Make .eval() evaluate top-level only.

[ginac.git] / ginac / structure.h

diff --git a/ginac/structure.h b/ginac/structure.h
index 1301ad2b25b953a61ef292d6aa25e7152d2417a1..657bf6b98f8da34d82a782f72aa8a2dc4fe3bd68 100644 (file)
--- a/ginac/structure.h
+++ b/ginac/structure.h
@@ -126,7 +126,7 @@ public:
        // All these are just defaults that can be specialized by the user
 public:
        // evaluation
-       ex eval(int level = 0) const override { return hold(); }
+       ex eval() const override { return hold(); }
        ex evalf(int level = 0) const override { return inherited::evalf(level); }
        ex evalm() const override { return inherited::evalm(); }
 protected: