Proposal: new error return code for unprocessed options

[Tim Tautges]

Hi all,
   In the current interface, the load and save functions allow the application to pass in options in the form of a 
string.  However, there is no way for the implementation to let the application know that some of those options were not 
interpreted.  The only recourse is to not indicate an error, or to pass back a generic failure.  Since options should be 
optional, a generic failure is not sufficient.  Therefore:

Proposal: Add a new error code "iBase_OPTION_NOT_PROCESSED"

Behavior:
If one of the options in the option string passed to any iMesh or iGeom functions are not interpreted by the 
implementation, this error type is returned.  The list of options not processed should appear in the error string, which 
can be retrieved using the getDescription function.

Motivation:
Allows implementations to not interpret options passed by the application, and allows application to decide whether to 
fail or not when this occurs.

- tim

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"You will keep in perfect peace him whose mind is
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              Tim Tautges            Argonne National Laboratory
          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
          phone: (608) 263-8485      1500 Engineering Dr.
            fax: (608) 263-4499      Madison, WI 53706