C: categorize files, update .gitignore

c-programming/io/pure_getline.h

@@ -0,0 +1,18 @@
+/*
+ * pure_getline.h
+ *
+ * Author: Intel A80486DX2-66
+ * License: Creative Commons Zero 1.0 Universal
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef _PURE_GETLINE_H
+#define _PURE_GETLINE_H
+
+bool pure_getline(char** output);
+
+#endif /* _PURE_GETLINE_H */