#include "hash_fun.h"
#include "expr.h"
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Author: Clark Barrett
Created: Tue Nov 26 00:27:40 2002
License to use, copy, modify, sell and/or distribute this software and its documentation for any purpose is hereby granted without royalty, subject to the terms and conditions defined in the LICENSE file provided with this distribution.
Define std::hash<Expr> and std::hash<std::string> for hash_map and hash_set over Expr class.
Definition in file expr_hash.h.