On 08/25/11 18:47, Van Snyder wrote: > If you change your main program to > > PROGRAM MAIN > X = T() > END > > then a value is not computed for T. Yes, an assignment statement > appears in the function, but it doesn't get executed, so no value for > the function result variable is defined. > Yes, I can change the program so that it is not standard conforming. Robert Corbett