Re: [Chicken-users] foreign-lambda - how to declare double array as argument and how to pass things to it?
Did you try passing in an f64vector instead of a vector? On 11/11/07, Terrence Brannon <[EMAIL PROTECTED]> wrote: > My guess was f64vector. That compiled, but passing a Scheme vector in failed: > > #;2> (let ([vec (vector 0 1 1)]) (polevl 42 vec (vector-length vec))) > Error: bad argument type - not a number-vector or not of the correct type > #(0 1 1) > f64vector ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
Re: [Chicken-users] foreign-lambda - how to declare double array as argument and how to pass things to it?
Well, no here is what I did:
(let ([vec (vector 0 1 1)]) (polevl 42 vec (vector-length vec)))
how would I pass in an f64 vec?
and was I right in choosing f64vec on the chicken side for a C
function with this signature:
double polevl( x, coef, N )
double x;
double coef[];
int N;
{
...
}
On Nov 11, 2007 10:37 PM, Zbigniew <[EMAIL PROTECTED]> wrote:
> Did you try passing in an f64vector instead of a vector?
>
>
> On 11/11/07, Terrence Brannon <[EMAIL PROTECTED]> wrote:
> > My guess was f64vector. That compiled, but passing a Scheme vector in
> > failed:
> >
> > #;2> (let ([vec (vector 0 1 1)]) (polevl 42 vec (vector-length vec)))
> > Error: bad argument type - not a number-vector or not of the correct type
> > #(0 1 1)
> > f64vector
>
___
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Re: [Chicken-users] foreign-lambda - how to declare double array as argument and how to pass things to it?
srfi-4 doc is a good place to look for info on number-vectors. All you need do there is replace vector with f64vector and vector-length with f64vector-length. I think this should work. On 11/12/07, Terrence Brannon <[EMAIL PROTECTED]> wrote: > Well, no here is what I did: > (let ([vec (vector 0 1 1)]) (polevl 42 vec (vector-length vec))) > > how would I pass in an f64 vec? ___ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
