From 8e9bbdb923f8df09e5409a6d90b34d9a7bf447c4 Mon Sep 17 00:00:00 2001
From: Rafael Garcia-Suarez <rgarciasuarez@gmail.com>
Date: Fri, 26 Dec 2003 10:18:24 +0000
Subject: [PATCH] Refactor the code that checks whether a range is numeric or
 string-magical.

p4raw-id: //depot/perl@21960
---
 pp_ctl.c | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/pp_ctl.c b/pp_ctl.c
index 045edd4..ab4ab84 100644
--- a/pp_ctl.c
+++ b/pp_ctl.c
@@ -1031,6 +1031,16 @@ PP(pp_flip)
     }
 }
 
+/* This code tries to decide if "$left .. $right" should use the
+   magical string increment, or if the range is numeric (we make
+   an exception for .."0" [#18165]). AMS 20021031. */
+
+#define RANGE_IS_NUMERIC(left,right) ( \
+	SvNIOKp(left)  || !SvPOKp(left)  || \
+	SvNIOKp(right) || !SvPOKp(right) || \
+	(looks_like_number(left) && *SvPVX(left) != '0' && \
+	 looks_like_number(right)))
+
 PP(pp_flop)
 {
     dSP;
@@ -1046,15 +1056,7 @@ PP(pp_flop)
 	if (SvGMAGICAL(right))
 	    mg_get(right);
 
-	/* This code tries to decide if "$left .. $right" should use the
-	   magical string increment, or if the range is numeric (we make
-	   an exception for .."0" [#18165]). AMS 20021031. */
-
-	if (SvNIOKp(left) || !SvPOKp(left) ||
-	    SvNIOKp(right) || !SvPOKp(right) ||
-	    (looks_like_number(left) && *SvPVX(left) != '0' &&
-	     looks_like_number(right)))
-	{
+	if (RANGE_IS_NUMERIC(left,right)) {
 	    if (SvNV(left) < IV_MIN || SvNV(right) > IV_MAX)
 		DIE(aTHX_ "Range iterator outside integer range");
 	    i = SvIV(left);
@@ -1769,12 +1771,7 @@ PP(pp_enteriter)
 	cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs);
 	if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) {
 	    dPOPss;
-	    /* See comment in pp_flop() */
-	    if (SvNIOKp(sv) || !SvPOKp(sv) ||
-		SvNIOKp(cx->blk_loop.iterary) || !SvPOKp(cx->blk_loop.iterary) ||
-		(looks_like_number(sv) && *SvPVX(sv) != '0' &&
-		 looks_like_number((SV*)cx->blk_loop.iterary)))
-	    {
+	    if (RANGE_IS_NUMERIC(sv,(SV*)cx->blk_loop.iterary)) {
 		 if (SvNV(sv) < IV_MIN ||
 		     SvNV((SV*)cx->blk_loop.iterary) >= IV_MAX)
 		     DIE(aTHX_ "Range iterator outside integer range");
-- 
2.7.4