std::size_t operator()(const Predicate& predicate) const
{
boost::hash <std::string> hasher;
return hasher(predicate.name());
}
bool operator()(const Predicate& a, const std::string& b) const
{
return a.name() == b;
}
bool operator()(const std::string& a, const Predicate& b) const
{
return a == b.name();
}
bool operator()(const Predicate& a, const Predicate& b) const
{
return a.name() == b.name();
}