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looktypes.h

/* liblookdb: looktypes.h - Types library global things 
    Copyright (C) 1998-2001 LOOK Systems

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
#ifndef LIBLOOKDB_LOOKTYPES_H
#define LIBLOOKDB_LOOKTYPES_H

// $Id: looktypes.h,v 1.10 2001/07/04 15:53:22 clive Exp $

#include "lookcompileropts.h"
#include "string.h"

namespace look {

// dll things
#ifdef WIN32
#ifdef LOOKTYPES_BUILD
#define LOOKTYPES_DLL __declspec(dllexport)
#else
#define LOOKTYPES_DLL __declspec(dllimport)
#endif
#else
#define LOOKTYPES_DLL
#endif

// id's for our types and their pseudo-rtti
const long LookFloatID = 1;
const long LookStringID = 2;
const long LookIntegerID = 3;
const long LookMoneyID = 4;
const long LookDateID = 5;
const long LookTimeID = 6;
const long LookDateTimeID = 7;
const long LookNULLValueID = 8;
const long LookLongStringID = 9;  // this isn't a real type, but it is used
                                  // for db communication
const long LookNumericID = 10;
const long LookRawDataID = 11;
const long LookLongRawDataID = 12; // like looklongstringid

// exceptions we can throw

class LOOKTYPES_DLL LookException
{
public:

        // the char* is a lightweight string.

        LookException( int theErrorNumber, const char* theMessage )
                : itsErrorNumber( theErrorNumber )
        {
                itsMessage = new char[strlen(theMessage)+1];
                strcpy( itsMessage, theMessage );
        }
        
        ~LookException()
        {
                delete [] itsMessage;
        }

        LookException( const LookException& theOther )
                : itsErrorNumber( theOther.itsErrorNumber )
        {
                itsMessage = new char[strlen(theOther.itsMessage)+1];
                strcpy( itsMessage, theOther.itsMessage );
        }

        LookException& operator=( const LookException& theOther )
        {
                itsErrorNumber = theOther.itsErrorNumber;
                delete [] itsMessage;

                itsMessage = new char[strlen(theOther.itsMessage)+1];
                strcpy( itsMessage, theOther.itsMessage );

                return *this;
        }

        int itsErrorNumber;
        char* itsMessage;
};

// our error numbers
// negatives are for application
// Look Types library is 0-999
const int sprintfError = 1;

// blocks for other libraries
// Look db library                       1000-1999
// gte database library                  2000-2999
// gte gui library                       3000-3999
// db streams library                    4000-4999


} // end of "look" namespace
#endif

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