SAS/IML error handling

[MDaniel]

I am loogin at implementing a generic process of error handling on all the IML scripts we run in our company. Ideally, it would be something like this:

%LET IsIMLError = 0; /* flag that is set to 1 in case if an error */

proc iml;

OnError do;  /* is this somehow possible? */
   %LET IsIMLError = 1; 
   write_error_to_text_file; /* pseudo-code */
   ABORT;
end;

/* IML code goes here*/

quit;

The idea is to always trigger the error handling section whenever an error appears, no matter the nature of the error. Right now I can't figure out if the 'OnError' event exists in SAS/IML (or something with similar functionality). Any hints?

[Rick_SAS]

Read the doc chapter "Generating and Executing Statements", which has two sections on error handling. 

Be sure you are also familiar with the ways to handle run-time errors in modules.

If I may offer some advice: Whenever possible, it is better, easier, and cleaner to detect and handle SAS/IML errors BEFORE they occur. This is different than the try/catch paradigm in some other languages.