Why does this not work?

[IlovePascal]

Hey, just a little question:
why does this not work?


if x<>xto then x += velocity*&#40; &#40;xto-x&#41;/AbsR&#40;xto-x&#41;&#41;;

with



Function AbsR&#40;x&#58;real&#41;&#58;real;
begin
if x<0 then Result &#58;= -x;
end;

Cheers :wink:

PS: btw, is tht how u return a value for a function?

[Robert Kosek]

There is no += operator in pascal, that's why. ;)

[IlovePascal]

There is no += operator in pascal, that's why.
no,no, I always use that. Well, maybe in strict pascal there isn't, but the compiler accepts it...

[AthenaOfDelphi]

Because the return value of the AbsR function could be undefined.

You are setting 'Result' if x is less than zero, but what about if x is greater than or equal to 0?

Edit:- Just reworded this as the parser took out the less than and greater than symbols

[cragwolf]

So what if x is not less than zero, what do you think your function will return then?

[IlovePascal]

:oops: duh!
well I'm really sorry about this! It's funny how sometimes we just don't see the obvious!
Maybe for the fact I haven't slept more than 10h in the last 60h or so...

Well good night, n this thread can be deleted!!! lol