matherr.c revision 151497
1/* Copyright (C) 1989, 1990, 1991, 1992, 2001 Free Software Foundation, Inc. 2 Written by James Clark (jjc@jclark.com) 3 4This file is part of groff. 5 6groff is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 2, or (at your option) any later 9version. 10 11groff is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License along 17with groff; see the file COPYING. If not, write to the Free Software 18Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 19 20#ifdef HAVE_CONFIG_H 21#include <config.h> 22#endif 23 24#include <math.h> 25#include <errno.h> 26 27#ifdef HAVE_STRUCT_EXCEPTION 28#ifdef TLOSS 29 30int matherr(exc) 31struct exception *exc; 32{ 33 switch (exc->type) { 34 case SING: 35 case DOMAIN: 36 errno = EDOM; 37 break; 38 case OVERFLOW: 39 case UNDERFLOW: 40 case TLOSS: 41 case PLOSS: 42 errno = ERANGE; 43 break; 44 } 45 return 1; 46} 47 48#endif /* TLOSS */ 49#endif /* HAVE_STRUCT_EXCEPTION */ 50