Wolfgang Lenerz via Ql-Users wrote: > Just a rant about the SBasic AND operator. > > Suppose this: > > 10 a=0 > 20 b=10 > 30 if (a<>0 AND b/a=5) > 40 do_something > 50 end if > > Run it and what happens? > > You get an "overflow" error at line 30. > You get this error because it is trying to evaluate the second condition > (b/a) and failing as a=0 and you can't divide by 0. > > BUT WHY IS IT TRYING TO EVALUATE THE SECOND CONDITION IN THE FIRST PLACE?
Maybe this wise language includes Chinese or Persian philosophy? > The first condition (a<>0) is NOT met and so, in any other programming > language I use, the second condition isn't even tested, as the result > will be "false" anyway because of this. IIRC other languages also do not _guarantee_ to stop evaluation after a lefthand AND condition failed. Peter _______________________________________________ QL-Users Mailing List