/* nag_deviates_gamma_vector (g01tfc) Example Program.
 *
 * Copyright 2011, Numerical Algorithms Group.
 *
 * Mark 23, 2011.
 */
#include <stdio.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg01.h>

#define ENUMLEN 30

int main(void)
{
  /* Integer scalar and array declarations */
  Integer ltail, lp, la, lb, i, lout;
  Integer *ivalid = 0;
  Integer exit_status = 0;

  /* NAG structures */
  NagError fail;
  Nag_TailProbability *tail = 0;

  /* Double scalar and array declarations */
  double tol;
  double *p = 0, *a = 0, *b = 0, *g = 0;

  /* Character scalar and array declarations */
  char ctail[ENUMLEN];

  /* Initialise the error structure to print out any error messages */
  INIT_FAIL(fail);

  printf("nag_deviates_gamma_vector (g01tfc) Example Program Results\n\n");

  /* Skip heading in data file*/
  scanf("%*[^\n] ");

  /* Read in the tolerance */
  scanf("%lf%*[^\n] ", &tol);

  /* Read in the input vectors */
  scanf("%ld%*[^\n] ", &ltail);
  if (!(tail = NAG_ALLOC(ltail, Nag_TailProbability))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }
  for (i = 0; i < ltail; i++) {
    scanf("%s", ctail);
    tail[i] = (Nag_TailProbability) nag_enum_name_to_value(ctail);
  }
  scanf("%*[^\n] ");

  scanf("%ld%*[^\n] ", &lp);
  if (!(p = NAG_ALLOC(lp, double))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }
  for (i = 0; i < lp; i++)
    scanf("%lf", &p[i]);
  scanf("%*[^\n] ");

  scanf("%ld%*[^\n] ", &la);
  if (!(a = NAG_ALLOC(la, double))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }
  for (i = 0; i < la; i++)
    scanf("%lf", &a[i]);
  scanf("%*[^\n] ");

  scanf("%ld%*[^\n] ", &lb);
  if (!(b = NAG_ALLOC(lb, double))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }
  for (i = 0; i < lb; i++)
    scanf("%lf", &b[i]);
  scanf("%*[^\n] ");

  /* Allocate memory for output */
  lout = MAX(ltail,MAX(lp,MAX(la,lb)));
  if (!(g = NAG_ALLOC(lout, double)) ||
      !(ivalid = NAG_ALLOC(lout, Integer))) {
    printf("Allocation failure\n");
    exit_status = -1;
    goto END;
  }

  /* Calculate probability */
  nag_deviates_gamma_vector(ltail, tail, lp, p, la, a, lb, b, tol, g,
                            ivalid, &fail);
  if (fail.code != NE_NOERROR) {
    printf("Error from nag_deviates_gamma_vector (g01tfc).\n%s\n",
            fail.message);
    exit_status = 1;
    if (fail.code != NW_IVALID) goto END;
  }

  /* Display title */
  printf("        tail         p          a         b        g     ivalid\n");
  printf(" ---------------------------------------------------------------\n");

  /* Display results */
  for (i = 0; i < lout; i++)
    printf(" %15s  %6.3f    %6.2f    %6.2f   %7.3f    %3ld\n",
           nag_enum_value_to_name(tail[i%ltail]),p[i%lp], a[i%la],
           b[i%lb], g[i], ivalid[i]);

 END:
  if(tail) NAG_FREE(tail);
  if(p) NAG_FREE(p);
  if(a) NAG_FREE(a);
  if(b) NAG_FREE(b);
  if(g) NAG_FREE(g);
  if(ivalid) NAG_FREE(ivalid);

  return(exit_status);
}