implemented relational::subs()

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index ebad1f76bc84a34fae5e9fd3df81b24690d73bf4..ed3dbff6abba7b13ee61d3980527ef8b84805f2f 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -54,8 +54,10 @@ public:
        void print(const print_context & c, unsigned level = 0) const;
        unsigned precedence(void) const {return 20;}
        bool info(unsigned inf) const;
-       unsigned nops() const;
-       ex & let_op(int i);
+       size_t nops() const;
+       ex op(size_t i) const;
+       ex map(map_function & f) const;
+       ex subs(const lst & ls, const lst & lr, unsigned options = 0) const;
        ex eval(int level=0) const;
 
 protected: