additional array handling routines

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/smt/smt_value_sort.h

@@ -0,0 +1,37 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    smt_value_sort.h
+
+Abstract:
+
+    Determine if elements of a given sort can be values.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2012-11-25
+
+Revision History:
+
+
+--*/
+
+
+#ifndef __SMT_VALUE_SORT_H__
+#define __SMT_VALUE_SORT_H__
+
+#include "ast.h"
+
+
+namespace smt {
+        
+    bool is_value_sort(ast_manager& m, sort* s);
+
+    bool is_value_sort(ast_manager& m, expr* e);
+    
+};
+
+
+#endif