/* pp.h
*
- * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
- * 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
/* SV* ref causes confusion with the member variable
changed SV* ref to SV* tmpRef */
-#define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); \
- if (SvREFCNT(tmpRef)>1) { \
- SvRV_set(rv, AMG_CALLun(rv,copy)); \
+#define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); SV* rv_copy; \
+ if (SvREFCNT(tmpRef)>1 && (rv_copy = AMG_CALLun(rv,copy))) { \
+ SvRV_set(rv, rv_copy); \
SvREFCNT_dec(tmpRef); \
} } STMT_END