
/* command line test for legendre_a.c
 * Franz Zotter, 2009, see the "LICENSE" file. */

#include <stdio.h>

#include "legendre_a.h"

int main (int argc, char *argv[])
{
  int nmax, l, lc, n, m;
  LegendreWorkSpace *wl=0;
  double *ptr,*theta;

  if (argc <3) {
    printf("legendre_a requires nmax as input argument followed by theta values\n");
    return 0;
  }

  nmax=atoi(argv[1]);
  l=argc-2;
  if ((theta=(double*)calloc(l,sizeof(double)))==0) {
    printf("legendre_a could not allocate memory for %d theta-values\n",l);
    return 0;
  }
  if ((wl=legendre_a_alloc(nmax,l))==0) {
    printf("legendre_a could not allocate memory for n=%d\n and l=%d\n",nmax,
           l);
    free(theta);
    return 0;
  }
  for (n=0; n<l; n++) {
    theta[n]=atof(argv[n+2]);
  }
  legendre_a(theta,wl);

  ptr=wl->p;
  for (lc=0; lc<l; lc++) {
    printf("pt %d:\n",lc);
    for (n=0; n<=nmax; n++) {
      for (m=0; m<=n; m++) {
        printf("P[%2d][%2d](%7.4f)=%7.4f\n",n,m,theta[l],*ptr++);
      }
    }
  }
  legendre_a_free(wl);
  free(theta);
  return 1;
}
