Starter exception classes for Insight

[Josh Cates]

Hello all,

Exception code is now available in the CVS repository:

 /Code/Common/itkExceptionObject.h
 /Code/Common/itkExceptionObject.cxx

and examples of its use:
 /Testing/Code/Common/itkExceptionObjectTest.cxx

These files provide an infrastructure for exception handling in Insight.

Here's the general idea: 
 1) a virtual base class ``itkExceptionObject'' that defines the interface
and the default implementation of an exception object
 2) subclasses that define the types of exceptions the Insight toolkit
will generate

I have not attempted to tackle item number 2, although I have provided
some plausible working examples.  At some point we will all need to
identify and agree on a set of basic error types to use.  

Documentation is provided in the code itself.  For more information, and
a discussion of classifying exceptions, see the paper
/Documents/itkehandle.pdf in the CVS repository.


Josh.


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 Josh Cates			
 Dept. of Electrical Engineering	
 University of Tennessee, Knoxville
 Email: jecates at utk.edu
 Phone: (865) 974-0694
 URL:   www.cs.utk.edu/~cates
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