CVSROOT: /cvs/ppl Module name: ppl Changes by: zaffanella@cs.unipr.it 2008-10-19 16:20:21

Modified files: doc : definitions.dox

Log message: Some improvements in the specification of syntactic GDs: 1) the generic ones are those that are supported (maybe minimally) by all semantic GDs; the specific ones are not supported at all by some semantic GDs; 2) listed subclasses of generic GDs (constraints and congruences): explained that each semantic GD "optimally supports" some of these subclasses; for optimally supported subclasses, no exception is thrown and a best approximation semantics is obtained; for the non-optimally supported ones, exceptions or coarse approximations may be obtained. 3) noted that the best approximation property applies to single constraints or congruences, not to their systems. Other changes: - not all OK methods support the optional Boolean argument; - improved explanation of conversion operators with a computational complexity argument.

Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/doc/definitions.dox.diff?cvsro...