08fd13d447
* m4/mtype.m4 (upcase, hasmathfunc, mathfunc_macro): New macros. * m4/fraction.m4: Use new macros to support quad-float types. * m4/set_exponent.m4: Likewise. * m4/spacing.m4: Likewise. * m4/exponent.m4: Likewise. * m4/nearest.m4: Likewise. * m4/norm2.m4: Likewise. * m4/bessel.m4: Likewise. * m4/rrspacing.m4: Likewise. * generated/bessel_r4.c:Regenerated. * generated/bessel_r8.c: Regenerated. * generated/bessel_r10.c: Regenerated. * generated/bessel_r16.c: Regenerated. * generated/exponent_r4.c: Regenerated. * generated/exponent_r8.c: Regenerated. * generated/exponent_r10.c: Regenerated. * generated/exponent_r16.c: Regenerated. * generated/fraction_r4.c: Regenerated. * generated/fraction_r8.c: Regenerated. * generated/fraction_r10.c: Regenerated. * generated/fraction_r16.c: Regenerated. * generated/nearest_r4.c: Regenerated. * generated/nearest_r8.c: Regenerated. * generated/nearest_r10.c: Regenerated. * generated/nearest_r16.c: Regenerated. * generated/norm2_r4.c: Regenerated. * generated/norm2_r8.c: Regenerated. * generated/norm2_r10.c: Regenerated. * generated/norm2_r16.c: Regenerated. * generated/rrspacing_r4.c: Regenerated. * generated/rrspacing_r8.c: Regenerated. * generated/rrspacing_r10.c: Regenerated. * generated/rrspacing_r16.c: Regenerated. * generated/set_exponent_r4.c: Regenerated. * generated/set_exponent_r8.c: Regenerated. * generated/set_exponent_r10.c: Regenerated. * generated/set_exponent_r16.c: Regenerated. * generated/spacing_r4.c: Regenerated. * generated/spacing_r8.c: Regenerated. * generated/spacing_r10.c: Regenerated. * generated/spacing_r16.c: Regenerated. From-SVN: r163620
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/* Implementation of the NEAREST intrinsic
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Copyright 2003, 2007, 2009 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.com>.
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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#define MATHFUNC(funcname) funcname ## f
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#if defined (HAVE_GFC_REAL_4) && defined (HAVE_COPYSIGNF) && defined (HAVE_NEXTAFTERF)
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extern GFC_REAL_4 nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir);
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export_proto(nearest_r4);
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GFC_REAL_4
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nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir)
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{
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dir = MATHFUNC(copysign) (MATHFUNC(__builtin_inf) (), dir);
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if (FLT_EVAL_METHOD != 0)
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{
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/* ??? Work around glibc bug on x86. */
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volatile GFC_REAL_4 r = MATHFUNC(nextafter) (s, dir);
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return r;
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}
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else
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return MATHFUNC(nextafter) (s, dir);
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}
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#endif
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