normal() uses an additional reverse lookup map

[ginac.git] / ginac / symbol.h

diff --git a/ginac/symbol.h b/ginac/symbol.h
index 8cd738b5688cf04e5786c43485dece1f5864f10f..55f2826ccc8073c2749b9cee6db1e6a18770c20a 100644 (file)
--- a/ginac/symbol.h
+++ b/ginac/symbol.h
@@ -68,7 +68,7 @@ public:
        ex evalf(int level = 0) const { return *this; } // overwrites basic::evalf() for performance reasons
        ex series(const relational & s, int order, unsigned options = 0) const;
        ex subs(const exmap & m, unsigned options = 0) const { return subs_one_level(m, options); } // overwrites basic::subs() for performance reasons
-       ex normal(exmap & repl, int level = 0) const;
+       ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
        ex to_rational(lst &repl_lst) const;
        ex to_polynomial(lst &repl_lst) const;
 protected: