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Annotation of OpenXM/src/ox_gsl/call_gsl.c, Revision 1.3

1.3     ! takayama    1: /* $OpenXM: OpenXM/src/ox_gsl/call_gsl.c,v 1.2 2018/03/30 04:43:16 takayama Exp $
1.2       takayama    2: */
1.1       takayama    3: //#include <gsl/gsl_types.h>
                      4: //#include <gsl/gsl_sys.h>
1.2       takayama    5: #include <unistd.h>
1.1       takayama    6: #include <gsl/gsl_sf_result.h>
1.2       takayama    7: #include <gsl/gsl_errno.h>
1.1       takayama    8: #include <gsl/gsl_sf_gamma.h>
1.3     ! takayama    9: #include <gsl/gsl_integration.h>
1.1       takayama   10: #include "ox_gsl.h"
                     11: extern int Debug;
1.2       takayama   12: // local prototype declarations
                     13:
1.1       takayama   14: void  call_gsl_sf_lngamma_complex_e() {
1.3     ! takayama   15:   int argc;
1.1       takayama   16:   double zr;
                     17:   double zi;
                     18:   gsl_sf_result lnr;
                     19:   gsl_sf_result arg;
                     20:   int status;
                     21:   cmo *r[3];
                     22:   cmo *ans;
1.2       takayama   23:   //  gsl_set_error_handler_off();
                     24:   gsl_set_error_handler((gsl_error_handler_t *)myhandler);
1.3     ! takayama   25:   argc = get_i(); // number of args
        !            26:   if (argc != 2) {
        !            27:     pops(argc);
        !            28:     push(make_error2("The argc must be 2 for gsl_sf_lngamma_complex_e.",NULL,0,-1));
        !            29:     return;
        !            30:   }
1.1       takayama   31:   zr=get_double();
                     32:   zi=get_double();
                     33:   if (Debug) printf("gsl_sf_lngamma_complex_e(zr=%lg,zi=%lg)\n",zr,zi);
                     34:   status = gsl_sf_lngamma_complex_e(zr,zi,&lnr,&arg);
                     35:   r[0] = (cmo *)new_cmo_double(lnr.val);
                     36:   r[1] = (cmo *)new_cmo_double(arg.val);
                     37:   r[2] = (cmo *)new_cmo_int32(status);
1.2       takayama   38:   ans = (cmo *)new_cmo_list_array((void *)r,3);
1.1       takayama   39:   push(ans);
                     40: }
1.3     ! takayama   41:
        !            42: cmo *Func_x=NULL;
        !            43: double f_x(double x,void *params) {
        !            44:   double d;
        !            45:   replace(1,"x",x);
        !            46:   if (eval_cmo(Func_x,&d)==0) GSL_ERROR("eval_cmo fails in f_x",GSL_ETOL);
        !            47:   return(d);
        !            48: }
        !            49: void  call_gsl_integration_qags() {
        !            50:   int argc;
        !            51:   double a;
        !            52:   double b;
        !            53:   int status;
        !            54:   cmo *r[3];
        !            55:   cmo *ans;
        !            56:   gsl_integration_workspace * w
        !            57:     = gsl_integration_workspace_alloc (1000);
        !            58:   double result, error;
        !            59:   gsl_function F;
        !            60:   double epsabs=0;
        !            61:   double epsrel=1e-7;
        !            62:   int limit=1000;
        !            63:
        !            64:   //  gsl_set_error_handler_off();
        !            65:   gsl_set_error_handler((gsl_error_handler_t *)myhandler);
        !            66:   argc = get_i(); // number of args
        !            67:   if (argc != 3) {
        !            68:     pops(argc);
        !            69:     push(make_error2("The argc must be 3 for gsl_integration_qags.",NULL,0,-1));
        !            70:     return;
        !            71:   }
        !            72:   Func_x = pop();
        !            73:   a = get_double();
        !            74:   b = get_double();
        !            75:
        !            76:   F.function = &f_x;
        !            77:
        !            78:   status=gsl_integration_qags (&F, a, b, epsabs, epsrel, limit,
        !            79:                                w, &result, &error);
        !            80:
        !            81: //  printf ("result          = % .18f\n", result);
        !            82: //  printf ("estimated error = % .18f\n", error);
        !            83: //  printf ("intervals       = %zu\n", w->size);
        !            84:
        !            85:   gsl_integration_workspace_free(w);
        !            86:
        !            87:   r[0] = (cmo *)new_cmo_double(result);
        !            88:   r[1] = (cmo *)new_cmo_double(error);
        !            89:   r[2] = (cmo *)new_cmo_int32(status);
        !            90:   ans = (cmo *)new_cmo_list_array((void *)r,3);
        !            91:   push(ans);
        !            92: }