Synced to HEAD:

Fixed bug in comparison of fderivatives.

diff --git a/ginac/fderivative.cpp b/ginac/fderivative.cpp
index 296e2939b64c9ffba8cf0865a1d5b1d6a697f1c4..635e5a2171821e48cd0101d242ab0da356ff76eb 100644 (file)
--- a/ginac/fderivative.cpp
+++ b/ginac/fderivative.cpp
@@ -214,7 +214,7 @@ bool fderivative::match_same_type(const basic & other) const
        GINAC_ASSERT(is_a<fderivative>(other));
        const fderivative & o = static_cast<const fderivative &>(other);
 
-       return parameter_set == o.parameter_set;
+       return parameter_set == o.parameter_set && inherited::match_same_type(other);
 }
 
 } // namespace GiNaC