diff options
Diffstat (limited to 'gnulib/import/isnanl-nolibm.h')
| -rw-r--r-- | gnulib/import/isnanl-nolibm.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/gnulib/import/isnanl-nolibm.h b/gnulib/import/isnanl-nolibm.h index 103d31a7066..f9f5efd7860 100644 --- a/gnulib/import/isnanl-nolibm.h +++ b/gnulib/import/isnanl-nolibm.h @@ -1,5 +1,5 @@ /* Test for NaN that does not need libm. - Copyright (C) 2007-2020 Free Software Foundation, Inc. + Copyright (C) 2007-2021 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -17,13 +17,11 @@ #if HAVE_ISNANL_IN_LIBC /* Get declaration of isnan macro or (older) isnanl function. */ # include <math.h> -# ifndef __has_builtin -# define __has_builtin(name) 0 -# endif -# if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanl)) - /* 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_isnanl, but clang doesn't. */ # undef isnanl -# define isnanl(x) __builtin_isnanl ((long double)(x)) +# define isnanl(x) __builtin_isnan ((long double)(x)) # elif defined isnan # undef isnanl # define isnanl(x) isnan ((long double)(x)) |