projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 67236aeb | 1 | /* Floating point environment, RISC-V version. |
| 04277e02 | 2 | Copyright (C) 1998-2019 Free Software Foundation, Inc. |
| 67236aeb PD |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 16 | License along with the GNU C Library. If not, see | |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 67236aeb PD |
18 | |
| 19 | #ifndef _FENV_H | |
| 20 | # error "Never use <bits/fenv.h> directly; include <fenv.h> instead." | |
| 21 | #endif | |
| 22 | ||
| 23 | enum | |
| 24 | { | |
| 25 | FE_INEXACT = | |
| 26 | #define FE_INEXACT (0x01) | |
| 27 | FE_INEXACT, | |
| 28 | FE_UNDERFLOW = | |
| 29 | #define FE_UNDERFLOW (0x02) | |
| 30 | FE_UNDERFLOW, | |
| 31 | FE_OVERFLOW = | |
| 32 | #define FE_OVERFLOW (0x04) | |
| 33 | FE_OVERFLOW, | |
| 34 | FE_DIVBYZERO = | |
| 35 | #define FE_DIVBYZERO (0x08) | |
| 36 | FE_DIVBYZERO, | |
| 37 | FE_INVALID = | |
| 38 | #define FE_INVALID (0x10) | |
| 39 | FE_INVALID | |
| 40 | }; | |
| 41 | ||
| 42 | #define FE_ALL_EXCEPT \ | |
| 43 | (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) | |
| 44 | ||
| 45 | enum | |
| 46 | { | |
| 47 | FE_TONEAREST = | |
| 48 | #define FE_TONEAREST (0x0) | |
| 49 | FE_TONEAREST, | |
| 50 | FE_TOWARDZERO = | |
| 51 | #define FE_TOWARDZERO (0x1) | |
| 52 | FE_TOWARDZERO, | |
| 53 | FE_DOWNWARD = | |
| 54 | #define FE_DOWNWARD (0x2) | |
| 55 | FE_DOWNWARD, | |
| 56 | FE_UPWARD = | |
| 57 | #define FE_UPWARD (0x3) | |
| 58 | FE_UPWARD | |
| 59 | }; | |
| 60 | ||
| 61 | ||
| 62 | typedef unsigned int fexcept_t; | |
| 63 | typedef unsigned int fenv_t; | |
| 64 | ||
| 65 | /* If the default argument is used we use this value. */ | |
| 66 | #define FE_DFL_ENV ((__const fenv_t *) -1) | |
| 67 | ||
| 0175c9e9 | 68 | #if __GLIBC_USE (IEC_60559_BFP_EXT_C2X) |
| 67236aeb PD |
69 | /* Type representing floating-point control modes. */ |
| 70 | typedef unsigned int femode_t; | |
| 71 | ||
| 72 | /* Default floating-point control modes. */ | |
| 73 | # define FE_DFL_MODE ((const femode_t *) -1L) | |
| 74 | #endif |