From: Nicholas Clark <nick@ccl4.org>
Date: Tue, 7 Jun 2005 18:32:44 +0000 (+0000)
Subject: Add MgPV_const
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=fa28a6c6f7e8f9e40914ce7c0e4bd1cf2100f380;p=p5sagit%2Fp5-mst-13.2.git

Add MgPV_const

p4raw-id: //depot/perl@24738
---

diff --git a/mg.h b/mg.h
index 76903ca..f07c248 100644
--- a/mg.h
+++ b/mg.h
@@ -48,6 +48,9 @@ struct magic {
 #define MgPV(mg,lp)		((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ?   \
 				 SvPV((SV*)((mg)->mg_ptr),lp) :		\
 				 (mg)->mg_ptr)
+#define MgPV_const(mg,lp)	((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ?   \
+				 SvPV_const((SV*)((mg)->mg_ptr),lp) :	\
+				 (const char*)(mg)->mg_ptr)
 
 #define SvTIED_mg(sv,how) \
     (SvRMAGICAL(sv) ? mg_find((sv),(how)) : Null(MAGIC*))