CVSROOT: /cvs/ppl Module name: ppl Branch: grids Changes by: mundell@cs.unipr.it 2005-05-06 11:37:08 Modified files: src : Grid_simplify.cc Grid_conversion.cc Log message: Use new method Congruence_System::is_congruence. Update parameter reduction to make all following rows virtual if the first row turns out to be virtual or a line. Update congruence reduction to make the first row the integrality congruence if the resulting grid is empty. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/Grid_simplify.cc.diff?cvsr... http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/Grid_conversion.cc.diff?cv...