[progress Communities] [progress Openedge Abl] Forum Post: Input-output Parameters

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Recently I found out that you can easily omit INPUT-OUTPUT option when you call a function or a method like that FUNCTION Func RETURNS CHARACTER PRIVATE ( INPUT-OUTPUT yyy AS CHARACTER ): END FUNCTION. Func(x). I think it's an awful thing in the language syntax. It makes the code VERY confusing because when you see F(X) you think X is immutable here but suddenly it turns out that it is mutable and it's a disaster! It's OpenEdge 11.5.

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