From d318611dd6f23fcfedd50e9b9e24620b102ba96a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 21:44:05 +0200 Subject: Adding upstream version 1.23.0. Signed-off-by: Daniel Baumann --- lib/isnanl-nolibm.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 lib/isnanl-nolibm.h (limited to 'lib/isnanl-nolibm.h') diff --git a/lib/isnanl-nolibm.h b/lib/isnanl-nolibm.h new file mode 100644 index 0000000..f04c489 --- /dev/null +++ b/lib/isnanl-nolibm.h @@ -0,0 +1,34 @@ +/* Test for NaN that does not need libm. + Copyright (C) 2007-2023 Free Software Foundation, Inc. + + 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. + + 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +#if HAVE_ISNANL_IN_LIBC +/* Get declaration of isnan macro or (older) isnanl function. */ +# include +# 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_isnanl, but clang doesn't. */ +# undef isnanl +# define isnanl(x) __builtin_isnan ((long double)(x)) +# elif defined isnan +# undef isnanl +# define isnanl(x) isnan ((long double)(x)) +# endif +#else +/* Test whether X is a NaN. */ +# undef isnanl +# define isnanl rpl_isnanl +extern int isnanl (long double x); +#endif -- cgit v1.2.3