| /* Raise given exceptions. |
| Copyright (C) 1997 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public License as |
| published by the Free Software Foundation; either version 2 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 |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <fenv_libc.h> |
| |
| void |
| feraiseexcept (int excepts) |
| { |
| fenv_union_t u; |
| |
| /* Raise exceptions represented by EXCEPTS. It is the responsibility of |
| the OS to ensure that if multiple exceptions occur they are fed back |
| to this process in the proper way; this can happen in hardware, |
| anyway (in particular, inexact with overflow or underflow). */ |
| |
| /* Get the current state. */ |
| u.fenv = fegetenv_register (); |
| |
| /* Add the exceptions */ |
| u.l[1] = (u.l[1] |
| | excepts & FPSCR_STICKY_BITS |
| /* Turn FE_INVALID into FE_INVALID_SOFTWARE. */ |
| | excepts << (31 - 21) - (31 - 24) & FE_INVALID_SOFTWARE); |
| |
| /* Store the new status word (along with the rest of the environment), |
| triggering any appropriate exceptions. */ |
| fesetenv_register (u.fenv); |
| } |