Vector Basic Interpreter Basic 80 Reference Manual - page 41
of
190
DEF
where
Extended, Disk
To declare variable
types
as
integer,
single
precision, double precision, or string.
A OEFtype statement declares that
the
variable
names
beginning
with
the
letter(s) specified
will be that type
variable.
However,
a
type
declaration
character
always
takes precedence
over a OEFtype statement
in
the
typing
of
a
variable.
If
no
type
declaration
statements
are"
encountered,
BASIC-SO
assumes
all
variables
without
declaration
characters
are
single
precision variables.
10 OEFOBL L-P
All variables beginning with
the letters L, M, N,
0,
and P
will be 'double precision
variables.
All variables beginning with
the letter A will be string
variables.
10 DEFINT I-N,W-Z
All variables beginning with
the letters I,
J,
K, L, M,
N, W, X, Y, Z
will
be integer
variables.