diff options
Diffstat (limited to 'sysdeps/powerpc/ftestexcept.c')
-rw-r--r-- | sysdeps/powerpc/ftestexcept.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/powerpc/ftestexcept.c b/sysdeps/powerpc/ftestexcept.c new file mode 100644 index 0000000000..52733f7ae7 --- /dev/null +++ b/sysdeps/powerpc/ftestexcept.c @@ -0,0 +1,38 @@ +/* Test exception in current environment. + 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> + +int +fetestexcept (int excepts) +{ + fenv_union_t u; + int flags; + + /* Get the current state. */ + u.fenv = fegetenv_register (); + + /* Find the bits that indicate exceptions have occurred. */ + flags = u.l[1] & FPSCR_STICKY_BITS; + + /* Set the FE_INVALID bit if any of the FE_INVALID_* bits are set. */ + flags |= ((u.l[1] & FE_ALL_INVALID) != 0) << 31-24; + + return flags & excepts; +} |