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/* Implementation of the NEAREST intrinsic
Copyright 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU Fortran 95 runtime library (libgfortran).
Libgfortran 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 3 of the License, or (at your option) any later version.
Libgfortran 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libgfortran.h"
#define MATHFUNC(funcname) funcname ## l
#if defined (HAVE_GFC_REAL_10) && defined (HAVE_COPYSIGNL) && defined (HAVE_NEXTAFTERL)
extern GFC_REAL_10 nearest_r10 (GFC_REAL_10 s, GFC_REAL_10 dir);
export_proto(nearest_r10);
GFC_REAL_10
nearest_r10 (GFC_REAL_10 s, GFC_REAL_10 dir)
{
dir = MATHFUNC(copysign) (MATHFUNC(__builtin_inf) (), dir);
if (FLT_EVAL_METHOD != 0)
{
/* ??? Work around glibc bug on x86. */
volatile GFC_REAL_10 r = MATHFUNC(nextafter) (s, dir);
return r;
}
else
return MATHFUNC(nextafter) (s, dir);
}
#endif
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