revision only checked the KKT conditions for the problem in standard form
- added simple (and inefficient) class Bnd that represents a possibly infinite
bound; the class is used in the validity check
slack variable
- fixed bug in which the partial pricing called mu_j(j) for a variable j which
is basic (the reason is that the active set MAY contain basic variables;
these were priced in previous revisions)
- fixed bug in is_solution_optimal_for_auxiliary_problem() where in case of
a slack variable tau_aux was not incremented but set (= instead of +=)
- fixed bug in is_solution_optimal_for_auxiliary_problem() in which the special
artificial variable was not ignored even if it droped down to zero (and
therefore MUST be ignored)
- fixed bug in update_1() where feasibiliy does not always hold (in theory, it
does, but as documented, is_solution_feasible() need not return true); now
the assertion is only checked at certain times
- fixed several typos in comments
Kaspar Fischer
Laurent Saboret