Generally speaking, iterator implementations aren't created by making > changes to an existing class Continuing with my scanner example, it's conceivable that I might want to give it an iterator interface as an alternative to the existing one -- it's already an iterator, really, it just doesn't have the new standard iterator interface. Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | A citizen of NewZealandCorp, a | Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | greg@cosc.canterbury.ac.nz +--------------------------------------+
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