pad.h: Let PADNAME_PV return null

diff --git a/pad.h b/pad.h
index 4a2164b..a966e81 100644 (file)
--- a/pad.h
+++ b/pad.h
@@ -207,7 +207,8 @@ The C array of pad entries.
 The index of the last pad entry.
 
 =for apidoc Amx|char *|PADNAME_PV|PADNAME pn   
-The name stored in the pad name struct.
+The name stored in the pad name struct.  This returns NULL for a target or
+GV slot.
 
 =for apidoc Amx|STRLEN|PADNAME_LEN|PADNAME pn  
 The length of the name.
@@ -286,7 +287,7 @@ Restore the old pad saved into the local variable opad by PAD_SAVE_LOCAL()
 #define PAD_ARRAY(pad)         AvARRAY(pad)
 #define PAD_MAX(pad)           AvFILLp(pad)
 
-#define PADNAME_PV(pn)         SvPV_nolen(pn)
+#define PADNAME_PV(pn)         (SvPOKp(pn) ? SvPVX(pn) : NULL)
 #define PADNAME_LEN(pn)                SvCUR(pn)
 #define PADNAME_UTF8(pn)       !!SvUTF8(pn)
 #define PADNAME_SV(pn)         pn