OpenXM/src/ox_gsl/call_gsl.c - diff

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Diff for /OpenXM/src/ox_gsl/call_gsl.c between version 1.2 and 1.3

-version 1.2, 2018/03/30 04:43:16
+version 1.3, 2018/04/17 00:56:38
 Line 1
 Line 1
 Line 1
- /* $OpenXM$
+ /* $OpenXM: OpenXM/src/ox_gsl/call_gsl.c,v 1.2 2018/03/30 04:43:16 takayama Exp $
  */
  //#include <gsl/gsl_types.h>
  //#include <gsl/gsl_sys.h>
 Line 6
 Line 6
 Line 6
  #include <gsl/gsl_sf_result.h>
  #include <gsl/gsl_errno.h>
  #include <gsl/gsl_sf_gamma.h>
+ #include <gsl/gsl_integration.h>
  #include "ox_gsl.h"
  extern int Debug;
  // local prototype declarations
  void  call_gsl_sf_lngamma_complex_e() {
-   cmo *c;
+   int argc;
    double zr;
    double zi;
    gsl_sf_result lnr;
-Line 21  void  call_gsl_sf_lngamma_complex_e() {
+Line 22  void  call_gsl_sf_lngamma_complex_e() {
 Line 21  void  call_gsl_sf_lngamma_complex_e() {
 Line 22  void  call_gsl_sf_lngamma_complex_e() {
    cmo *ans;
    //  gsl_set_error_handler_off();
    gsl_set_error_handler((gsl_error_handler_t *)myhandler);
-   c = pop(); // number of args
+   argc = get_i(); // number of args
+   if (argc != 2) {
+     pops(argc);
+     push(make_error2("The argc must be 2 for gsl_sf_lngamma_complex_e.",NULL,0,-1));
+     return;
+   }
    zr=get_double();
    zi=get_double();
    if (Debug) printf("gsl_sf_lngamma_complex_e(zr=%lg,zi=%lg)\n",zr,zi);
-Line 32  void  call_gsl_sf_lngamma_complex_e() {
+Line 38  void  call_gsl_sf_lngamma_complex_e() {
 Line 32  void  call_gsl_sf_lngamma_complex_e() {
 Line 38  void  call_gsl_sf_lngamma_complex_e() {
    ans = (cmo *)new_cmo_list_array((void *)r,3);
    push(ans);
  }
+ cmo *Func_x=NULL;
+ double f_x(double x,void *params) {
+   double d;
+   replace(1,"x",x);
+   if (eval_cmo(Func_x,&d)==0) GSL_ERROR("eval_cmo fails in f_x",GSL_ETOL);
+   return(d);
+ }
+ void  call_gsl_integration_qags() {
+   int argc;
+   double a;
+   double b;
+   int status;
+   cmo *r[3];
+   cmo *ans;
+   gsl_integration_workspace * w
+     = gsl_integration_workspace_alloc (1000);
+   double result, error;
+   gsl_function F;
+   double epsabs=0;
+   double epsrel=1e-7;
+   int limit=1000;
+   //  gsl_set_error_handler_off();
+   gsl_set_error_handler((gsl_error_handler_t *)myhandler);
+   argc = get_i(); // number of args
+   if (argc != 3) {
+     pops(argc);
+     push(make_error2("The argc must be 3 for gsl_integration_qags.",NULL,0,-1));
+     return;
+   }
+   Func_x = pop();
+   a = get_double();
+   b = get_double();
+   F.function = &f_x;
+   status=gsl_integration_qags (&F, a, b, epsabs, epsrel, limit,
+                                w, &result, &error);
+ //  printf ("result          = % .18f\n", result);
+ //  printf ("estimated error = % .18f\n", error);
+ //  printf ("intervals       = %zu\n", w->size);
+   gsl_integration_workspace_free(w);
+   r[0] = (cmo *)new_cmo_double(result);
+   r[1] = (cmo *)new_cmo_double(error);
+   r[2] = (cmo *)new_cmo_int32(status);
+   ans = (cmo *)new_cmo_list_array((void *)r,3);
+   push(ans);
+ }

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