id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
14581 GLPK incorrectly handles zero bounds novoselt ncohen "{{{
sage: P = MixedIntegerLinearProgram()
sage: x = P[""x""]
sage: P.set_max(x, 0)
sage: print P.get_max(x)
None
}}}
The problem is that GLPK backend has `value = False` default parameter with a test `value == False` later on and zero is equal to false. `None` has to be used instead!" defect closed major sage-6.1 linear programming fixed Nathann Cohen Volker Braun N/A u/ncohen/14581 6789698aa1905f5d531df707e455e62a651913f4