start converting numbers to rational numbers

src/number/number.h

@@ -2,13 +2,17 @@
 #define CLONESTRING_HNUMBER_H
 
 #include <stdint.h>
+#include <stdlib.h>
+    #include <stdbool.h>
 
 struct number {
-    uint8_t sign;
-    uint64_t numerator;
+    int64_t numerator;
     uint64_t denominator;
 };
 
 struct number translateNumber(char *code);
 
+void initNumber();
+void cleanupNumber();
+
 #endif // NUMBER_H