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Functional and Logic Programming, 2006, Vol.3945, p.192-207
Ort / Verlag
Berlin, Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2006
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Despite its simplicity, the size-change termination principle, presen- ted by Lee, Jones and Ben-Amram in [LJB01], is surprisingly strong and is able to show termination for a large class of programs. A significant limitation for its use, however, is the fact that the SCT requires data types to be well-founded, and that all mechanisms used to determine termination must involve decreases in these global, well-founded partial orders.
Following is an extension of the size-change principle that allows for non-well founded data types, and a realization of this principle for integer data types. The extended size-change principle is realized through combining abstract interpretation over the domain of convex polyhedra with the use of size-change graphs. In the cases when data types are well founded, the method handles every case that is handled by LJB size-change termination.
The method has been implemented in a subject language independent shared library, libesct (available at [Ave05a]), as well as for the ANSI C specializer C − MixII, handling a subset of its internal language Core-C.