diff --git a/src/cconst.h b/src/cconst.h
new file mode 100644
index 0000000..8a00ea3
--- /dev/null
+++ b/src/cconst.h
@@ -0,0 +1,18 @@
+#ifndef _CCONST_H
+#define _CCONST_H
+/*
+  Extern C-Const API
+*/
+typedef struct {
+  char* name;
+  number_t  value;
+  char      *string;
+  index_t next; // index of next first character group  
+} cconst_t;
+
+extern cconst_t *cconst;
+
+void CConstInit(cconst_t *cconst);
+
+
+#endif