Re: [boost] Re: int vs. unsigned int

From: Wynand Winterbach (wynand_at_[hidden])
Date: 2003-10-31 11:07:53

On Thu, Oct 30, 2003 at 12:06:08PM -0700, Dave Gomboc wrote:
> # for ( unsigned i = 5; i >= 0; i-- ) { cout << blah[i]; }
> # 
> # This fails i can never become -1. Actually, you'll have an 
> # infinite loop.
> 
> If your intent is to compare "i >= 0", then your intent is to test
> whether i is negative or non-negative.  It would be completely illogical
> to declare i unsigned, and only beginners would be surprised that this
> is wrong.

Dave, this is what I was saying. And no, not only "beginners" would be
surprised, since one might actually be too busy sorting out other
thoughts related to an algorithm to notice.

> Dave
> 
> [resend; apology if appears more than once]
> 

--Wynand