chore: Add course material

2026-10-05 11:27:21 +02:00
parent 971813c351
commit e8241fd1ff
660 changed files with 26658 additions and 1 deletions
@@ -0,0 +1,17 @@
+
+
+#ifndef ENTRYVISITOR_H
+#define ENTRYVISITOR_H
+
+class PersonEntry;
+class CompanyEntry;
+class GroupEntry;
+
+class EntryVisitor {
+  public:
+    virtual void visit(const PersonEntry &) = 0;
+    virtual void visit(const CompanyEntry &) = 0;
+    virtual void visit(const GroupEntry &) = 0;
+};
+
+#endif