* Enable EXTRACT_ALL for LaTeX.

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index fb1111580a4afb085a12ea9017aedfc98345e18e..b04d11c70de99003c33816b8c9e947f55e648941 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -63,6 +63,7 @@ protected:
        bool match_same_type(const basic & other) const;
        unsigned return_type(void) const;
        unsigned return_type_tinfo(void) const;
+       unsigned calchash(void) const;
 
        // new virtual functions which can be overridden by derived classes
 public: