Proposed Amendment to Proposed American Standard on Specification for General-Purpose Paper Cards for Information Processing

A n y va r i ab le , a r r a y e l e m e n t , or f u n c t i o n r e f e r enced as a p r i m a r y in a n exp re s s ion a n d a n y s u b r o u t i n e r e f e r enced b y a C A L L s t a t e m e n t m u s t be def ined a t t h e t i m e of t h i s use . I n t h e case where a n a c t u a l a r g u m e n t in t h e a r g u m e n t l i s t of an e x t e r n a l p ro cedure r e fe rence is a v a r i a b l e n a m e or a n a r r a y e l e m e n t n a m e , t h i s in i t se l f is n o t a r e q u i r e m e n t t h a t t h e e n t i t y be def ined a t t h e t i m e of t h e p r o c e d u r e re fe rence ; however , w h e n s u c h a n a r g u m e n t is a n e x t e r n a l p r o c e d u r e n a m e , i t m u s t be def ined. A n y v a r i a b l e u s e d as a n in i t i a l va lue , t e r m i n a l va lue , or incre m e n t a t i o n v a l u e of a D O s t a t e m e n t or a D O i m p l i e d l i s t m u s t be def ined a t t h e t i m e of t h i s use. A n y v a r i a b l e u s e d to i d e n t i f y a n i n p u t / o u t p u t u n i t m u s t be def ined a t t h e t i m e of t h i s use. A t t h e t i m e of e x e c u t i o n of a R E T U R N s t a t e m e n t in a f u n c t i o n s u b p r o g r a m , t h e v a l u e (8.3.1) of t h a t f u n c t i o n m u s t be def ined. A t t h e t i m e of e x e c u t i o n of a n o u t p u t s t a t e m e n t , e v e r y e n t i t y whose v a l u e is to be t r a n s f e r r e d to t h e o u t p u t m e d i u m m u s t be def ined un l e s s t h e o u t p u t is u n d e r con t ro l of a f o r m a t spec i f ica t ion a n d t h e c o r r e s p o n d i n g conve r s i on code is A. I f t h e o u t p u t is u n d e r con t ro l of a f o r m a t spec i f ica t ion , a co r rec t a s s o c i a t i o n of conve r s ion code w i t h t y p e of e n t i t y is r e q u i r e d un le s s t h e c o n v e r s i o n code is A. T h e fo l lowing are t h e cor rec t a s s o c i a t i o n s : I w i t h i n t ege r ; D w i t h doub le p rec i s ion ; E , F , a n d G w i t h real a n d complex ; a n d L w i t h logical . def ined on t h e second level a t t h e t i m e of t h i s use . A n y va r i ab l e , a r r a y e l e m e n t , or f u n c t i o n r e f e r en ced as a p r i m a r y in a n exp re s s ion a n d a n y s u b r o u t i n e r e f e r en ced b y a C A L L s t a t e m e n t m u s t be def ined a t t h e t i m e of t h i s use . I n t h e case where an a c t u a l a r g u m e n t in t h e a r g u m e n t l i s t of a n e x t e r n a l p r o c e d u r e r e fe rence is a v a r i a b l e n a m e or a n a r r a y e l e m e n t n a m e , t h i s in i t se l f is n o t a r e q u i r e m e n t t h a t t h e e n t i t y be def ined a t t h e t i m e of t h e p r o c e d u r e re fe rence .