23 Sep
2008
23 Sep
'08
12:36 a.m.
On Mon, Sep 22, 2008 at 09:41:05PM +0000, 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 this astonishing? The smallest positive single-precision IEEE floating point number is roughly 1.175494e-38. Since user-specified numbers are rounded to the closest representable value, 1.4e-45f is a fancy way of typing zero.
The smallest subnormal value is approximately 1.40129846e-45F (__FLT_DENORM_MIN__). The obvious conclusion is that subnormal support is broken or disabled on Alpha by default.
OK. I apologize for the noise.