1 files changed, 45 insertions, 0 deletions
diff --git a/contrib/groff/libgroff/matherr.c b/contrib/groff/libgroff/matherr.c
new file mode 100644
index 0000000..b0097b8
--- /dev/null
+++ b/contrib/groff/libgroff/matherr.c
@@ -0,0 +1,45 @@
+/* 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#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 */