From 30e5c352c9c1099120007e8b6e9318a33d99b3bb Mon Sep 17 00:00:00 2001
From: Nicholas Clark <nick@ccl4.org>
Date: Thu, 25 Aug 2005 13:46:31 +0000
Subject: [PATCH] Promote the warning about reference miscount in sv_replace to
 a panic. TODO - document the panics

p4raw-id: //depot/perl@25330
---
 sv.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sv.c b/sv.c
index 88c864b..5089825 100644
--- a/sv.c
+++ b/sv.c
@@ -5408,8 +5408,10 @@ Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv)
 {
     const U32 refcnt = SvREFCNT(sv);
     SV_CHECK_THINKFIRST_COW_DROP(sv);
-    if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL))
-	Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()");
+    if (SvREFCNT(nsv) != 1) {
+	Perl_croak(aTHX_ "panic: feference miscount on nsv in sv_replace() (%"
+		   UVuf " != 1)", (UV) SvREFCNT(nsv));
+    }
     if (SvMAGICAL(sv)) {
 	if (SvMAGICAL(nsv))
 	    mg_free(nsv);
-- 
1.8.3.1