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 Error codes in try-catch statements		  New Topic  Reply to Topic
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Alex-qwerty

Russia
Posts
Posted - 10/02/2010 :  09:56:40 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin 8.1 SR3; WinXP

I use try/catch wrapping for calling some NAG functions.
try 
{
    nag_opt_simplex ( ... );
}
catch(int nErr) 
{ 
    printf("nErr = %i \n",  nErr);
}

Where can I find the meaning of error values (nErr)?

Penn

China
644 Posts
Posted - 10/08/2010 :  01:34:44 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

All NAG functions accept one argument, NagError structure. This structure is used to test whether the NAG function is executing successfully or not. So you can use this structure instead, but not the try/catch. Please refer to this example.

Penn
Edited by - Penn on 10/08/2010 02:57:04 AM
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Alex-qwerty

Russia
Posts
Posted - 10/08/2010 :  4:30:33 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I know about NagError.
But sometimes it is useless. It has correct error code if there was NO exception. Sometimes my project crashes without try/catch statement. Try/catch allows to keep project alive. Try/catch return error code (288), but I don't know the meaning of thise code.
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Penn

China
644 Posts
Posted - 10/09/2010 :  02:27:48 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

It is about the parameter, which is a pointer to Nag_E04_Opt structure. It is not safe to pass the default pointer to this parameter. Please refer to this example on how to call this function.

Penn
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