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Class validation_error



// In header: <boost/program_options/errors.hpp>

class validation_error : public boost::program_options::error {

  enum kind_t { multiple_values_not_allowed =  30, 
                at_least_one_value_required, invalid_bool_value, 
                invalid_option_value, invalid_option };
  // construct/copy/destruct
  validation_error(kind_t, const std::string & = "", const std::string & = "");

  // public member functions
  void set_option_name(const std::string &);
  const std::string & get_option_name() const;
  const char * what() const;

  // protected static functions
  static std::string error_message(kind_t);


Class thrown when value of option is incorrect.

validation_error public construct/copy/destruct

  1. validation_error(kind_t kind, const std::string & option_value = "", 
                     const std::string & option_name = "");
  2. ~validation_error();

validation_error public member functions

  1. void set_option_name(const std::string & option);
  2. const std::string & get_option_name() const;
  3. const char * what() const;

validation_error protected static functions

  1. static std::string error_message(kind_t kind);

    Used to convert kind_t to a related error text