blob: 0de82057afdba8655eafbec645f7f62086080c9c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/* Implementation of the NEAREST intrinsic
Copyright (C) 2003-2013 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 ## f
#if defined (HAVE_GFC_REAL_4) && defined (HAVE_COPYSIGNF) && defined (HAVE_NEXTAFTERF)
extern GFC_REAL_4 nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir);
export_proto(nearest_r4);
GFC_REAL_4
nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir)
{
dir = MATHFUNC(copysign) (MATHFUNC(__builtin_inf) (), dir);
if (FLT_EVAL_METHOD != 0)
{
/* ??? Work around glibc bug on x86. */
volatile GFC_REAL_4 r = MATHFUNC(nextafter) (s, dir);
return r;
}
else
return MATHFUNC(nextafter) (s, dir);
}
#endif
|
