/* -*- mode: C -*-  */
/* 
   IGraph library.
   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard st, Cambridge MA, 02139 USA
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA 
   02110-1301 USA

*/

#include <igraph.h>
#include <igraph_types_internal.h>
#include <stdlib.h>

void print_set(igraph_set_t *set, FILE *f) {
  long int state=0;
  igraph_integer_t element;
  while (igraph_set_iterate(set, &state, &element)) {
    fprintf(f, " %li", (long int) element);
  }
  fprintf(f, "\n");
}

int main() {
  
  igraph_set_t set;
  int i;

  /* simple init */
  igraph_set_init(&set, 0);
  igraph_set_destroy(&set);

  /* addition, igraph_set_size */
  igraph_set_init(&set, 10);
  i=10;
  while (igraph_set_size(&set) < 10) {
    igraph_set_add(&set, 2*i);
    i--;
  }
  while (igraph_set_size(&set) < 21) {
    igraph_set_add(&set, 2*i+1);
    i++;
  }
  print_set(&set, stdout);

  /* adding existing element */
  igraph_set_add(&set, 8);
  if (igraph_set_size(&set) != 21) {
    return 4;
  }

  /* igraph_set_contains */
  if (igraph_set_contains(&set, 42) || !igraph_set_contains(&set, 7)) {
    return 3;
  }

  /* igraph_set_empty, igraph_set_clear */
  if (igraph_set_empty(&set)) {
    return 1;
  }
  igraph_set_clear(&set);
  if (!igraph_set_empty(&set)) {
    return 2;
  }
  igraph_set_destroy(&set);
  
  if (!IGRAPH_FINALLY_STACK_EMPTY) return 5;

  return 0;
}