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xbexcept.h

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00001 /*  $Id: xbexcept.h,v 1.7 2003/08/16 19:59:39 gkunkel Exp $
00002 
00003     Xbase project source code
00004 
00005     This file contains definitions for xbase exceptions.
00006 
00007     Copyright (C) 1997  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         xdb-devel@lits.sourceforge.net
00037         xdb-users@lists.sourceforge.net
00038 
00039       See our website at:
00040 
00041         xdb.sourceforge.net
00042 */
00043 
00044 #ifndef __XBEXCEPT_H__
00045 #define __XBEXCEPT_H__
00046 
00047 #ifdef __GNUG__
00048 #pragma interface
00049 #endif
00050 
00051 #ifdef __WIN32__
00052 #include <xbase/xbconfigw32.h>
00053 #else
00054 #include <xbase/xbconfig.h>
00055 #endif
00056 
00057 #include <xbase/xtypes.h>
00058 
00062 const char *xbStrError(xbShort err);
00063 
00064 #ifndef HAVE_EXCEPTIONS
00065 #define xb_error(code) { return code;}
00066 #define xb_io_error(code,name) { return code;}
00067 #define xb_open_error(name) { return XB_OPEN_ERROR;}
00068 #define xb_memory_error { return XB_NO_MEMORY;}
00069 #define xb_eof_error { return XB_EOF;}
00070 #else
00071 
00072 #ifdef HAVE_EXCEPTION
00073 
00074 #include <exception>
00075 #elif HAVE_G___EXCEPTION_H
00076 #include <g++/exception.h>
00077 #else
00078 #error "Exceptions are unsupported on your system."
00079 #endif
00080 
00081 #ifdef __BORLANDC__
00082 #define XB_THROW throw ()
00083 using std::exception;
00084 #else
00085 #define XB_THROW
00086 #endif
00087 
00089 
00092 /* FIXME:   class exception is member of <stdexcept.h> -- willy */
00093 class XBDLLEXPORT xbException : public exception {
00094 public:
00095   xbException (int err);
00096   virtual ~xbException () XB_THROW;
00097   virtual const char* what() const XB_THROW;
00098   virtual const char *error();
00099   int getErr();
00100 private:
00101   int err;
00102 };
00103 
00104 #define xb_error(code) {throw xbException(code);return (code);}
00105 
00107 
00110 class XBDLLEXPORT xbIOException : public xbException {
00111 public:
00112   xbIOException (int err);
00113   xbIOException (int err, const char *n);
00114   virtual ~xbIOException () XB_THROW;
00115   virtual const char* what() const XB_THROW;
00116   const char *_errno() const;
00117   const char *name;
00118 protected:
00119   int m_errno;
00120 };
00121 
00122 #define xb_io_error(code, name) {throw xbIOException(code,name);return (code);}
00123 
00125 
00128 class XBDLLEXPORT xbOpenException : public xbIOException {
00129 public:
00130   xbOpenException ();
00131   xbOpenException (const char *n);
00132   virtual ~xbOpenException () XB_THROW;
00133   virtual const char* what() const XB_THROW;
00134 };
00135 
00136 #define xb_open_error(name) { throw xbOpenException(name); return 0;}
00137 
00139 
00142 class XBDLLEXPORT xbOutOfMemoryException : public xbException {
00143 public:
00144   xbOutOfMemoryException ();
00145   virtual ~xbOutOfMemoryException () XB_THROW;
00146   virtual const char* what() const XB_THROW;
00147 };
00148 
00149 #define xb_memory_error {throw xbOutOfMemoryException();return 0;}
00150 
00152 
00155 class XBDLLEXPORT xbEoFException : public xbIOException {
00156 public:
00157   xbEoFException ();
00158   virtual ~xbEoFException () XB_THROW;
00159   virtual const char* what() const XB_THROW;
00160 };
00161 
00162 #define xb_eof_error {throw xbEoFException();return 0;}
00163 
00164 #endif
00165 
00166 #endif // __XBEXCEPT_H__

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