Don't force every algebraic class to implement archiving/unarchiving.

[ginac.git] / ginac / tensor.cpp

diff --git a/ginac/tensor.cpp b/ginac/tensor.cpp
index 22b3e73040f371c732bc90b1c9ef95e6f24037d3..259af3e45d3a579639f1712e7b5100bf9123d9e7 100644 (file)
--- a/ginac/tensor.cpp
+++ b/ginac/tensor.cpp
@@ -96,17 +96,12 @@ tensepsilon::tensepsilon(bool mink, bool ps) : minkowski(mink), pos_sig(ps)
 // archiving
 //////////
 
-DEFAULT_ARCHIVING(tensor)
-DEFAULT_ARCHIVING(tensdelta)
-DEFAULT_ARCHIVING(tensmetric)
-DEFAULT_ARCHIVING(spinmetric)
-DEFAULT_UNARCHIVE(minkmetric)
-DEFAULT_UNARCHIVE(tensepsilon)
-
-minkmetric::minkmetric(const archive_node &n, lst &sym_lst) : inherited(n, sym_lst)
+void minkmetric::read_archive(const archive_node& n, lst& sym_lst)
 {
+       inherited::read_archive(n, sym_lst);
        n.find_bool("pos_sig", pos_sig);
 }
+GINAC_BIND_UNARCHIVER(minkmetric);
 
 void minkmetric::archive(archive_node &n) const
 {
@@ -114,11 +109,13 @@ void minkmetric::archive(archive_node &n) const
        n.add_bool("pos_sig", pos_sig);
 }
 
-tensepsilon::tensepsilon(const archive_node &n, lst &sym_lst) : inherited(n, sym_lst)
+void tensepsilon::read_archive(const archive_node& n, lst& sym_lst)
 {
+       inherited::read_archive(n, sym_lst);
        n.find_bool("minkowski", minkowski);
        n.find_bool("pos_sig", pos_sig);
 }
+GINAC_BIND_UNARCHIVER(tensepsilon);
 
 void tensepsilon::archive(archive_node &n) const
 {
@@ -127,6 +124,10 @@ void tensepsilon::archive(archive_node &n) const
        n.add_bool("pos_sig", pos_sig);
 }
 
+GINAC_BIND_UNARCHIVER(tensdelta);
+GINAC_BIND_UNARCHIVER(tensmetric);
+GINAC_BIND_UNARCHIVER(spinmetric);
+
 //////////
 // functions overriding virtual functions from base classes
 //////////