op_reg_common.h: Refactor variable for safety

[perl5.git] / op_reg_common.h

diff --git a/op_reg_common.h b/op_reg_common.h
index b0fd273..de100dc 100644 (file)
--- a/op_reg_common.h
+++ b/op_reg_common.h
@@ -24,4 +24,6 @@
 #define RXf_PMf_LOCALE         (1 << 5)
 #define PMf_LOCALE             (1 << 5)
 
-#define _RXf_PMf_SHIFT 5    /* Begins with '_' so won't be exported by B */
+/* Next available bit after the above.  Name begins with '_' so won't be
+ * exported by B */
+#define _RXf_PMf_SHIFT_NEXT 6