Re: Catching Exceptions - Ben Clewett - com.mysql.lists.plusplus

9 messages in com.mysql.lists.plusplusRe: Catching Exceptions

From	Sent On	Attachments
Adam Clauss	26 May 2003 16:31
Ben Clewett	27 May 2003 00:42
Markus Gerwinski	27 May 2003 00:59
Murr...@Comneon.com	27 May 2003 01:16
Markus Gerwinski	27 May 2003 01:38
Murr...@Comneon.com	27 May 2003 01:46
Adam Clauss	27 May 2003 11:17
Sinisa Milivojevic	28 May 2003 03:52
Warren Young	28 May 2003 09:05

Subject:	Re: Catching Exceptions
From:	Ben Clewett (B.Cl...@roadrunner.uk.com)
Date:	05/27/2003 12:42:43 AM
List:	com.mysql.lists.plusplus

It may not be related, but in this version I cannot get exceptions for work either.

But in my case, the application drops a core when an exception is thrown. Unfortunatelly my skills are not up to explaining why or where. I can tell you it happens on all the example programs given, (eg, simple1) and happens whether the --enable-exception flag is set or not. Using a debugger, I can tell you it might be happening either on creation of the exception, or automatic deletion of this when the 'return -1' is called. If an exception is not thrown, MySQL and the applications work without fault.

Ben

Adam Clauss wrote:

I'm using the C++ API for Visual Studio. When errors occur during connection, executing queries, etc, it throws a MysqlBadQuery exception. I can see when I run it that is the exact type being thrown. However, despite my best efforts, I can't seem to actually catch it. Connection con; bool result = false; try { result = con.connect("test2"); } catch (MysqlBadQuery *ex) { printf("error!"); }

I always get: Unhandled exception at 0x77e73887 (kernel32.dll) in testsql.exe: Microsoft C++ exception: MysqlBadQuery @ 0x0012f9f4.

The exception is being thrown because the specified database (test2) does not exist - so I know it is right in that the exception is being thrown... But I can't figure out why it won't let me catch it!