/*
** Splint - annotation-assisted static program checker
** Copyright (C) 1994-2003 University of Virginia,
**         Massachusetts Institute of Technology
**
** 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.
** 
** The GNU General Public License is available from http://www.gnu.org/ or
** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
** MA 02111-1307, USA.
**
** For information on splint: info@splint.org
** To report a bug: splint-bug@splint.org
** For more information: http://www.splint.org
*/
/*
** ynm.c
*/

# include "splintMacros.nf"
# include "basic.h"

ynm ynm_fromCodeChar (char c)
{
  switch (c)
    {
    case '+': return YES;
    case '-': return NO;
    case '=': return MAYBE;
    BADDEFAULT;
    }
}

int ynm_compare (ynm x, ynm y)
{
  switch (x)
    {
    case YES: if (y == YES) return 0; else return 1;
    case NO:  if (y == NO)  return 0; else return -1;
    case MAYBE: if (y == MAYBE) return 0; else return 1;
    }

  BADEXIT;
}