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

[ginac.git] / ginac / ncmul.h

diff --git a/ginac/ncmul.h b/ginac/ncmul.h
index 910142745ca215a59253ba58724edad47cf48209..5e0a5d1950037a6851cb14ed7659816778015177 100644 (file)
--- a/ginac/ncmul.h
+++ b/ginac/ncmul.h
@@ -24,6 +24,7 @@
 #define __GINAC_NCMUL_H__
 
 #include "exprseq.h"
+#include "archive.h"
 
 namespace GiNaC {
 
@@ -86,6 +87,7 @@ protected:
 public:
        const exvector & get_factors() const;
 };
+GINAC_DECLARE_UNARCHIVER(ncmul);
 
 // friend funtions