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47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Set floating-point environment exception handling.
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Copyright (C) 1997-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Richard Henderson <rth@tamu.edu>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <fenv_libc.h>
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int
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__fesetexceptflag (const fexcept_t *flagp, int excepts)
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{
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unsigned long int tmp;
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/* Get the current exception state. */
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tmp = __ieee_get_fp_control ();
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/* Set all the bits that were called for. */
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tmp = (tmp & ~SWCR_STATUS_MASK) | (*flagp & excepts & SWCR_STATUS_MASK);
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/* And store it back. */
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__ieee_set_fp_control (tmp);
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/* Success. */
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return 0;
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}
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#include <shlib-compat.h>
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#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
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strong_alias (__fesetexceptflag, __old_fesetexceptflag)
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compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
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#endif
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versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);
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