Task

Demonstrate a language's methods of:

   variable declaration
   initialization
   assignment
   datatypes
   scope 
   referencing,     and 
   other variable related facilities


/* The PROCEDURE block and BEGIN block are used to delimit scopes. */
 
declare i float; /* external, global variable, excluded from the */
                 /* local area (BEGIN block) below.              */
begin;
   declare (i, j) fixed binary; /* local variable */
   get list (i, j);
   put list (i,j);
end;
 
/* Examples of initialization. */
 
declare p fixed initial (25);
declare q(7) fixed initial (9, 3, 5, 1, 2, 8, 15);
   /* sets all elements of array Q at run time, on block entry. */
declare r(7) fixed initial (9, 3, 5, 1, 2, 8, 15);
   /* sets all elements of array R at compile time. */
 
p = 44; /* run-time assignment. */
q = 0; /* run-time initialization of all elements of Q to zero. */
q = r; /* run-time assignment of all elements of array R to     */
       /* corresponding elemets of S.                           */