Method empty

include/reflex/pattern.h:310–314

Return true if this pattern is not assigned.

  }
  /// Return true if this pattern is not assigned.
  bool empty() const
    /// @return true if this pattern is not assigned
  {
    return opc_ == NULL && fsm_ == NULL;
  }
  /// Get subpattern regex of this pattern object or the whole regex with index 0.
  const std::string operator[](Accept choice) const
    /// @returns subpattern string or "" when not set