friend
void interact (const flowing_particle& particle1,
const flowing_particle& particle2,
interaction_type& state)
{
if (abs_1(particle1.position - particle2.position) <= 1)
state.set_merge();
}
friend interaction::result_type
interact(const flowing_particle& particle1,
const flowing_particle& particle2)
{
if (abs_1(particle1.position - particle2.position) <= 1)
return interaction::MERGE;
else
return interaction::NONE;
}
void test_1() {
boost::shared_ptr<Implementor> imp1(boost::make_shared<SubImplementor1>());
assert(imp1);
boost::shared_ptr<Abstractor> abs_1(boost::make_shared<SubAbstrator>(imp1));
assert(abs_1);
abs_1->operation();
boost::shared_ptr<Implementor> imp2(boost::make_shared<SubImplementor2>());
assert(imp2);
boost::shared_ptr<Abstractor> abs_2(boost::make_shared<SubAbstrator>(imp2));
assert(abs_2);
abs_2->operation();
}