9b8a727776
feholdexcept. * sysdeps/alpha/fpu/feholdexcpt.c: Add libm_hidden_def. * sysdeps/alpha/fpu/fesetround.c: Likewise. * sysdeps/generic/feholdexcpt.c: Likewise. * sysdeps/generic/fesetround.c: Likewise. * sysdeps/i386/fpu/feholdexcpt.c: Likewise. * sysdeps/i386/fpu/fesetround.c: Likewise. * sysdeps/ia64/fpu/feholdexcpt.c: Likewise. * sysdeps/ia64/fpu/fesetround.c: Likewise. * sysdeps/powerpc/fpu/feholdexcpt.c: Likewise. * sysdeps/powerpc/fpu/fesetround.c: Likewise. * sysdeps/s390/fpu/feholdexcpt.c: Likewise. * sysdeps/s390/fpu/fesetround.c: Likewise. * sysdeps/sh/sh4/fpu/feholdexcpt.c: Likewise. * sysdeps/sh/sh4/fpu/fesetround.c: Likewise. * sysdeps/sparc/fpu/feholdexcpt.c: Likewise. * sysdeps/sparc/fpu/fesetround.c: Likewise. * sysdeps/x86_64/fpu/feholdexcpt.c: Likewise. * sysdeps/x86_64/fpu/fesetround.c: Likewise. * sysdeps/generic/s_significand.c (__significand): Use __ilogb not ilogb. * sysdeps/generic/s_significandf.c (__significandf): Use __ilogbf not ilogbf.
36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/* Store current floating-point environment and clear exceptions.
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Copyright (C) 2000, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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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 <fpu_control.h>
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int feholdexcept (fenv_t *envp)
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{
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/* Store the environment. */
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fegetenv (envp);
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/* Clear the current sticky bits as more than one exception
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may be generated. */
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envp->fpc &= ~(FPC_FLAGS_MASK | FPC_DXC_MASK);
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/* Hold from generating fpu exceptions temporarily. */
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_FPU_SETCW ((envp->fpc & ~(FE_ALL_EXCEPT << FPC_EXCEPTION_MASK_SHIFT)));
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return 0;
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}
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libm_hidden_def (feholdexcept)
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