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1 | /* Header used to override things detected by the mk-kinds-h.sh script. | |
2 | Copyright (C) 2010-2020 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of the GNU Fortran runtime library (libgfortran). | |
5 | ||
6 | Libgfortran is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | Libgfortran is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | Under Section 7 of GPL version 3, you are granted additional | |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
24 | ||
25 | ||
26 | /* What are the C types corresponding to the real(kind=10) and | |
27 | real(kind=16) types? We currently rely on the following assumptions: | |
28 | -- if real(kind=10) exists, i.e. if HAVE_GFC_REAL_10 is defined, | |
29 | then it is necessarily the "long double" type | |
30 | -- if real(kind=16) exists, then: | |
31 | * if HAVE_GFC_REAL_10, real(kind=16) is "__float128" | |
32 | * otherwise, real(kind=16) is "long double" | |
33 | To allow to change this in the future, we create the | |
34 | GFC_REAL_16_IS_FLOAT128 macro that is used throughout libgfortran. */ | |
35 | ||
36 | #if defined(HAVE_GFC_REAL_16) | |
37 | # if defined(HAVE_GFC_REAL_10) | |
38 | # define GFC_REAL_16_IS_FLOAT128 | |
39 | # if !defined(HAVE_FLOAT128) | |
40 | # error "Where has __float128 gone?" | |
41 | # endif | |
42 | # else | |
43 | # define GFC_REAL_16_IS_LONG_DOUBLE | |
44 | # endif | |
45 | #endif | |
46 |