exception.hpp

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#ifndef VIENNASHE_MODELS_MARKOVCHAIN_EXCEPTION_HPP
#define VIENNASHE_MODELS_MARKOVCHAIN_EXCEPTION_HPP
/* ============================================================================
   Copyright (c) 2011-2022, Institute for Microelectronics,
                            Institute for Analysis and Scientific Computing,
                            TU Wien.
 
                            -----------------
     ViennaSHE - The Vienna Spherical Harmonics Expansion Boltzmann Solver
                            -----------------
 
                    http://viennashe.sourceforge.net/
 
   License:         MIT (X11), see file LICENSE in the base directory
=============================================================================== */
 
#include <stdexcept>
#include <sstream>
#include "viennashe/models/exception.hpp"
 
 
namespace viennashe
{
  namespace models
  {
 
    class invalid_state_exception : public std::runtime_error
    {
      public:
        invalid_state_exception(std::string const & str)
            : std::runtime_error(str), msg_(""), index_(0), msgcache_("") { }
 
        virtual const char* what() const throw() { return this->msgcache_.c_str(); }
 
        invalid_state_exception(std::string msg, std::size_t index)
            : std::runtime_error(msg), msg_(msg), index_(index)
         { this->fill_message(); }
 
        virtual ~invalid_state_exception() throw() {}
 
    private:
 
      void fill_message()
      {
        std::stringstream ss;
        ss << "* Models: invalid state '" << index_ << "' does not exist or is malconfigured, i.e. state.occupancy() > 1.0 or state.occupancy() < 0 !";
        ss << "  Message: '" << msg_ << "'";
        this->msgcache_ = ss.str();
      }
 
      std::string msg_;
      std::size_t index_;
      std::string msgcache_;
    };
 
  } // namespace models
} // namespace viennashe
 
#endif /* VIENNASHE_MODELS_MARKOVCHAIN_EXCEPTION_HPP */