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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Clear given exceptions in current floating-point environment.
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Copyright (C) 1997,99,2000,01 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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#undef feclearexcept
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int
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__feclearexcept (int excepts)
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{
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fenv_union_t u;
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/* Get the current state. */
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u.fenv = fegetenv_register ();
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/* Clear the relevant bits. */
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u.l[1] = u.l[1] & ~((-(excepts >> (31 - FPSCR_VX) & 1) & FE_ALL_INVALID)
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| (excepts & FPSCR_STICKY_BITS));
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/* Put the new state in effect. */
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fesetenv_register (u.fenv);
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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 (__feclearexcept, __old_feclearexcept)
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compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
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#endif
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versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
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