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99dee823 | 1 | // Copyright (C) 2016-2021 Free Software Foundation, Inc. |
c91bcffc JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-options "-std=gnu++98 -ffast-math" } | |
19 | // { dg-do run { target i?86-*-* x86_64-*-* } } | |
20 | ||
21 | #include <cmath> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
27 | long double ld = -5.3165867831218916301793863361917824e-2467L; | |
28 | VERIFY( std::signbit(ld) == 1 ); | |
29 | } | |
30 | ||
31 | int | |
32 | main() | |
33 | { | |
34 | test01(); | |
35 | } |