Empty string: Difference between revisions
Content added Content deleted
(added OpenEdge solution) |
|||
| Line 427: | Line 427: | ||
s2 empty? false |
s2 empty? false |
||
</pre> |
</pre> |
||
=={{header|OpenEdge/Progress}}== |
|||
Strings can be stored in CHARACTER and LONGCHAR variables. Both are initially empty. Both can also be unknown. A CHARACTER has a maximum length of approx 32000 bytes. |
|||
<lang progress>DEFINE VARIABLE cc AS CHARACTER. |
|||
IF cc > '' THEN |
|||
MESSAGE 'not empty' VIEW-AS ALERT-BOX. |
|||
ELSE IF cc = ? THEN |
|||
MESSAGE 'unknown' VIEW-AS ALERT-BOX. |
|||
ELSE |
|||
MESSAGE 'empty' VIEW-AS ALERT-BOX. |
|||
</lang> |
|||
=={{header|PARI/GP}}== |
=={{header|PARI/GP}}== |
||