X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=gv.h;h=66dedb70f53c88a2e2b0c024b39711f35b61761f;hb=021db424163d574093ff658e9606a6f31942189d;hp=849413767218ddf0e7ca0401366264cc27b8aeda;hpb=9bd878171021311bd025e403714388c68ff5d9e2;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/gv.h b/gv.h
index 8494137..66dedb7 100644
--- a/gv.h
+++ b/gv.h
@@ -88,7 +88,7 @@ Return the SV from the GV.
 #endif
 
 #define GvREFCNT(gv)	(GvGP(gv)->gp_refcnt)
-#define GvIO(gv)	((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : 0)
+#define GvIO(gv)	((gv) && SvTYPE((SV*)gv) == SVt_PVGV && GvGP(gv) ? GvIOp(gv) : NULL)
 #define GvIOp(gv)	(GvGP(gv)->gp_io)
 #define GvIOn(gv)	(GvIO(gv) ? GvIOp(gv) : GvIOp(gv_IOadd(gv)))