X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=cv.h;h=67d4a8ef6eef742e4b2068afa4a68fc269098b5c;hb=664bb207f6bd57f05b66c9abec00898987f7060b;hp=482a2578e8983c940e0705473f917adf301174df;hpb=20ce7b12268a3d32b5b246928de5084322e709cf;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/cv.h b/cv.h
index 482a257..67d4a8e 100644
--- a/cv.h
+++ b/cv.h
@@ -14,14 +14,14 @@ struct xpvcv {
     STRLEN	xpv_cur;	/* length of xp_pv as a C string */
     STRLEN	xpv_len;	/* allocated size */
     IV		xof_off;	/* integer value */
-    double	xnv_nv;		/* numeric value, if any */
+    NV		xnv_nv;		/* numeric value, if any */
     MAGIC*	xmg_magic;	/* magic for scalar array */
     HV*		xmg_stash;	/* class package */
 
     HV *	xcv_stash;
     OP *	xcv_start;
     OP *	xcv_root;
-    void      (*xcv_xsub) (CV* _CPERLproto);
+    void	(*xcv_xsub) (pTHXo_ CV*);
     ANY		xcv_xsubany;
     GV *	xcv_gv;
     GV *	xcv_filegv;
@@ -62,6 +62,7 @@ struct xpvcv {
 				   (esp. useful for special XSUBs) */
 #define CVf_METHOD	0x0040	/* CV is explicitly marked as a method */
 #define CVf_LOCKED	0x0080	/* CV locks itself or first arg on entry */
+#define CVf_LVALUE	0x0100  /* CV return value can be used as lvalue */
 
 #define CvCLONE(cv)		(CvFLAGS(cv) & CVf_CLONE)
 #define CvCLONE_on(cv)		(CvFLAGS(cv) |= CVf_CLONE)
@@ -97,6 +98,10 @@ struct xpvcv {
 #define CvLOCKED_on(cv)		(CvFLAGS(cv) |= CVf_LOCKED)
 #define CvLOCKED_off(cv)	(CvFLAGS(cv) &= ~CVf_LOCKED)
 
+#define CvLVALUE(cv)		(CvFLAGS(cv) & CVf_LVALUE)
+#define CvLVALUE_on(cv)		(CvFLAGS(cv) |= CVf_LVALUE)
+#define CvLVALUE_off(cv)	(CvFLAGS(cv) &= ~CVf_LVALUE)
+
 #define CvEVAL(cv)		(CvUNIQUE(cv) && !SvFAKE(cv))
 #define CvEVAL_on(cv)		(CvUNIQUE_on(cv),SvFAKE_off(cv))
 #define CvEVAL_off(cv)		CvUNIQUE_off(cv)