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-rw-r--r--intrpvar.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/intrpvar.h b/intrpvar.h
index be61875b88..db763adb36 100644
--- a/intrpvar.h
+++ b/intrpvar.h
@@ -531,7 +531,8 @@ PERLVAR(I, subline, I32) /* line this subroutine began on */
PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */
PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */
-PERLVAR(I, padix, I32) /* max used index in current "register" pad */
+PERLVAR(I, padix, I32) /* lowest unused index - 1
+ in current "register" pad */
PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */