/*
  cap04_somma.c: Summing up many integers
  Copyright (C) 2006 Giovanni Organtini (G.Organtini@roma1.infn.it)

  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.

  This program has been extracted from "Programmazione Scientifica",
  Pearson Education ed. (2006), by Barone, Marinari, Organtini and
  Ricci-Tersenghi. ISBN 8871922425.
*/

#include <stdio.h>

#define N 10000000

main() {
  float S = 0., x = 7.;
  unsigned int i, iS = 0, ix = 7;
  for (i = 0; i < N; i++) {
    S += x;
    iS += ix;
  }
  printf("Using floats  : %.0f x %d = %.0f\n", x, N, S);
  printf("Using integers: %d x %d = %d\n", ix, N, iS);
}