From 5c12c8eecd5f2e06c200651e90befe85efcf166f Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 11 Oct 2001 08:29:22 +0000 Subject: Patch from Miles Bader to support the v850. He sent this patch to me a month ago, but I forgot to apply it... --- libc/sysdeps/linux/v850/bits/nan.h | 48 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libc/sysdeps/linux/v850/bits/nan.h (limited to 'libc/sysdeps/linux/v850/bits/nan.h') diff --git a/libc/sysdeps/linux/v850/bits/nan.h b/libc/sysdeps/linux/v850/bits/nan.h new file mode 100644 index 000000000..fbabd7e29 --- /dev/null +++ b/libc/sysdeps/linux/v850/bits/nan.h @@ -0,0 +1,48 @@ +/* `NAN' constant for IEEE 754 machines. + Copyright (C) 1992, 1996, 1997, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _MATH_H +# error "Never use directly; include instead." +#endif + + +/* IEEE Not A Number. */ + +#ifdef __GNUC__ + +# define NAN \ + (__extension__ \ + ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \ + { __l: 0x7fc00000UL }).__d) + +#else + +# include + +# if __BYTE_ORDER == __BIG_ENDIAN +# define __nan_bytes { 0x7f, 0xc0, 0, 0 } +# endif +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define __nan_bytes { 0, 0, 0xc0, 0x7f } +# endif + +static union { unsigned char __c[4]; float __d; } __nan_union = { __nan_bytes }; +# define NAN (__nan_union.__d) + +#endif /* GCC. */ -- cgit v1.2.3