Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | /* Determine floating-point rounding mode within libc. Alpha version. |
|---|---|
| 2 | Copyright (C) 2012-2024 Free Software Foundation, Inc. |
| 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 |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef ALPHA_GET_ROUNDING_MODE_H |
| 20 | #define ALPHA_GET_ROUNDING_MODE_H 1 |
| 21 | |
| 22 | #include <fenv.h> |
| 23 | #include <fenv_libc.h> |
| 24 | |
| 25 | /* Return the floating-point rounding mode. */ |
| 26 | |
| 27 | static inline int |
| 28 | get_rounding_mode (void) |
| 29 | { |
| 30 | unsigned long fpcr; |
| 31 | __asm__ __volatile__("excb; mf_fpcr %0" : "=f"(fpcr)); |
| 32 | return (fpcr >> FPCR_ROUND_SHIFT) & 3; |
| 33 | } |
| 34 | |
| 35 | #endif /* get-rounding-mode.h */ |
| 36 |
Warning: This file is not a C or C++ file. It does not have highlighting.