NetBSD/gnu/usr.bin/groff/libgroff/matherr.c

50 lines
1.2 KiB
C

/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
groff 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 General Public License
for more details.
You should have received a copy of the GNU General Public License along
with groff; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef lint
static char rcsid[] = "$Id: matherr.c,v 1.2 1993/08/02 17:44:05 mycroft Exp $";
#endif /* not lint */
#include <math.h>
#include <errno.h>
#ifdef HAVE_STRUCT_EXCEPTION
#ifdef TLOSS
int matherr(exc)
struct exception *exc;
{
switch (exc->type) {
case SING:
case DOMAIN:
errno = EDOM;
break;
case OVERFLOW:
case UNDERFLOW:
case TLOSS:
case PLOSS:
errno = ERANGE;
break;
}
return 1;
}
#endif /* TLOSS */
#endif /* HAVE_STRUCT_EXCEPTION */