X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=sv.h;h=15d90a9e0680c7b6295ea73801ced65e2ace2523;hb=646ca15d5cf720a2af3a258d7092a967f3a80550;hp=a8dcc5bffb6fe7edb08263bbd7c71a518389890f;hpb=311a25d9bdebead7c924f8195b0287fe2a60a568;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/sv.h b/sv.h
index a8dcc5b..15d90a9 100644
--- a/sv.h
+++ b/sv.h
@@ -225,7 +225,10 @@ perform the upgrade if necessary.  See C<svtype>.
 #define SVf_ROK		0x00080000	/* has a valid reference pointer */
 
 #define SVf_FAKE	0x00100000	/* glob or lexical is just a copy */
-#define SVf_OOK		0x00200000	/* has valid offset value */
+#define SVf_OOK		0x00200000	/* has valid offset value
+					   For a PVHV this means that a
+					   hv_aux struct is present after the
+					   main array  */
 #define SVf_BREAK	0x00400000	/* refcnt is artificially low - used
 					 * by SV's in final arena  cleanup */
 #define SVf_READONLY	0x00800000	/* may not be modified */