/* Raise given exceptions.   Copyright (C) 2000, 2002 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com) and   Martin Schwidefsky (schwidefsky@de.ibm.com).   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>#include <float.h>#include <math.h>static __inline__ voidfexceptdiv (float d, float e){  __asm__ __volatile__ ("debr %0,%1" : : "f" (d), "f" (e) );}static __inline__ voidfexceptadd (float d, float e){  __asm__ __volatile__ ("aebr %0,%1" : : "f" (d), "f" (e) );}intferaiseexcept (int excepts){  /* Raise exceptions represented by EXPECTS.  But we must raise only     one signal at a time.  It is important that 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)    fexceptdiv (0.0, 0.0);  /* Next: division by zero.  */  if (FE_DIVBYZERO & excepts)    fexceptdiv (1.0, 0.0);  /* Next: overflow.  */  if (FE_OVERFLOW & excepts)    /* I don't think we can do the same trick as intel so we will have       to live with inexact coming also.  */    fexceptadd (FLT_MAX, 1.0e32);  /* Next: underflow.  */  if (FE_UNDERFLOW & excepts)    fexceptdiv (FLT_MIN, 3.0);  /* Last: inexact.  */  if (FE_INEXACT & excepts)    fexceptdiv (2.0, 3.0);  /* Success.  */  return 0;}libm_hidden_def (feraiseexcept)