add some logic tools

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6189 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/applications/mod_expr/exprconf.h

@@ -0,0 +1,29 @@
+/*
+    File: exprconf.h
+    Auth: Brian Allen Vanderburg II
+    Date: Thursday, October 20, 2005
+    Desc: Configuration for ExprEval
+
+    This file is part of ExprEval.
+*/
+
+#ifndef __BAVII_EXPRCONF_H
+#define __BAVII_EXPRCONF_H
+
+/*
+    Error checking level
+
+    0: Don't check any errors (don't use errno).  Divide by 0
+    is avoided and the part that divides by 0 is 0. For example
+    '4+1/0' is 4.
+
+    1: Check math errors.
+*/
+#define EXPR_ERROR_LEVEL_NONE 0
+#define EXPR_ERROR_LEVEL_CHECK 1
+
+#ifndef EXPR_ERROR_LEVEL
+#define EXPR_ERROR_LEVEL EXPR_ERROR_LEVEL_CHECK
+#endif
+
+#endif /* __BAVII_EXPRCONF_H */