CVSROOT: /cvs/ppl Module name: ppl Changes by: zaffanella at cs.unipr.it 2008-08-18 13:46:30 Modified files: src : Linear_System.cc Log message: In method back_substitute(), avoid assuming that x.num_rows() >= 1. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/Linear_System.cc.diff?cvsroot=ppl&r1=1.50&r2=1.51