Sharp PC-1403 - Page 145

1 39
W hen a nu m er i c ar r ay i s dime n si oned, a ll v a l ues a r e in i tia ll y s et t o zero ; in a stri ng
a r ray, th e values are set to nul l.
F o r th e array A and A$ D I M d ec l a r at i on , refer t o the par a gr a ph di sc u ssi n g va r iab l es.
In st r i ng arrays, o ne spec i fi e s the s iz e o f each string elem en t in add it i on t o the n um be r
of el em en ts. For ex a mple, DIM 8$ ( 3 ) * 12 r eserves spa c e for 4 s t ri n gs w h i c h a re ea c h
a m axi m um of 12 characters long . It t h e leng t h i s not s p ec ifi ed , e ach str i ng can co n tai n
a m aximum of 1 6 characters .
1 1 Mi
Except for ar r a y s i n th e f or m : A( ) , A$( ) , an d s i mp l e v ariable li k e A 1 o r 82$, a DIM
verb must be use d to re serve s p a c e for a n y ar r a y variab le .
The ma x imum nu mbe r of d imens i ons i n a ny a r ray is two; th e m axi m um size of any
one dime n s i on is 255 . I n a dd i tio n to t h e nu mber o f e l eme nt s s pe cif i ed i n the d i mension
statemen t, o n e add itiona l "zeroth" ele m en t is res e rved . F or exa mpl e, DIM 8(3)
re serve s B (O), 8 (1), 8 (2), and B (3 ). I n two d i me n sio n al arra y s the re i s a n e x tra
"zero th" r o w an d colu m n .
14111.t.MM
The DIM is use d to res e rve space for n u m e r ic a nd st ri ng a rr ay va ri a b l e s.
i s : dim e n s i o n s pe c .
or : d im e n sion spec. , di m li s t
i s : nume ri c di m spec.
o r: st r i ng d i m spec.
i s: n umeric n ame (s i ze)
i s : s tri n g n ame (dims )
o r: st ri n g na m e ( d i m s ) * l en
i s : v alid nu m eric v ariab l e na m e
is : v alid st r i ng v ariab l e n a m e
i s: s i ze
or : s i ze , s i ze
i s : numbe r o f eleme n ts
i s: l engt h o f each s t r ing i n a str i ng array
an d : s i ze
a nd : len
Ab breviat i o n s : D ., DI.
a nd : n u meri c nam e
and : string name
a n d: d i ms
a nd : numeric d im sp e c
and: s tring dim s pe c
a nd : d i mension spec.
Verbs
DIM
1 DIM d i m list
Wh ere: d i m list