initialise a memory structure or smth

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

src/util/log.hh

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <iomanip>
+#include <iostream>
+#include <source_location>
+#include <streambuf>
+
+namespace logging {
+enum class Level {
+    Debug,
+    Info,
+    Warn,
+    Error,
+};
+
+class Logger {
+  public:
+    Logger(std::ostream& os = std::clog);
+
+    template<typename... Args>
+    void print(Level level, Args&&... args) {
+        set_level(level);
+        (os << ... << args);
+        reset_level();
+        os << std::endl;
+    }
+
+  private:
+    std::ostream& os;
+    void set_level(Level level);
+    void reset_level();
+};
+}
+
+extern logging::Logger logger;
+
+#define log_debug(...) logger.print(logging::Level::Debug, __VA_ARGS__)
+#define log_info(...) logger.print(logging::Level::Info, __VA_ARGS__)
+#define log_warn(...) logger.print(logging::Level::Warn, __VA_ARGS__)
+#define log_error(...) logger.print(logging::Level::Error, __VA_ARGS__)
+#define log(...) log_info(__VA_ARGS__)
+#define debug(value) log_debug(#value, " = ", value)