update size after Renew

RT #130841

In general code, change this idiom:

    PL_foo_max += size;
    Renew(PL_foo, PL_foo_max, foo_t);

to
    Renew(PL_foo, PL_foo_max + size, foo_t);
    PL_foo_max += size;

so that if Renew dies, PL_foo_max won't be left hanging.

1 files changed, 1 insertions, 1 deletions

diff --git a/pp_sort.c b/pp_sort.c
index 21e4574c1f..a54768a022 100644
--- a/pp_sort.c
+++ b/pp_sort.c
@@ -1831,8 +1831,8 @@ S_sortcv_stacked(pTHX_ SV *const a, SV *const b)
 	    AvARRAY(av) = ary;
 	}
 	if (AvMAX(av) < 1) {
-	    AvMAX(av) = 1;
 	    Renew(ary,2,SV*);
+	    AvMAX(av) = 1;
 	    AvARRAY(av) = ary;
 	    AvALLOC(av) = ary;
 	}