Re: Getting greatest decimal accuracy out of G_PI
- From: Sergei Steshenko <sergstesh yahoo com>
- To: gtk-list gnome org
- Subject: Re: Getting greatest decimal accuracy out of G_PI
- Date: Fri, 2 Feb 2007 16:14:09 -0800 (PST)
--- David Neèas (Yeti) <yeti physics muni cz> wrote:
> On Fri, Feb 02, 2007 at 05:50:47PM -0500, zentara wrote:
> > I've tried printing G_PI with the %Lf.20 format and I'm still stuck with
> > 15 decimal places of accuracy.
> The definition of G_PI is IMO a bit misguided. It has 50
> decimal digits, but I cannot imagine how this excessive
> precision could be used (except putting it into a string and
> parsing that) because long double literals need an `l'
> #define MY_LONG_PI 3.1415926535897932384626433832795028841971693993751l
You can still use explicit cast, i.e.
, can't you ? Even without the trail 'l' you have correctly suggested to
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