indexed::eval: use standard C++ RTTI.

Custom RTTI considered harmful, part 3.

diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index aa85003..df89f12 100644 (file)
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -299,7 +299,7 @@ ex indexed::eval(int level) const
                return f * thiscontainer(v);
        }
 
-       if(this->tinfo()==&indexed::tinfo_static && seq.size()==1)
+       if((typeid(*this) == typeid(indexed)) && seq.size()==1)
                return base;
 
        // Canonicalize indices according to the symmetry properties