| /* Copyright (C) 1998-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Alexandre Oliva <aoliva@redhat.com> |
| based on the corresponding file in the mips port. |
| |
| 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 EF bit |
| positions of the appropriate bits in the FPCR register. */ |
| enum |
| { |
| FE_INEXACT = |
| #define FE_INEXACT 0x01 |
| FE_INEXACT, |
| FE_UNDERFLOW = |
| #define FE_UNDERFLOW 0x02 |
| FE_UNDERFLOW, |
| FE_OVERFLOW = |
| #define FE_OVERFLOW 0x04 |
| FE_OVERFLOW, |
| FE_DIVBYZERO = |
| #define FE_DIVBYZERO 0x08 |
| FE_DIVBYZERO, |
| FE_INVALID = |
| #define FE_INVALID 0x10 |
| FE_INVALID, |
| }; |
| |
| #define FE_ALL_EXCEPT \ |
| (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) |
| |
| /* The AM33/2.0 FPU supports only Round to nearest. Bits 3<<16 are |
| reserved to represent other rounding modes. */ |
| enum |
| { |
| FE_TONEAREST = |
| #define FE_TONEAREST 0x00000 |
| FE_TONEAREST, |
| }; |
| |
| |
| /* Type representing exception flags. */ |
| typedef unsigned int fexcept_t; |
| |
| |
| /* Type representing floating-point environment. */ |
| typedef unsigned int fenv_t; |
| |
| /* If the default argument is used we use this value. */ |
| #define FE_DFL_ENV ((__const fenv_t *) -1) |
| |
| #ifdef __USE_GNU |
| /* Floating-point environment where none of the exception is masked. */ |
| # define FE_NOMASK_ENV ((__const fenv_t *) -2) |
| #endif |
