/*-------------------------------------------------------------------------
 *
 * bool.c--
 *	  Functions for the built-in type "bool".
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *	  $Header: /usr/local/cvsroot/pgsql/src/backend/utils/adt/bool.c,v 1.6 1997/09/08 02:30:26 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */

#include "postgres.h"

#include "utils/builtins.h"		/* where the declarations go */
#include "utils/palloc.h"

/*****************************************************************************
 *	 USER I/O ROUTINES														 *
 *****************************************************************************/

/*
 *		boolin			- converts "t" or "f" to 1 or 0
 */
bool
boolin(char *b)
{
	if (b == NULL)
		elog(WARN, "Bad input string for type bool");
	return ((bool) (*b == 't') || (*b == 'T'));
}

/*
 *		boolout			- converts 1 or 0 to "t" or "f"
 */
char	   *
boolout(long b)
{
	char	   *result = (char *) palloc(2);

	*result = (b) ? 't' : 'f';
	result[1] = '\0';
	return (result);
}

/*****************************************************************************
 *	 PUBLIC ROUTINES														 *
 *****************************************************************************/

bool
booleq(int8 arg1, int8 arg2)
{
	return (arg1 == arg2);
}

bool
boolne(int8 arg1, int8 arg2)
{
	return (arg1 != arg2);
}

bool
boollt(int8 arg1, int8 arg2)
{
	return (arg1 < arg2);
}

bool
boolgt(int8 arg1, int8 arg2)
{
	return (arg1 > arg2);
}