| /* Floating point environment, RISC-V version. |
| Copyright (C) 1998-2018 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 |
| |
| 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) |
| |
| enum |
| { |
| FE_TONEAREST = |
| #define FE_TONEAREST (0x0) |
| FE_TONEAREST, |
| FE_TOWARDZERO = |
| #define FE_TOWARDZERO (0x1) |
| FE_TOWARDZERO, |
| FE_DOWNWARD = |
| #define FE_DOWNWARD (0x2) |
| FE_DOWNWARD, |
| FE_UPWARD = |
| #define FE_UPWARD (0x3) |
| FE_UPWARD |
| }; |
| |
| |
| typedef unsigned int fexcept_t; |
| typedef unsigned int fenv_t; |
| |
| /* If the default argument is used we use this value. */ |
| #define FE_DFL_ENV ((__const fenv_t *) -1) |
| |
| #if __GLIBC_USE (IEC_60559_BFP_EXT) |
| /* Type representing floating-point control modes. */ |
| typedef unsigned int femode_t; |
| |
| /* Default floating-point control modes. */ |
| # define FE_DFL_MODE ((const femode_t *) -1L) |
| #endif |
