LSL can't subtract correctly

Throw this in a script and give it a try. The comments explain the error.

{
integer i;
integer MAX=3;

//incorrectly runs the i=2 state
for(i=0;i<3-1;i++)
llOwnerSay((string)i);

//Still incorrectly runs the i=2 state
// so this isn't an operator precedence issue
for(i=0;i<3-1);i++)
llOwnerSay((string)i);

//won't even COMPILE this (complains of syntax error)
// It doesn't like the minus sign
//for(i=0;i<MAX-1;i++)
// llOwnerSay((string)i);

//Again, won't even compile
//for(i=0;i<MAX-1);i++)
// llOwnerSay((string)i);

//Yet this works
for(i=0;i<3+1;i++)
llOwnerSay((string)i);

//And this works
for(i=0;i<MAX+1;i++)
llOwnerSay((string)i);
}

I think this is it thinking "-1" means "negative one", the integer rather than "minus one", meaning an operator then an integer. Try putting a space between the - and the 1.

That's one annoying compiler bug. Thanks for the suggestion to side step it for now (I tried it and that is a successful work around).

I'm not sure that explanation is entirely correct though, as the first block doesn't make sense then (why does it compile at all?).

No idea sorry.

Maybe its idea of valid numbers is lax, like a regex of /[-0-9.]*/, so it sees "3-1" as an integer constant, and then runs it through the C function atoi(), resulting in "3"?

The LSL parser is really horrid, it's full of stuff like this. They need to implement constant folding so they don't have to special-case negative numbers.