From 193d725142ec7f946088890e0654a11db0c3c6c8 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 1 Apr 2002 11:44:34 +0000 Subject: Patches from Yoshinori Sato to fix h8300 support for pthreads and update for the latest and greatest. --- libc/sysdeps/linux/h8300/bits/huge_val.h | 75 ++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 libc/sysdeps/linux/h8300/bits/huge_val.h (limited to 'libc/sysdeps/linux/h8300/bits/huge_val.h') diff --git a/libc/sysdeps/linux/h8300/bits/huge_val.h b/libc/sysdeps/linux/h8300/bits/huge_val.h new file mode 100644 index 000000000..822b82930 --- /dev/null +++ b/libc/sysdeps/linux/h8300/bits/huge_val.h @@ -0,0 +1,75 @@ +/* `HUGE_VAL' constants for m68k (where it is infinity). + Used by and functions for overflow. + Copyright (C) 1992, 1995, 1996, 1997 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 + + +#include +#include + +/* IEEE positive infinity (-HUGE_VAL is negative infinity). */ + +#ifdef __GNUC__ + +# define HUGE_VAL \ + (__extension__ \ + ((union { unsigned long long __l; double __d; }) \ + { __l: 0x7ff0000000000000ULL }).__d) + +#else /* not GCC */ + +static union { unsigned char __c[8]; double __d; } __huge_val = + { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } }; +# define HUGE_VAL (__huge_val.__d) + +#endif /* GCC. */ + + +/* ISO C 9X extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */ + +#ifdef __USE_ISOC9X + +# ifdef __GNUC__ + +# define HUGE_VALF \ + (__extension__ \ + ((union { unsigned long __l; float __f; }) \ + { __l: 0x7f800000UL }).__f) + +# define HUGE_VALL \ + (__extension__ \ + ((union { unsigned long __l[3]; long double __ld; }) \ + { __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld) + +# else /* not GCC */ + +static union { unsigned char __c[4]; float __f; } __huge_valf = + { { 0x7f, 0x80, 0, 0 } }; +# define HUGE_VALF (__huge_valf.__f) + +static union { unsigned char __c[12]; long double __ld; } __huge_vall = + { { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } }; +# define HUGE_VALL (__huge_vall.__ld) + +# endif /* GCC. */ + +#endif /* __USE_ISOC9X. */ -- cgit v1.2.3