fderivative wasn't printed correctly

[ginac.git] / ginac / fderivative.cpp

diff --git a/ginac/fderivative.cpp b/ginac/fderivative.cpp
index e33ec963c4299ec701f53d7e2bc9c4627a598abc..339bc30c15c6f772a1a698260b6ad1df7fa4a71f 100644 (file)
--- a/ginac/fderivative.cpp
+++ b/ginac/fderivative.cpp
@@ -95,6 +95,12 @@ DEFAULT_UNARCHIVE(fderivative)
 // functions overriding virtual functions from base classes
 //////////
 
+void fderivative::print(const print_context & c, unsigned level) const
+{
+       // class function overrides print(), but we don't want that
+       basic::print(c, level);
+}
+
 void fderivative::do_print(const print_context & c, unsigned level) const
 {
        c.s << "D[";