testprofile on i686

[Berthold Stoeger]

On Freitag, 3. Dezember 2021 12:49:48 CET Berthold Stoeger via subsurface 
wrote:
> Hi Robert,
> 
> On Donnerstag, 2. Dezember 2021 08:38:25 CET Robert Helling via subsurface
> 
> wrote:
> > 		fn2 = (int)(1000.0 * entry->pressures.n2 /
> 
> amb_pressure);
> 
> This looks ill-defined. You probably want lrint(...) or (int)(round(...)) or
> (int)(ceil(...)) or (int)(floor(...)) for reproducible behavior.

Indeed, by rounding one down, I get the "alternative" value. And of course, 
ceil() and floor() would exhibit the same instability depending on whether you 
are eps above or below the integer. So I reckon you should use round(...) or 
lrint(...).

Berthold