add: graphs et rushs

1 files changed, 33 insertions, 0 deletions

diff --git a/graphs/cpp/singleton/singleton.hh b/graphs/cpp/singleton/singleton.hh
new file mode 100644
index 0000000..715a85f
--- /dev/null
+++ b/graphs/cpp/singleton/singleton.hh
@@ -0,0 +1,33 @@
+//
+// Created by martial.simon on 2/27/25.
+//
+
+#pragma once
+#include <string>
+
+template <typename T>
+class Singleton
+{
+protected:
+    Singleton() = default;
+
+private:
+    Singleton(const Singleton<T>&) = delete;
+    Singleton& operator=(const Singleton<T>&) = delete;
+
+public:
+    static T& instance();
+};
+
+class Logger : public Singleton<Logger>
+{
+    Logger() = default;
+    friend class Singleton<Logger>;
+
+public:
+    void open_log_file(const std::string& file);
+    void write_to_log_file();
+    void close_log_file();
+};
+
+#include "singleton.hxx"
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