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Exactly, Terry - you'd need a separate function for each data type. Until and if RPG gets overloading, we have to do that.

We have done this with a couple things - there is an IIF function in VB, and we have written and IIFS and and IIFN - for strings and numerics. It would not be horrible to do the same with an IN() function.

And you couldn't do this inline very well, unless you prescribe a limit on the number of values to test. Because we really can't define unspecified numbers of values, as you can in C. But you could have it so that only the value to test and the first comparison value are required - the rest could be *NOPASS.

OK - time for real work!!

Vern

Terrence Enger wrote:
On Thu, 2010-03-04 at 15:04 -0600, Vern Hamberg wrote:
Boy, I wonder if it weren't possible to write and IN() function in RPG. Maybe pass in the variable you are testing and have an array of the values to test, use some way to vary the count, and return an indicator. Woohoo!!!

I think that the best you can do is a function working for one type, and
only allowing up to some fixed maximum number of values to test.

Meanwhile, and expression like "0 < %lookup( ... )" can sometimes
approximate what you want. Of course, sometimes you would rather have
the test values manifest in-line.

Cheers,
Terry.



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