Change av_len calls to av_tindex for clarity

av_tindex is a more clearly named synonym for av_len, available starting
in v5.18.  This changes the core uses to it, including modules in /ext,
which are not dual-lifed.

1 files changed, 1 insertions, 1 deletions

diff --git a/op.h b/op.h
index a93e759b2a..ed9609dddf 100644
--- a/op.h
+++ b/op.h
@@ -864,7 +864,7 @@ preprocessing token; the type of I<arg> depends on I<which>.
     STMT_START { \
 	if (PL_blockhooks) { \
 	    SSize_t i; \
-	    for (i = av_len(PL_blockhooks); i >= 0; i--) { \
+	    for (i = av_tindex(PL_blockhooks); i >= 0; i--) { \
 		SV *sv = AvARRAY(PL_blockhooks)[i]; \
 		BHK *hk; \
 		\