Version 3.xx CASE on ranges

lstroem

In NF you can write a statement like

CASE a OF
1.. 10 : BEGIN
END
11.20 : BEGIN
END;
END

This is not possible in version 3.xx, however, you can circumvent it by using the below construction

CASE TRUE OF
(a > 0 AND a < 11): BEGIN
END;
(a > 10 AND a < 21) : BEGIN
END;
END;

The first TRUE statement will be executed, however note that unlike C/C++ there is no fall through, so the CASE condition will be exited after the first true condition

/Lars