/* nag_1d_spline_intg(e02bdc) Example Program
 *
 * Copyright 1991 Numerical Algorithms Group.
 *
 * Mark 2, 1991.
 */

#include <nag.h>
#include <stdio.h>
#include <nag_stdlib.h>
#include <nage02.h>


int main(void)
{
  Integer j;
  double integral;
  Nag_Spline spline;

  Vprintf("e02bdc Example Program Results\n");
  Vscanf("%*[^\n]"); /* Skip heading in data file */
  while(scanf("%ld",&(spline.n)) != EOF)
    {
      if (spline.n>0)
        {
          spline.c = NAG_ALLOC(spline.n, double);
          spline.lamda = NAG_ALLOC(spline.n, double);
          if (spline.c != (double *)0 && spline.lamda != (double *)0)
            {
              for (j=0; j<spline.n; j++)
                Vscanf("%lf",&(spline.lamda[j]));
              for (j=0; j<spline.n-3; j++)
                Vscanf("%lf",&(spline.c[j]));
              e02bdc(&spline, &integral, NAGERR_DEFAULT);
              Vprintf("Definite integral = %11.3e\n",integral);
              NAG_FREE(spline.c);
              NAG_FREE(spline.lamda);
            }
          else
            {
              Vfprintf(stderr,"Storage allocation failed. Reduce the "
                       "size of spline.n\n");
              return EXIT_FAILURE;
            }
        }
      else
        {
          Vfprintf(stderr,"spline.n is out of range : spline.n = %ld\n",
                   spline.n);
          return EXIT_FAILURE;
        }
    }
  return EXIT_SUCCESS;
}