Unable to use IN to search an array in a fcmp function-CodePudding

I have an fcmp function with an array, but the IN operator doesn't seem to work. What am I doing wrong?

proc fcmp outlib=mylib.UserFuncLib.dateFuncs;
function previousWorkingDayDate(dateWeekday);
    * Not a weekend and not a bank holiday;
    dayBefore = intnx('Day',dateWeekday,-1);

    * Array of bank holidays, needs to be kept updated;
    array bankHolidays[9] / nosymbols 
        ('03Jan2022'd '15Apr2022'd '18Apr2022'd '02May2022'd 
            '02Jun2022'd '03Jun2022'd '29Aug2022'd '26Dec2022'd 
            '27Dec2022'd );

    do while ((dayBefore in bankHolidays) or weekday(dayBefore) < 2 or weekday(dayBefore) > 6);
        dayBefore = intnx('Day',dateWeekday,-1);
    end;
    return(dayBefore);
endsub;

The code dayBefore in bankHolidays gives ERROR 79-322: Expecting a (.

Help! Thanks.

CodePudding user response：

I think this just is a case of a SAS syntax that isn't supported in FCMP. In fact, I think SAS knows this... when I change it slightly to include the parentheses, the error message is telling:

  80             do while ((dayBefore in (bankHolidays) or weekday(dayBefore) < 2 or weekday(dayBefore) > 6));
 ERROR: The array 'bankHolidays' cannot be an argument of the 'IN' operation.

From the FCMP Documentation, I think this is more explicitly stated:

The ARRAY statement that is used in PROC FCMP does not support all the features of the ARRAY statement in the DATA step. Here is a list of differences that apply only to PROC FCMP:

All array references must have explicit subscript expressions.

You could solve this a few different ways; simplest is just to iterate over it (or even write another FCMP function that does that for you), or use a macro variable.

If you're really set on trying to do this, you might ask SAS directly (support @ sas.com) and see if they can give you a definitive answer on whether there is a direct way to do this.