| /* Copyright (C) 1997, 1998 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 _FENV_H |
| # error "Never use <bits/fenv.h> directly; include <fenv.h> instead." |
| #endif |
| |
| |
| /* Here should be the exception be defined: |
| FE_INVALID |
| FE_DIVBYZERO |
| FE_OVERFLOW |
| FE_UNDERFLOW |
| FE_INEXACT |
| We define no macro which signals no exception is supported. */ |
| |
| #define FE_ALL_EXCEPT 0 |
| |
| |
| /* Here should the rounding modes be defined: |
| FE_TONEAREST |
| FE_DOWNWARD |
| FE_UPWARD |
| FE_TOWARDZERO |
| We define no macro which signals no rounding mode is selectable. */ |
| |
| |
| /* Type representing exception flags. |
| XXX Probably we should also include the signal handler here. */ |
| typedef struct |
| { |
| unsigned int flags; |
| } |
| fexcept_t; |
| |
| |
| /* Type representing floating-point environment. */ |
| typedef struct |
| { |
| fexcept_t excepts; |
| /* XXX I don't know what else we should save. */ |
| } |
| fenv_t; |
| |
| /* If the default argument is used we use this value. */ |
| #define FE_DFL_ENV ((fenv_t *) -1l) |