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xbexcept.h

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00001 /*  $Id: xbexcept.h,v 1.6 2000/11/10 19:04:17 dbryson Exp $
00002 
00003     Xbase project source code
00004 
00005     This file contains definitions for xbase exceptions.
00006 
00007     Copyright (C) 1997  StarTech, Gary A. Kunkel   
00008 
00009     This library is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU Lesser General Public
00011     License as published by the Free Software Foundation; either
00012     version 2.1 of the License, or (at your option) any later version.
00013 
00014     This library is distributed in the hope that it will be useful,
00015     but WITHOUT ANY WARRANTY; without even the implied warranty of
00016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017     Lesser General Public License for more details.
00018 
00019     You should have received a copy of the GNU Lesser General Public
00020     License along with this library; if not, write to the Free Software
00021     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 
00023     Contact:
00024 
00025       Mail:
00026 
00027         Technology Associates, Inc.
00028         XBase Project
00029         1455 Deming Way #11
00030         Sparks, NV 89434
00031         USA
00032 
00033       Email:
00034 
00035         xbase@techass.com
00036 
00037       See our website at:
00038 
00039         xdb.sourceforge.net
00040 */
00041 
00042 #ifndef __XBEXCEPT_H__
00043 #define __XBEXCEPT_H__
00044 
00045 #ifdef __GNUG__
00046 #pragma interface
00047 #endif
00048 
00049 #ifdef __WIN32__
00050 #include <xbase/xbconfigw32.h>
00051 #else
00052 #include <xbase/xbconfig.h>
00053 #endif
00054 
00055 #include <xbase/xtypes.h>
00056 
00060 const char *xbStrError(xbShort err);
00061 
00062 #ifndef HAVE_EXCEPTIONS
00063 #define xb_error(code) { return code;}
00064 #define xb_io_error(code,name) { return code;}
00065 #define xb_open_error(name) { return XB_OPEN_ERROR;}
00066 #define xb_memory_error { return XB_NO_MEMORY;}
00067 #define xb_eof_error { return XB_EOF;}
00068 #else
00069 
00070 #ifdef HAVE_EXCEPTION
00071 
00072 #include <exception>
00073 #elif HAVE_G___EXCEPTION_H
00074 #include <g++/exception.h>
00075 #elif
00076 #error "Exceptions are unsupported on your system."
00077 #endif
00078 
00079 #ifdef __BORLANDC__
00080 #define XB_THROW throw ()
00081 using std::exception;
00082 #else
00083 #define XB_THROW
00084 #endif
00085 
00087 
00090 /* FIXME:   class exception is member of <stdexcept.h> -- willy */
00091 class XBDLLEXPORT xbException : public exception {
00092 public:
00093   xbException (int err);
00094   virtual ~xbException () XB_THROW;
00095   virtual const char* what() const XB_THROW;
00096   virtual const char *error();
00097   int getErr();
00098 private:
00099   int err;
00100 };
00101 
00102 #define xb_error(code) {throw xbException(code);return (code);}
00103 
00105 
00108 class XBDLLEXPORT xbIOException : public xbException {
00109 public:
00110   xbIOException (int err);
00111   xbIOException (int err, const char *n);
00112   virtual ~xbIOException () XB_THROW;
00113   virtual const char* what() const XB_THROW;
00114   const char *_errno() const;
00115   const char *name;
00116 protected:
00117   int m_errno;
00118 };
00119 
00120 #define xb_io_error(code, name) {throw xbIOException(code,name);return (code);}
00121 
00123 
00126 class XBDLLEXPORT xbOpenException : public xbIOException {
00127 public:
00128   xbOpenException ();
00129   xbOpenException (const char *n);
00130   virtual ~xbOpenException () XB_THROW;
00131   virtual const char* what() const XB_THROW;
00132 };
00133 
00134 #define xb_open_error(name) { throw xbOpenException(name); return 0;}
00135 
00137 
00140 class XBDLLEXPORT xbOutOfMemoryException : public xbException {
00141 public:
00142   xbOutOfMemoryException ();
00143   virtual ~xbOutOfMemoryException () XB_THROW;
00144   virtual const char* what() const XB_THROW;
00145 };
00146 
00147 #define xb_memory_error {throw xbOutOfMemoryException();return 0;}
00148 
00150 
00153 class XBDLLEXPORT xbEoFException : public xbIOException {
00154 public:
00155   xbEoFException ();
00156   virtual ~xbEoFException () XB_THROW;
00157   virtual const char* what() const XB_THROW;
00158 };
00159 
00160 #define xb_eof_error {throw xbEoFException();return 0;}
00161 
00162 #endif
00163 
00164 #endif // __XBEXCEPT_H__

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