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/* Rounds to the nearest long long int value, ignoring rounding mode
Copyright (C) 2006 IBM Corporation.
Copyright (C) 2007-2015 Free Software Foundation, Inc.
This file is part of the Decimal Floating Point C Library.
Author(s): Joseph Kerian <jkerian@us.ibm.com>
The Decimal Floating Point C Library is free software; you can
redistribute it and/or modify it under the terms of the GNU Lesser
General Public License version 2.1.
The Decimal Floating Point C Library 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 Lesser General Public License version 2.1 for more details.
You should have received a copy of the GNU Lesser General Public
License version 2.1 along with the Decimal Floating Point C Library;
if not, write to the Free Software Foundation, Inc., 59 Temple Place,
Suite 330, Boston, MA 02111-1307 USA.
Please see libdfp/COPYING.txt for more information. */
#ifndef _DECIMAL_SIZE
# define _DECIMAL_SIZE 32
# include <decimal32.h>
#endif
#include <decContext.h>
#include <decNumber.h>
#include <math.h>
#include <errno.h>
#include <limits.h>
#include <ieee754r_private.h>
#include <fenv.h>
#ifndef FUNCTION_NAME
# define FUNCTION_NAME llround
#endif
#include <dfpmacro.h>
#ifndef __ROUND_RETURN_TYPE
# define __ROUND_RETURN_TYPE long long int
# define __MIN_VALUE LLONG_MIN
# define __MAX_VALUE LLONG_MAX
#endif
#ifndef __ROUND_MODE
# define __ROUND_MODE DEC_ROUND_HALF_UP
#endif
static __ROUND_RETURN_TYPE
IEEE_FUNCTION_NAME (DEC_TYPE x)
{
DEC_TYPE result;
decContext context;
decNumber dn_result;
decNumber dn_x;
FUNC_CONVERT_TO_DN (&x, &dn_x);
if (decNumberIsNaN (&dn_x) || decNumberIsInfinite (&dn_x)
|| x > __MAX_VALUE || x < __MIN_VALUE)
{
DFP_EXCEPT (FE_INVALID);
return (__ROUND_RETURN_TYPE) x;
}
decContextDefault (&context, DEFAULT_CONTEXT);
context.round = __ROUND_MODE;
decNumberToIntegralValue (&dn_result,&dn_x,&context);
FUNC_CONVERT_FROM_DN(&dn_result, &result, &context);
/* Use _Decimal* to __ROUND_RETURN_TYPE casting. */
return (__ROUND_RETURN_TYPE)result;
/* return (__ROUND_RETURN_TYPE)decNumberToInteger (&dn_result); */
}
__ROUND_RETURN_TYPE
INTERNAL_FUNCTION_NAME (DEC_TYPE x)
{
__ROUND_RETURN_TYPE z = IEEE_FUNCTION_NAME (x);
if (FUNC_D(__isnan) (x) || FUNC_D(__isinf) (x)
|| x > __MAX_VALUE || x < __MIN_VALUE)
DFP_ERRNO (EDOM);
return z;
}
weak_alias (INTERNAL_FUNCTION_NAME, EXTERNAL_FUNCTION_NAME)
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