50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* Install given floating-point environment and raise exceptions.
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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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Contributed by Ulrich Drepper <drepper@cygnus.com>, 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <fenv_libc.h>
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#include <bp-sym.h>
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int
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__feupdateenv (const fenv_t *envp)
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{
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fenv_union_t old, new;
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/* Save the currently set exceptions. */
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new.fenv = *envp;
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old.fenv = fegetenv_register ();
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/* Copy the set exceptions from `old' to `new'. */
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new.l[1] = (new.l[1] & 0xE00000FF) | (old.l[1] & 0x1FFFFF00);
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/* Atomically enable and raise (if appropriate) exceptions set in `new'. */
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fesetenv_register (new.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 (__feupdateenv, __old_feupdateenv)
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compat_symbol (libm, BP_SYM (__old_feupdateenv), BP_SYM (feupdateenv), GLIBC_2_1);
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#endif
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versioned_symbol (libm, BP_SYM (__feupdateenv), BP_SYM (feupdateenv), GLIBC_2_2);
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