/**
 * @file     InfeasibleOrUnboundedProblem.h
 * @brief    Throw when the problem is either infeasible or unbounded
 * @author   Ivan Dario Jimenez
 * @date     1/24/16
 */


namespace gtsam {

class InfeasibleOrUnboundedProblem: public ThreadsafeException<
    InfeasibleOrUnboundedProblem> {
public:
  InfeasibleOrUnboundedProblem() {
  }
  virtual ~InfeasibleOrUnboundedProblem() throw () {
  }

  virtual const char* what() const throw () {
    if (description_.empty())
      description_ = "The problem is either infeasible or unbounded.\n";
    return description_.c_str();
  }

private:
  mutable std::string description_;
};
}