Proposals:Refactoring Statistics Framework 2007 Iterators

Review of Iterators from the Statistics Framework

Summary Table

The ITK Statistics Framework has a collection of data containers many of which have Iterators associated with them.

This page presents a review of issues that have been identified with some iterators in the Statistics Framework and describes proposed actions intended to fix those issues.

List of Issues

• Decrement operator was not incremented correctly in itkListSample.h (Fixed)
• Testing coverage of iterators is not complete, allowing problems like the one above to go unnoticed.
• Functionality was not available to create (or assign) a const iterator from a non-const iterator in itkSubsample.h (Fixed). This problem was found in a number of classes (Not yet fixed).
• In general a consistent set of iterator operations is not present.

Proposed Solutions

• Propose a set of core iterator functionality for sample containers.
• Update containers to include this core functionality where necessary.
• Write tests that cover all iterator operations.
• Fix iterator implementation bugs as uncovered by tests.