URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=fa2e479513ed8... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 16:00:22 2010 +0100

PIP_Solution_Node: use two-argument add_zero_columns() in update_tableau() method.

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=372e574ca99bd... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:59:29 2010 +0100

Dense_Matrix: add two-argument add_zero_columns().

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=a9eb5d2e74da7... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:59:06 2010 +0100

Dense_Matrix: fix assertion in permute_columns().

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=c9300432feb8b... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:57:16 2010 +0100

Sparse_Matrix: add two-argument add_zero_columns().

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=52721116a3dd8... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:56:34 2010 +0100

Unlimited_Sparse_Row: add method add_zeroes_and_shift().

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=7e8eabade51ca... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:08:28 2010 +0100

PIP_Tree_Node: use the newer find_create() versions in compatibility_check().

URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=3d67a9ccb10f7... Author: Marco Poletti poletti.marco@gmail.com Date: Tue Mar 23 15:07:46 2010 +0100

Dense_Row: add other versions of find_create().