CGAL users discussion list

[Ben Supnik <>]

Hi Sylvain,

Sylvain Pion wrote:
> MP_Float -> Gmpq can be done with m.to_rational<Gmpq>()
> (beware, it's undocumented, and maybe not 100% overflow-proof yet,
> but it might do it for you)

:-)

> Gmpq -> MP_Float cannot be done in general, since MP_Float does not
> represent rational numbers.  Gmpq -> Quotient<MP_Float> might be
> possible, but I don't think there is anything ready to use for that.
>
> Do you really need MP_FLoat?

Poorly written email request -- I really need Quotient<MP_Float>.

(Well, what I really need is an exact file format read by two bits of 
code, one that uses GMP and one that does not.  The file format could be 
a persisted version of GMP, quotient<MP_float> or a third alternative.)

cheers
Ben

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