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cc6d3bde 1/* Implementation of the RRSPACING intrinsic
36ae8a61 2 Copyright 2006, 2007 Free Software Foundation, Inc.
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3 Contributed by Steven G. Kargl <kargl@gcc.gnu.org>
4
5This file is part of the GNU Fortran 95 runtime library (libgfortran).
6
7Libgfortran is free software; you can redistribute it and/or
8modify it under the terms of the GNU General Public
9License as published by the Free Software Foundation; either
10version 2 of the License, or (at your option) any later version.
11
12In addition to the permissions in the GNU General Public License, the
13Free Software Foundation gives you unlimited permission to link the
14compiled version of this file into combinations with other programs,
15and to distribute those combinations without any restriction coming
16from the use of this file. (The General Public License restrictions
17do apply in other respects; for example, they cover modification of
18the file, and distribution when not linked into a combine
19executable.)
20
21Libgfortran is distributed in the hope that it will be useful,
22but WITHOUT ANY WARRANTY; without even the implied warranty of
23MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24GNU General Public License for more details.
25
26You should have received a copy of the GNU General Public
27License along with libgfortran; see the file COPYING. If not,
28write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
29Boston, MA 02110-1301, USA. */
30
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31#include "libgfortran.h"
32
33
4010308c 34#if defined (HAVE_GFC_REAL_10) && defined (HAVE_FABSL) && defined (HAVE_FREXPL)
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35
36extern GFC_REAL_10 rrspacing_r10 (GFC_REAL_10 s, int p);
37export_proto(rrspacing_r10);
38
39GFC_REAL_10
40rrspacing_r10 (GFC_REAL_10 s, int p)
41{
42 int e;
43 GFC_REAL_10 x;
44 x = fabsl (s);
45 if (x == 0.)
46 return 0.;
47 frexpl (s, &e);
4010308c 48#if defined (HAVE_LDEXPL)
cc6d3bde 49 return ldexpl (x, p - e);
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50#else
51 return scalbnl (x, p - e);
52#endif
53
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54}
55
56#endif