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  1.  Home
  2. RPG400-L
  3. October 2011

Re: RPG Error or ?


On Oct 11, 2011, at 11:16 AM, rpg400-l-request@xxxxxxxxxxxx wrote:

To me it isn't logical,

if you reset a variable field to "no value" you do it with

string = '';

%len(string) will display 0

so why is a compare with '' not equal to the setting of the field while
it (whatever there may be in memory) works if you do


Others have explained why it didn't work, but to me your original comparison was illogical. I have no concept (although you clearly do) of what "greater than null" means. Nullness surely can only be tested for existence or non-existence. So I expect If x <> ''; to work and If x = ''; But not < or > than.

Jon Paris

www.partner400.com
www.SystemiDeveloper.com





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