57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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/* Install given floating-point environment.
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Copyright (C) 1997-2022 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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<https://www.gnu.org/licenses/>. */
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#include <fenv.h>
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#include <fenv_private.h>
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#include <shlib-compat.h>
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int
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__fesetenv (const fenv_t *envp)
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{
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fenv_t dummy;
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/* Put these constants in memory explicitly, so as to cope with a
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-fPIC bug as of gcc 970624. Making them automatic is quicker
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than loading up the pic register in this instance. */
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if (envp == FE_DFL_ENV)
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{
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dummy = 0;
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envp = &dummy;
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}
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else if (envp == FE_NOMASK_ENV)
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{
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dummy = 0x1f << 23;
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envp = &dummy;
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}
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__fenv_ldfsr (*envp);
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/* Success. */
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return 0;
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}
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#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
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strong_alias (__fesetenv, __old_fesetenv)
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compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
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#endif
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libm_hidden_def (__fesetenv)
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libm_hidden_ver (__fesetenv, fesetenv)
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versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);
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