1// Copyright (C) 2016 Free Software Foundation, Inc. 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 24void 25test01() 26{ 27 long double ld = -5.3165867831218916301793863361917824e-2467L; 28 VERIFY( std::signbit(ld) == 1 ); 29} 30 31int 32main() 33{ 34 test01(); 35} 36