diff options
Diffstat (limited to 'lib/isnanf-nolibm.h')
| -rw-r--r-- | lib/isnanf-nolibm.h | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/lib/isnanf-nolibm.h b/lib/isnanf-nolibm.h index b1b7305e..4ce81d6c 100644 --- a/lib/isnanf-nolibm.h +++ b/lib/isnanf-nolibm.h @@ -1,35 +1,27 @@ /* Test for NaN that does not need libm. - Copyright (C) 2007-2018 Free Software Foundation, Inc. + Copyright (C) 2007-2022 Free Software Foundation, Inc. - This program is free software: you can redistribute it and/or - modify it under the terms of either: + This file 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 Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at your - option) any later version. - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at your - option) any later version. - - or both in parallel, as here. - This program is distributed in the hope that it will be useful, + This file 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 General Public License for more details. + GNU Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #if HAVE_ISNANF_IN_LIBC /* Get declaration of isnan macro or (older) isnanf function. */ # include <math.h> -# if __GNUC__ >= 4 - /* GCC 4.0 and newer provides three built-ins for isnan. */ +# if (__GNUC__ >= 4) || (__clang_major__ >= 4) + /* GCC >= 4.0 and clang provide a type-generic built-in for isnan. + GCC >= 4.0 also provides __builtin_isnanf, but clang doesn't. */ # undef isnanf -# define isnanf(x) __builtin_isnanf ((float)(x)) +# define isnanf(x) __builtin_isnan ((float)(x)) # elif defined isnan # undef isnanf # define isnanf(x) isnan ((float)(x)) |