Initial commit, stdint, added comments

include/atom.h

@@ -0,0 +1,17 @@
+#ifndef ATOM_INCLUDED
+#define ATOM_INCLUDED
+
+#include <stdint.h>
+// Return the length of a given atom.
+extern int atom_len(const char *str);
+
+// Create or retrieve an atom corresponding to a string with a given length
+extern const char *atom_new   (const char *str, int64_t len);
+
+// Get the atom corresponding to a string
+extern const char *atom_string(const char *str);
+
+// Function to convert an integer to an atom (string representation of the number)
+extern const char *atom_int(int64_t n);
+
+#endif