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Barbara,

// chk(i) gets '1' if arr(i) is blanks, '0' otherwise
chk = (arr = *blanks);

I had not considered that syntax. Thanks for that -- I still learn
something new on occasion.

Stu


On Thu, Jul 14, 2011 at 17:17, Barbara Morris <bmorris@xxxxxxxxxx> wrote:

On 2011/7/14 10:04 AM, Robert Munday wrote:

I need to test an array to determine if there are any non-blank
elements.
In fixed format I recall that I could test the whole array. That
seems
not to work in /Free format.


Here's another way to do this. It's a bit more code than some of the
other solutions, but the advantage is that it works for any type of
array, since the comparison is done on the array elements themselves
rather than on the bytes of the whole array.

D arr s 5a dim(4)
D chk s n dim(%elem(arr))
D p s 10i 0
/free
// set up the array data
arr = *blanks;
arr(3) = 'a';

// chk(i) gets '1' if arr(i) is blanks, '0' otherwise
chk = (arr = *blanks);

// look for a '0' in the chk array
p = %lookup('0' : chk);
if p <> 0;
dsply ('element ' + %char(p) + ' is not blank');
endif;

*inlr = '1';

The chk array could be arbitrarily large.

D chk s n dim(1000)
...
p = %lookup('0' : chk : 1 : %elem(arr));
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