diff options
author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/ia64/bits/fenv.h | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) |
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/ia64/bits/fenv.h')
-rw-r--r-- | ports/sysdeps/ia64/bits/fenv.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/bits/fenv.h b/ports/sysdeps/ia64/bits/fenv.h new file mode 100644 index 0000000000..342605d8ce --- /dev/null +++ b/ports/sysdeps/ia64/bits/fenv.h @@ -0,0 +1,86 @@ +/* Copyright (C) 1999-2012 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 _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 |