/*- * Copyright (c) 1982, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)EXCEPT.c 8.1 (Berkeley) 6/6/93"; #endif /* not lint */ #include <signal.h> /* * catch runtime arithmetic errors */ EXCEPT(signum, type) int signum, type; { signal(SIGFPE, EXCEPT); #ifndef vax ERROR("Overflow, underflow, or division by zero in arithmetic operation\n"); return; #endif notvax #ifdef vax /* * The values for this switch statement come from page 12-5 of * Volume 1 of the 1978 VAX 11/780 Architecture Handbook */ switch (type) { case FPE_INTOVF_TRAP: ERROR("Integer overflow\n"); return; case FPE_INTDIV_TRAP: ERROR("Integer division by zero\n"); return; case FPE_FLTOVF_TRAP: case FPE_FLTOVF_FAULT: ERROR("Real overflow\n"); return; case FPE_FLTDIV_TRAP: case FPE_FLTDIV_FAULT: ERROR("Real division by zero\n"); return; case FPE_FLTUND_TRAP: case FPE_FLTUND_FAULT: ERROR("Real underflow\n"); return; case FPE_DECOVF_TRAP: case FPE_SUBRNG_TRAP: default: ERROR("Undefined arithmetic exception type (%d)\n", type); return; } #endif vax }