7.5 Comments

OCL expressions can contain comments . An OCL line comment begins with two hyphens. All text from the hyphens to the end of the line is considered to be a comment. Comments longer than one line may be enclosed between /* and */. For example, the following lines contain valid OCL expressions:

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 -- the expression 20 * 5 + 4 should be evaluated here 20 * 5 + 4 -- this is a comment /* this is a very long comment that does not enlighten the reader one bit about what the  expression is really about */ 

The following line is not a valid OCL expression:

 20 * -- this is a comment 5 + 4