NVIDIA-GPU-Bootcamp-Training/ai/Distributed_Deep_Learning/English/python/source_code/N2/Common/exception.h

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/* CUda UTility Library */
#ifndef COMMON_EXCEPTION_H_
#define COMMON_EXCEPTION_H_

// includes, system
#include <stdlib.h>
#include <exception>
#include <iostream>
#include <stdexcept>
#include <string>

//! Exception wrapper.
//! @param Std_Exception Exception out of namespace std for easy typing.
template <class Std_Exception>
class Exception : public Std_Exception {
 public:
  //! @brief Static construction interface
  //! @return Alwayss throws ( Located_Exception<Exception>)
  //! @param file file in which the Exception occurs
  //! @param line line in which the Exception occurs
  //! @param detailed details on the code fragment causing the Exception
  static void throw_it(const char *file, const int line,
                       const char *detailed = "-");

  //! Static construction interface
  //! @return Alwayss throws ( Located_Exception<Exception>)
  //! @param file file in which the Exception occurs
  //! @param line line in which the Exception occurs
  //! @param detailed details on the code fragment causing the Exception
  static void throw_it(const char *file, const int line,
                       const std::string &detailed);

  //! Destructor
  virtual ~Exception() throw();

 private:
  //! Constructor, default (private)
  Exception();

  //! Constructor, standard
  //! @param str string returned by what()
  explicit Exception(const std::string &str);
};

////////////////////////////////////////////////////////////////////////////////
//! Exception handler function for arbitrary exceptions
//! @param ex exception to handle
////////////////////////////////////////////////////////////////////////////////
template <class Exception_Typ>
inline void handleException(const Exception_Typ &ex) {
  std::cerr << ex.what() << std::endl;

  exit(EXIT_FAILURE);
}

//! Convenience macros

//! Exception caused by dynamic program behavior, e.g. file does not exist
#define RUNTIME_EXCEPTION(msg) \
  Exception<std::runtime_error>::throw_it(__FILE__, __LINE__, msg)

//! Logic exception in program, e.g. an assert failed
#define LOGIC_EXCEPTION(msg) \
  Exception<std::logic_error>::throw_it(__FILE__, __LINE__, msg)

//! Out of range exception
#define RANGE_EXCEPTION(msg) \
  Exception<std::range_error>::throw_it(__FILE__, __LINE__, msg)

////////////////////////////////////////////////////////////////////////////////
//! Implementation

// includes, system
#include <sstream>

////////////////////////////////////////////////////////////////////////////////
//! Static construction interface.
//! @param  Exception causing code fragment (file and line) and detailed infos.
////////////////////////////////////////////////////////////////////////////////
/*static*/ template <class Std_Exception>
void Exception<Std_Exception>::throw_it(const char *file, const int line,
                                        const char *detailed) {
  std::stringstream s;

  // Quiet heavy-weight but exceptions are not for
  // performance / release versions
  s << "Exception in file '" << file << "' in line " << line << "\n"
    << "Detailed description: " << detailed << "\n";

  throw Exception(s.str());
}

////////////////////////////////////////////////////////////////////////////////
//! Static construction interface.
//! @param  Exception causing code fragment (file and line) and detailed infos.
////////////////////////////////////////////////////////////////////////////////
/*static*/ template <class Std_Exception>
void Exception<Std_Exception>::throw_it(const char *file, const int line,
                                        const std::string &msg) {
  throw_it(file, line, msg.c_str());
}

////////////////////////////////////////////////////////////////////////////////
//! Constructor, default (private).
////////////////////////////////////////////////////////////////////////////////
template <class Std_Exception>
Exception<Std_Exception>::Exception() : Std_Exception("Unknown Exception.\n") {}

////////////////////////////////////////////////////////////////////////////////
//! Constructor, standard (private).
//! String returned by what().
////////////////////////////////////////////////////////////////////////////////
template <class Std_Exception>
Exception<Std_Exception>::Exception(const std::string &s) : Std_Exception(s) {}

////////////////////////////////////////////////////////////////////////////////
//! Destructor
////////////////////////////////////////////////////////////////////////////////
template <class Std_Exception>
Exception<Std_Exception>::~Exception() throw() {}

  // functions, exported

#endif  // COMMON_EXCEPTION_H_