diff --git a/include/int.h b/include/int.h
new file mode 100644
index 0000000..79a9438
--- /dev/null
+++ b/include/int.h
@@ -0,0 +1,7 @@
+#ifndef ASTER_INT_H
+#define ASTER_INT_H
+
+unsigned long parse_u32(const char *s, int *ok);
+long parse_i32(const char *s, int *ok);
+
+#endif