[Bug: 21.4.19] Bruised floating point numbers from string-to-int

[Vin Shelton]

Hi Rodney,

On 4/3/06, Rodney Sparapani <rsparapa at mcw.edu> wrote:
> ================================================================
> Dear Bug Team!
>
> string-to-int sometimes returns unsightly values which makes
> writing elisp functions that operate on tables of numbers
> very complicated if you want them to remain easy on the eyes.
> I'm not sure where the problem is:  xemacs, os, compiler, cpu???
> Any help would be appreciated:
> (string-to-int "8.180E-1")
> 0.8179999999999999

Interestingly, on my windows native XEmacs (both 21.4 and 21.5),
compiled with Visual C++, I get:

(string-to-int "8.180E-1")
0.818

On my Cygwin XEmacs (both 21.4 and 21.5), compiled with gcc, I get:

(string-to-int "8.180E-1")
0.8179999999999999

HTH,
  Vin

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