projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f10eff58 | 1 | /* Clear given exceptions in current floating-point environment. |
| 038f2426 | 2 | Copyright (C) 1997,98,99,2000,01,05,11 Free Software Foundation, Inc. |
| f10eff58 DJ |
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 | ||
| 22423683 | 15 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| f10eff58 DJ |
18 | |
| 19 | #include <fenv.h> | |
| 20 | #include <fpu_control.h> | |
| 21 | ||
| 22 | #include <unistd.h> | |
| 23 | #include <ldsodefs.h> | |
| 24 | #include <dl-procinfo.h> | |
| b610dc84 | 25 | #include <sysdep.h> |
| f10eff58 DJ |
26 | |
| 27 | int | |
| 28 | __feclearexcept (int excepts) | |
| 29 | { | |
| b610dc84 | 30 | if (GLRO (dl_hwcap) & HWCAP_ARM_VFP) |
| f10eff58 DJ |
31 | { |
| 32 | unsigned long int temp; | |
| 33 | ||
| 34 | /* Mask out unsupported bits/exceptions. */ | |
| 35 | excepts &= FE_ALL_EXCEPT; | |
| 36 | ||
| 37 | /* Get the current floating point status. */ | |
| 38 | _FPU_GETCW (temp); | |
| 39 | ||
| 40 | /* Clear the relevant bits. */ | |
| 41 | temp = (temp & ~FE_ALL_EXCEPT) | (temp & FE_ALL_EXCEPT & ~excepts); | |
| 42 | ||
| 43 | /* Put the new data in effect. */ | |
| 44 | _FPU_SETCW (temp); | |
| 45 | ||
| 46 | /* Success. */ | |
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 038f2426 JM |
50 | /* Unsupported, so fail unless nothing needs to be done. */ |
| 51 | return (excepts != 0); | |
| f10eff58 DJ |
52 | } |
| 53 | ||
| 54 | #include <shlib-compat.h> | |
| 55 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
| 56 | strong_alias (__feclearexcept, __old_feclearexcept) | |
| 57 | compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1); | |
| 58 | #endif | |
| 59 | ||
| 60 | versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); |