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"""
The goal of this file is to test cython can use pplpy package properly
In order to do this we do some test with objects from each packages and extension :
ppl
ppl.linear_algebra
ppl.linear_algebra
ppl.constraint
ppl.mip_problem
"""
from ppl.linear_algebra cimport Variable
from ppl.constraint cimport Constraint_System
from ppl.mip_problem cimport MIP_Problem
from ppl.polyhedron cimport C_Polyhedron
def test():
x = Variable(0)
y = Variable(1)
cs = Constraint_System()
cs.insert( x >= 0)
cs.insert( y >= 0 )
cs.insert( 3 * x + 5 * y <= 10 )
m = MIP_Problem(2, cs, x + y)
m.objective_function()
from ppl import C_Polyhedron
C_Polyhedron( 5*x-2*y >= x+y-1 )
print("-"*80)
print("Cython test 2 OK")
print("-"*80)
def example():
"Cython version of the example from the README"
cdef Variable x = Variable(0)
cdef Variable y = Variable(1)
cdef Variable z = Variable(2)
cdef Constraint_System cs = Constraint_System()
cs.insert(x >= 0)
cs.insert(y >= 0)
cs.insert(x + y + z == 1)
cdef C_Polyhedron poly = C_Polyhedron(cs)
print(poly.minimized_generators())
print('dim = %lu' % poly.thisptr.space_dimension())
print("-"*80)
print("Cython example 2 OK")
print("-"*80)
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