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/* ocamlgsl - OCaml interface to GSL */
/* Copyright () 2002 - Olivier Andrieu */
/* distributed under the terms of the GPL version 2 */
#include <gsl/gsl_sum.h>
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include "wrappers.h"
#define WS_val(v) ((gsl_sum_levin_u_workspace *)(Field((v), 0)))
ML1_alloc(gsl_sum_levin_u_alloc, Int_val, Abstract_ptr)
ML1(gsl_sum_levin_u_free, WS_val, Unit)
value ml_gsl_sum_levin_u_accel(value arr, value ws)
{
double sum_accel, abserr;
gsl_sum_levin_u_accel(Double_array_val(arr), Double_array_length(arr),
WS_val(ws), &sum_accel, &abserr);
return copy_two_double_arr(sum_accel, abserr);
}
value ml_gsl_sum_levin_u_getinfo(value ws)
{
gsl_sum_levin_u_workspace *W=WS_val(ws);
CAMLparam0();
CAMLlocal2(v, s);
s=copy_double(W->sum_plain);
v=alloc_small(3, 0);
Field(v, 0)=Val_int(W->size);
Field(v, 1)=Val_int(W->terms_used);
Field(v, 2)=s;
CAMLreturn(v);
}
#define WStrunc_val(v) ((gsl_sum_levin_utrunc_workspace *)(Field((v), 0)))
ML1_alloc(gsl_sum_levin_utrunc_alloc, Int_val, Abstract_ptr)
ML1(gsl_sum_levin_utrunc_free, WStrunc_val, Unit)
value ml_gsl_sum_levin_utrunc_accel(value arr, value ws)
{
double sum_accel, abserr;
gsl_sum_levin_utrunc_accel(Double_array_val(arr), Double_array_length(arr),
WStrunc_val(ws), &sum_accel, &abserr);
return copy_two_double_arr(sum_accel, abserr);
}
value ml_gsl_sum_levin_utrunc_getinfo(value ws)
{
gsl_sum_levin_utrunc_workspace *W=WStrunc_val(ws);
CAMLparam0();
CAMLlocal2(v, s);
s=copy_double(W->sum_plain);
v=alloc_small(3, 0);
Field(v, 0)=Val_int(W->size);
Field(v, 1)=Val_int(W->terms_used);
Field(v, 2)=s;
CAMLreturn(v);
}
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