1 files changed, 53 insertions, 0 deletions
diff --git a/win/tclWinMtherr.c b/win/tclWinMtherr.c
new file mode 100644
index 0000000..b90c0f2
--- /dev/null
+++ b/win/tclWinMtherr.c
@@ -0,0 +1,53 @@
+/* 
+ * tclWinMtherr.c --
+ *
+ *	This function provides a default implementation of the
+ *	_matherr function for Borland C++.
+ *
+ * Copyright (c) 1995 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id: tclWinMtherr.c,v 1.5 2002/05/31 22:20:22 dgp Exp $
+ */
+
+#include "tclWinInt.h"
+#include <math.h>
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * _matherr --
+ *
+ *	This procedure is invoked by Borland C++ when certain
+ *	errors occur in mathematical functions.  This procedure
+ *	replaces the default implementation which generates pop-up
+ *	warnings.
+ *
+ * Results:
+ *	Returns 1 to indicate that we've handled the error
+ *	locally.
+ *
+ * Side effects:
+ *	Sets errno based on what's in xPtr.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+_matherr(xPtr)
+    struct exception *xPtr;	/* Describes error that occurred. */
+{
+    if ((xPtr->type == DOMAIN)
+#ifdef __BORLANDC__
+	    || (xPtr->type == TLOSS)
+#endif
+	    || (xPtr->type == SING)) {
+	errno = EDOM;
+    } else {
+	errno = ERANGE;
+    }
+    return 1;
+}