| 1 | /* Set floating-point environment exception handling. |
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| 2 | Copyright (C) 1997-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library. If not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <fenv_libc.h> |
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| 20 | |
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| 21 | int |
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| 22 | __fesetexceptflag (const fexcept_t *flagp, int excepts) |
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| 23 | { |
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| 24 | unsigned long int tmp; |
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| 25 | |
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| 26 | /* Get the current exception state. */ |
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| 27 | tmp = __ieee_get_fp_control (); |
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| 28 | |
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| 29 | /* Set all the bits that were called for. */ |
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| 30 | tmp ^= (tmp ^ *flagp) & excepts & SWCR_STATUS_MASK; |
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| 31 | |
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| 32 | /* And store it back. */ |
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| 33 | __ieee_set_fp_control (tmp); |
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| 34 | |
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| 35 | /* Success. */ |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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| 39 | #include <shlib-compat.h> |
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| 40 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) |
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| 41 | strong_alias (__fesetexceptflag, __old_fesetexceptflag) |
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| 42 | compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1); |
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| 43 | #endif |
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| 44 | |
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| 45 | versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2); |
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| 46 | |
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