Dear Prof. Roberto Bagnara,

I am Pham Diep Chi, a PhD student from Viet Nam. I use PPL for my thesis research. I would like to ask you some question on PPL

I would like to print value of constraints (Constraint_System, C_Polyhedron, ...) on terminal, and i use print function but it does not show anything.

For example:

i have Constraint_System cs, C_Polyhedron ph;

i use print: cs.print(); ph.print();

they does not show their values on terminal (i use ubuntu OS);

I try to use function: print_constraints() as you use in examples codes, but i always get error.

Could you explain for me and give me a suggestion to print the values of constraint on terminal please?

Beside, Can i convert the value of contraint to string (text) and inverse?

for example i have a constraint has value : a + b >=5 i would like to convert it to "a+b >=5". How do i convert like that.

Thank you very much for your time and i look forward to hearing from you soon.

Best regards,

Diep Chi