diff options
author | Mike Frysinger <vapier@gentoo.org> | 2006-08-23 19:25:34 +0000 |
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committer | Mike Frysinger <vapier@gentoo.org> | 2006-08-23 19:25:34 +0000 |
commit | e47414d975e0ba1fe3a5f329756a20daaf31fefa (patch) | |
tree | 5bd13dbe668b130ae6bb38afb9e260aa94e4c3de /libc/sysdeps/linux/ia64/bits/fenv.h | |
parent | a93c8678684329c262eff95d15561c0262fcf4c1 (diff) |
import new headers from upstream via psm
Diffstat (limited to 'libc/sysdeps/linux/ia64/bits/fenv.h')
-rw-r--r-- | libc/sysdeps/linux/ia64/bits/fenv.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/ia64/bits/fenv.h b/libc/sysdeps/linux/ia64/bits/fenv.h new file mode 100644 index 000000000..32515f079 --- /dev/null +++ b/libc/sysdeps/linux/ia64/bits/fenv.h @@ -0,0 +1,87 @@ +/* Copyright (C) 1999, 2000 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FENV_H +# error "Never use <bits/fenv.h> directly; include <fenv.h> instead." +#endif + + +/* Define bits representing the exception. We use the bit positions of + the appropriate bits in the FPSR... (Tahoe EAS 2.4 5-4)*/ + +enum + { + FE_INEXACT = 1UL << 5, +#define FE_INEXACT FE_INEXACT + + FE_UNDERFLOW = 1UL << 4, +#define FE_UNDERFLOW FE_UNDERFLOW + + FE_OVERFLOW = 1UL << 3, +#define FE_OVERFLOW FE_OVERFLOW + + FE_DIVBYZERO = 1UL << 2, +#define FE_DIVBYZERO FE_DIVBYZERO + + FE_UNNORMAL = 1UL << 1, +#define FE_UNNORMAL FE_UNNORMAL + + FE_INVALID = 1UL << 0, +#define FE_INVALID FE_INVALID + + FE_ALL_EXCEPT = + (FE_INEXACT | FE_UNDERFLOW | FE_OVERFLOW | FE_DIVBYZERO | FE_UNNORMAL | FE_INVALID) +#define FE_ALL_EXCEPT FE_ALL_EXCEPT + }; + + +enum + { + FE_TOWARDZERO = 3, +#define FE_TOWARDZERO FE_TOWARDZERO + + FE_UPWARD = 2, +#define FE_UPWARD FE_UPWARD + + FE_DOWNWARD = 1, +#define FE_DOWNWARD FE_DOWNWARD + + FE_TONEAREST = 0, +#define FE_TONEAREST FE_TONEAREST + }; + + +/* Type representing exception flags. */ +typedef unsigned long int fexcept_t; + +/* Type representing floating-point environment. */ +typedef unsigned long int fenv_t; + +/* If the default argument is used we use this value. */ +#define FE_DFL_ENV ((__const fenv_t *) 0xc009804c0270033fUL) + +#ifdef __USE_GNU +/* Floating-point environment where only FE_UNNORMAL is masked since this + exception is not generally supported by glibc. */ +# define FE_NOMASK_ENV ((__const fenv_t *) 0xc009804c02700302UL) + +/* Floating-point environment with (processor-dependent) non-IEEE + floating point. In this case, turning on flush-to-zero mode for + s0, s2, and s3. */ +# define FE_NONIEEE_ENV ((__const fenv_t *) 0xc009a04d0270037fUL) +#endif |