Blame sysdeps/powerpc/fpu/fesetexcept.c

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/* Set given exception flags.  PowerPC version.
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   Copyright (C) 2016-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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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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fesetexcept (int excepts)
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{
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  fenv_union_t u, n;
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  u.fenv = fegetenv_register ();
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  n.l = (u.l
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	 | (excepts & FPSCR_STICKY_BITS)
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	 /* Turn FE_INVALID into FE_INVALID_SOFTWARE.  */
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	 | (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
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	    & FE_INVALID_SOFTWARE));
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  if (n.l != u.l)
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    {
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      fesetenv_register (n.fenv);
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      /* Deal with FE_INVALID_SOFTWARE not being implemented on some chips.  */
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      if (excepts & FE_INVALID)
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	feraiseexcept (FE_INVALID);
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    }
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  return 0;
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}