Subject: Re: toolchain/21414: double to unsigned int conversion broken
To: Martin Husemann <>
From: Andrey Petrov <>
List: netbsd-bugs
Date: 05/01/2003 21:24:18
On Thu, May 01, 2003 at 10:53:04PM +0200, Martin Husemann wrote:
> On Thu, May 01, 2003 at 07:47:02PM +0000, Andrey Petrov wrote:
> > And as you said this operation is undefined by K&R2.
> All well and true, but this is easy to fix in libc, at least for the unsigned
> 32 bit case. I'll do that, if noone objects.
> The question is: does ISO C define this whole conversion to be unsigned or
> not? I'm unsure because float is involved.

That is what is not specified (i think). Floats are always signed and can
be big numbers so the conversion is troublesome. From common sense one might
expect unsigned->float->unsigned to give the original value. Well,
certainly it's not always possible. 

No objection on my side.