Add cmake build instructions

1 files changed, 28 insertions, 0 deletions

diff --git a/src/utility.h b/src/utility.h
new file mode 100644
index 0000000..27ce8e9
--- /dev/null
+++ b/src/utility.h
@@ -0,0 +1,28 @@
+#ifndef CHANGE_UTILITY_H_
+#define CHANGE_UTILITY_H_
+
+#include <ext/stdio_filebuf.h>
+
+#include <iostream>
+
+namespace utility {
+
+class Logger {
+	public:
+		Logger(const int target_fd):
+			buffer(target_fd, std::ios::out),
+			stream(&this->buffer) { }
+
+		void append(const std::string& msg) {
+			this->stream << msg << std::endl;
+		}
+
+	private:
+		__gnu_cxx::stdio_filebuf<char> buffer;
+		std::ostream                   stream;
+
+};
+
+}
+
+#endif  // CHANGE_UTILITY_H_