| /* Disable floating-point exceptions. |
| Copyright (C) 2000, 2008 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <fenv_libc.h> |
| |
| int |
| fedisableexcept (int excepts) |
| { |
| fenv_union_t fe; |
| int result, new; |
| |
| result = __fegetexcept (); |
| |
| if ((excepts & FE_ALL_INVALID) == FE_ALL_INVALID) |
| excepts = (excepts | FE_INVALID) & ~ FE_ALL_INVALID; |
| |
| fe.fenv = fegetenv_register (); |
| if (excepts & FE_INEXACT) |
| fe.l[1] &= ~(1 << (31 - FPSCR_XE)); |
| if (excepts & FE_DIVBYZERO) |
| fe.l[1] &= ~(1 << (31 - FPSCR_ZE)); |
| if (excepts & FE_UNDERFLOW) |
| fe.l[1] &= ~(1 << (31 - FPSCR_UE)); |
| if (excepts & FE_OVERFLOW) |
| fe.l[1] &= ~(1 << (31 - FPSCR_OE)); |
| if (excepts & FE_INVALID) |
| fe.l[1] &= ~(1 << (31 - FPSCR_VE)); |
| fesetenv_register (fe.fenv); |
| |
| new = __fegetexcept (); |
| if (new == 0 && result != 0) |
| (void)__fe_mask_env (); |
| |
| if ((new & excepts) != 0) |
| result = -1; |
| return result; |
| } |
