- ex::series() catches and re-throws exceptions happening during expansion

[ginac.git] / ginac / indexed.cpp

diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index 41c2b1f0681c729edb666e9a5922ede279fb6ce4..0f6726e543a633ed93bad6dcb3b8c550af6710ec 100644 (file)
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -27,9 +27,9 @@
 #include "idx.h"
 #include "debugmsg.h"
 
-#ifndef NO_GINAC_NAMESPACE
+#ifndef NO_NAMESPACE_GINAC
 namespace GiNaC {
-#endif // ndef NO_GINAC_NAMESPACE
+#endif // ndef NO_NAMESPACE_GINAC
 
 GINAC_IMPLEMENT_REGISTERED_CLASS(indexed, exprseq)
 
@@ -221,6 +221,13 @@ exvector indexed::get_indices(void) const
 
 // protected
 
+/** Implementation of ex::diff() for an indexed object. It always returns 0.
+ *  @see ex::diff */
+ex indexed::derivative(const symbol & s) const
+{
+        return _ex0();
+}
+
 int indexed::compare_same_type(const basic & other) const
 {
     GINAC_ASSERT(is_of_type(other,indexed));
@@ -327,6 +334,6 @@ bool indexed::all_of_type_idx(void) const
 const indexed some_indexed;
 const type_info & typeid_indexed=typeid(some_indexed);
 
-#ifndef NO_GINAC_NAMESPACE
+#ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC
-#endif // ndef NO_GINAC_NAMESPACE
+#endif // ndef NO_NAMESPACE_GINAC