Hat-Delta --- One Right Does Make a Wrong

Davie, Thomas, Chitil, Olaf (2005) Hat-Delta --- One Right Does Make a Wrong. In: Runciman, Colin, ed. Hat Day 2005: work in progress on the Hat tracing system for Haskell. . pp. 6-11. Tech. Report YCS-2005-395, Dept. of Computer Science, University of York, UK (KAR id:14245)

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Abstract

We outline two methods for locating bugs in a program. This is done by comparing computations of the same program with different input. At least one of these computations must produce a correct result, while exactly one must exhibit some erroneous behaviour. Firstly reductions that are thought highly likely to be correct are eliminated from the search for the bug. Secondly, a program slicing technique is used to identify areas of code that are likely to be correct. Both methods have been implemented. In combination with algorithmic debugging they provide a system that quickly and accurately identifies bugs.

Item Type:	Conference or workshop item (UNSPECIFIED)
Uncontrolled keywords:	Debugging, Tracing, Haskell, Hat
Subjects:	Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Institutional Unit:	Schools > School of Computing
Former Institutional Unit:	Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User:	Olaf Chitil
Date Deposited:	24 Nov 2008 18:02 UTC
Last Modified:	20 May 2025 10:04 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/14245 (The current URI for this page, for reference purposes)

University of Kent Author Information

Davie, Thomas.

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CReDIT Contributor Roles:

Chitil, Olaf.

Creator's ORCID:	https://orcid.org/0000-0001-7986-9929
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