Re: [PPL-devel] More floating point problems on the Alpha

2008-09-22 Thread Joe Buck
On Mon, Sep 22, 2008 at 09:41:05PM +, Joseph S. Myers wrote: > On Mon, 22 Sep 2008, Joe Buck wrote: > > > On Mon, Sep 22, 2008 at 09:56:30PM +0200, Abramo Bagnara wrote: > > > The problem come from the fact that for astonishing reasons 1.4e-45f is > > > not seen as 1.4e-45. > > > > Why is thi

Re: [PPL-devel] More floating point problems on the Alpha

2008-09-22 Thread Joseph S. Myers
On Mon, 22 Sep 2008, Joe Buck wrote: > On Mon, Sep 22, 2008 at 09:56:30PM +0200, Abramo Bagnara wrote: > > The problem come from the fact that for astonishing reasons 1.4e-45f is > > not seen as 1.4e-45. > > Why is this astonishing? The smallest positive single-precision IEEE > floating point nu

Re: [PPL-devel] More floating point problems on the Alpha

2008-09-22 Thread Joe Buck
On Mon, Sep 22, 2008 at 09:56:30PM +0200, Abramo Bagnara wrote: > The problem come from the fact that for astonishing reasons 1.4e-45f is > not seen as 1.4e-45. Why is this astonishing? The smallest positive single-precision IEEE floating point number is roughly 1.175494e-38. Since user-specifie

Re: [PPL-devel] More floating point problems on the Alpha

2008-09-22 Thread Abramo Bagnara
Roberto Bagnara ha scritto: > [Thanks to all those who responded to my previous problem-report > wrt to the IEEE inexact-flag on the Alpha. We have filed a bug > report for that one.] > > Hi there, > > we keep finding problems on the Alpha, and we are unsure about > what is going on. I anticipa