From 7663aa67ebf92f85fdb62aee91f2b6af8c7d9cbb Mon Sep 17 00:00:00 2001
From: Nicholas Clark <nick@ccl4.org>
Date: Thu, 21 Feb 2013 20:54:48 +0100
Subject: [PATCH] In S_hsplit(), replace a for with a do/while, as the loop
 runs at least once.

Seems pointless to check the exit condition before any iterations, when we
know that it will always be false the first time.
---
 hv.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hv.c b/hv.c
index 9d619d0..af722f6 100644
--- a/hv.c
+++ b/hv.c
@@ -1100,7 +1100,7 @@ STATIC void
 S_hsplit(pTHX_ HV *hv, STRLEN const oldsize, STRLEN newsize)
 {
     dVAR;
-    STRLEN i;
+    STRLEN i = 0;
     char *a = (char*) HvARRAY(hv);
     HE **aep;
 
@@ -1129,7 +1129,7 @@ S_hsplit(pTHX_ HV *hv, STRLEN const oldsize, STRLEN newsize)
         return;
 
     aep = (HE**)a;
-    for (i=0; i<oldsize; i++) {
+    do {
 	HE **oentry = aep + i;
 	HE *entry = aep[i];
 
@@ -1147,7 +1147,7 @@ S_hsplit(pTHX_ HV *hv, STRLEN const oldsize, STRLEN newsize)
 	    }
 	    entry = *oentry;
 	} while (entry);
-    }
+    } while (i++ < oldsize);
 }
 
 void
-- 
2.7.4