# include <stdio.h>
# include <stdlib.h>

# include "counter.h"

/******************************************************************************/

void counter ( )

/******************************************************************************/
/*
  Purpose:

    counter() simply reports how many times it has been called.

  Discussion:

    If you can get a function like this to work, you have made a good
    start at implementing persistent data.

  Licensing:

    This code is distributed under the MIT license.

  Modified:

    12 May 2021

  Author:

    John Burkardt

  Local static:

    int CALLS: the number of calls.
*/
{
  static int calls = 0;
/*
  Increment CALLS.
*/
  calls = calls + 1;
/*
  Print it.
*/
  printf ( "counter() has been called %d times\n", calls );

  return;
}