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rCADDMESH/cpp/road/RoadError.h
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RoadError.h
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/****************************************************************************
**
** Copyright (C) 2008-2010 C.B. Barber. All rights reserved.
** $Id: //product/qhull/main/rel/cpp/road/RoadError.h#23 $$Change: 1193 $
** $DateTime: 2010/01/23 11:31:35 $$Author: bbarber $
**
****************************************************************************/
#ifndef ROADERROR_H
#define ROADERROR_H
#include "RoadLogEvent.h"
#include <iostream>
#include <sstream>
#include <stdexcept>
#include <string>
using std::endl;
namespace orgQhull {
#//Types
//! RoadError -- Report and log errors
//! See discussion in Saylan, G., "Practical C++ error handling in hybrid environments," Dr. Dobb's Journal, p. 50-55, March 2007.
//! He uses an auto_ptr to track a stringstream. It constructs a string on the fly. RoadError uses the copy constructor to transform RoadLogEvent into a string
class RoadError;
class RoadError : public std::exception {
private:
#//Fields
int error_code; //! Non-zero code (not logged), maybe returned as program status
RoadLogEvent log_event; //! Format string w/ arguments
mutable std::string error_message; //! Formated error message. Must be after log_event.
#//Class fields
static const char * ROADtag;
static std::ostringstream global_log; //! May be replaced with any ostream object
public:
#//Constants
#//Constructors
RoadError();
RoadError(const RoadError &e); //! Called on throw, generates error_message
RoadError(int code, const std::string &message);
RoadError(int code, const char *fmt);
RoadError(int code, const char *fmt, int d);
RoadError(int code, const char *fmt, int d, int d2);
RoadError(int code, const char *fmt, int d, int d2, float f);
RoadError(int code, const char *fmt, int d, int d2, float f, const char *s);
RoadError(int code, const char *fmt, int d, int d2, float f, const void *x);
RoadError(int code, const char *fmt, int d, int d2, float f, int i);
RoadError(int code, const char *fmt, int d, int d2, float f, long long i);
RoadError(int code, const char *fmt, int d, int d2, float f, double e);
RoadError &operator=(const RoadError&);
~RoadError() throw() {};
#//Class methods
static void clearGlobalLog() { global_log.seekp(0); }
static bool emptyGlobalLog() { return global_log.tellp()<=0; }
static const char *stringGlobalLog() { return global_log.str().c_str(); }
#//Virtual
virtual const char *what() const throw();
#//GetSet
bool defined() const { return log_event.defined(); }
int errorCode() const { return error_code; };
// FIXUP QH11021 should RoadError provide errorMessage(). Currently what()
RoadLogEvent roadLogEvent() const { return log_event; };
#//Update
void logError() const;
};//class RoadError
}//namespace orgQhull
#//Global functions
inline std::ostream &operator<<(std::ostream &os, const orgQhull::RoadError &e) { return os << e.what(); }
#endif // ROADERROR_H
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