diff options
Diffstat (limited to 'sysdeps/sparc/fpu/fraiseexcpt.c')
-rw-r--r-- | sysdeps/sparc/fpu/fraiseexcpt.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c new file mode 100644 index 0000000000..308c9b2e7f --- /dev/null +++ b/sysdeps/sparc/fpu/fraiseexcpt.c @@ -0,0 +1,66 @@ +/* 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.h> +#include <math.h> + +static void +ignore_me(double foo) +{ +} + +void +feraiseexcept (int excepts) +{ + /* Raise exceptions represented by EXPECTS. But we must raise only + one signal at a time. It is important the if the overflow/underflow + exception and the inexact exception are given at the same time, + the overflow/underflow exception follows the inexact exception. */ + + /* First: invalid exception. */ + if ((FE_INVALID & excepts) != 0) + { + /* One example of a invalid operation is 0/0. */ + ignore_me (0.0 / 0.0); + } + + /* Next: division by zero. */ + if ((FE_DIVBYZERO & excepts) != 0) + { + ignore_me (1.0 / 0.0); + } + + /* Next: overflow. */ + if ((FE_OVERFLOW & excepts) != 0) + { + ignore_me (LDBL_MAX * LDBL_MAX); + } + + /* Next: underflow. */ + if ((FE_UNDERFLOW & excepts) != 0) + { + ignore_me (LDBL_MIN / 16.0); + } + + /* Last: inexact. */ + if ((FE_INEXACT & excepts) != 0) + { + ignore_me (1.0 / M_PI); + } +} |