* All your dependent bases are belong to us!

[ginac.git] / ginac / structure.h

diff --git a/ginac/structure.h b/ginac/structure.h
index b929e88caceb61cc2bab30046d1664c77c711d29..dbe97d4226740060ef3a329a5b8913534ef2a117 100644 (file)
--- a/ginac/structure.h
+++ b/ginac/structure.h
@@ -26,6 +26,7 @@
 #include <functional>
 
 #include "ex.h"
+#include "operators.h"
 #include "print.h"
 
 namespace GiNaC {
@@ -132,7 +133,7 @@ public:
        ex evalf(int level = 0) const { return inherited::evalf(level); }
        ex evalm() const { return inherited::evalm(); }
 protected:
-       ex eval_ncmul(const exvector & v) const { return hold_ncmul(v); }
+       ex eval_ncmul(const exvector & v) const { return this->hold_ncmul(v); }
 public:
        ex eval_indexed(const basic & i) const { return i.hold(); }