Update

[l4.git] / l4 / pkg / l4re-core / uclibc / lib / contrib / uclibc / libc / sysdeps / linux / i386 / bits / huge_vall.h

diff --git a/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/i386/bits/huge_vall.h b/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/i386/bits/huge_vall.h
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+++ b/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/i386/bits/huge_vall.h
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+/* `HUGE_VALL' constant for ix86 (where it is infinity).
+   Used by <stdlib.h> and <math.h> functions for overflow.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000, 2004
+   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 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 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_vall.h> directly; include <math.h> instead."
+#endif
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALL     (__builtin_huge_vall())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VALL     (__extension__ 0x1.0p32767L)
+#else
+
+# define __HUGE_VALL_bytes     { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0 }
+
+# define __huge_vall_t union { unsigned char __c[12]; long double __ld; }
+# ifdef __GNUC__
+#  define HUGE_VALL    (__extension__ \
+                        ((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld)
+# else /* Not GCC.  */
+static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes };
+#  define HUGE_VALL    (__huge_vall.__ld)
+#  endif /* GCC.  */
+
+#endif /* GCC 2.95 */