2013-11-28 18:01:41 +00:00
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/* Store current floating-point environment and clear exceptions for
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atomic compound assignment.
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2017-01-01 00:14:16 +00:00
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Copyright (C) 2013-2017 Free Software Foundation, Inc.
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2013-11-28 18:01:41 +00:00
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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 "soft-fp.h"
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#include "soft-supp.h"
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void
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__atomic_feholdexcept (fenv_t *envp)
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{
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fenv_union_t u;
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u.l[0] = __sim_exceptions_thread;
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/* The rounding mode is not changed by arithmetic, so no need to
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save it. */
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u.l[1] = __sim_disabled_exceptions_thread;
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*envp = u.fenv;
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/* This function postdates the global variables being turned into
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compat symbols, so no need to set them. */
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__sim_exceptions_thread = 0;
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__sim_disabled_exceptions_thread = FE_ALL_EXCEPT;
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}
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