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/// \file model/exceptions.hpp
/// Exception types raised by the model module.
///
/// There is no model/exceptions_fwd.hpp counterpart because this file is
/// inteded to be used only from within .cpp files to either raise or
/// handle raised exceptions, neither of which are possible with just
/// forward declarations.

#if !defined(MODEL_EXCEPTIONS_HPP)
#define MODEL_EXCEPTIONS_HPP

#include <stdexcept>

namespace model {


/// Base exception for model errors.
class error : public std::runtime_error {
public:
    explicit error(const std::string&);
    virtual ~error(void) throw();
};


/// Error while parsing external data.
class format_error : public error {
public:
    explicit format_error(const std::string&);
    virtual ~format_error(void) throw();
};


/// A requested element could not be found.
class not_found_error : public error {
public:
    explicit not_found_error(const std::string&);
    virtual ~not_found_error(void) throw();
};


}  // namespace model

#endif  // !defined(MODEL_EXCEPTIONS_HPP)
