Method Opt

Bcore/src/main/cpp/Dobby/tests/catch.hpp:5960–5961

public:
  template <typename LambdaT>
  explicit Opt(LambdaT const &ref) : ParserRefImpl(std::make_shared<BoundFlagLambda<LambdaT>>(ref)) {
  }

  explicit Opt(bool &ref) : ParserRefImpl(std::make_shared<BoundFlagRef>(ref)) {
  }