diff options
Diffstat (limited to 'libquadmath/math/signbitq.c')
-rw-r--r-- | libquadmath/math/signbitq.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/libquadmath/math/signbitq.c b/libquadmath/math/signbitq.c index 2ddab8667a2..8f7020e349e 100644 --- a/libquadmath/math/signbitq.c +++ b/libquadmath/math/signbitq.c @@ -1,10 +1,26 @@ -#include "quadmath-imp.h" +/* Return nonzero value if number is negative. + Copyright (C) 1997-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "quadmath-imp.h" int -signbitq (const __float128 x) +signbitq (__float128 x) { - ieee854_float128 f; - f.value = x; - return f.ieee.negative; + return __builtin_signbit (x); } |