-/* $RCSfile: sv.h,v $$Revision: 4.1 $$Date: 92/08/07 18:26:57 $
+/* sv.h
*
- * Copyright (c) 1991, Larry Wall
+ * Copyright (c) 1991-1999, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
- * $Log: sv.h,v $
- * Revision 4.1 92/08/07 18:26:57 lwall
- *
- * Revision 4.0.1.4 92/06/08 15:41:45 lwall
- * patch20: fixed confusion between a *var's real name and its effective name
- * patch20: removed implicit int declarations on functions
- *
- * Revision 4.0.1.3 91/11/05 18:41:47 lwall
- * patch11: random cleanup
- * patch11: solitary subroutine references no longer trigger typo warnings
- *
- * Revision 4.0.1.2 91/06/07 11:58:33 lwall
- * patch4: new copyright notice
- *
- * Revision 4.0.1.1 91/04/12 09:16:12 lwall
- * patch1: you may now use "die" and "caller" in a signal handler
- *
- * Revision 4.0 91/03/20 01:40:04 lwall
- * 4.0 baseline.
- *
*/
+#ifdef sv_flags
+#undef sv_flags /* Convex has this in <signal.h> for sigvec() */
+#endif
+
+/*
+=for apidoc AmU||svtype
+An enum of flags for Perl types. These are found in the file B<sv.h>
+in the C<svtype> enum. Test these flags with the C<SvTYPE> macro.
+
+=for apidoc AmU||SVt_PV
+Pointer type flag for scalars. See C<svtype>.
+
+=for apidoc AmU||SVt_IV
+Integer type flag for scalars. See C<svtype>.
+
+=for apidoc AmU||SVt_NV
+Double type flag for scalars. See C<svtype>.
+
+=for apidoc AmU||SVt_PVMG
+Type flag for blessed scalars. See C<svtype>.
+
+=for apidoc AmU||SVt_PVAV
+Type flag for arrays. See C<svtype>.
+
+=for apidoc AmU||SVt_PVHV
+Type flag for hashes. See C<svtype>.
+
+=for apidoc AmU||SVt_PVCV
+Type flag for code refs. See C<svtype>.
+
+=cut
+*/
+
typedef enum {
- SVt_NULL,
- SVt_REF,
- SVt_IV,
- SVt_NV,
- SVt_PV,
- SVt_PVIV,
- SVt_PVNV,
- SVt_PVMG,
- SVt_PVLV,
- SVt_PVAV,
- SVt_PVHV,
- SVt_PVCV,
- SVt_PVGV,
- SVt_PVBM,
- SVt_PVFM,
+ SVt_NULL, /* 0 */
+ SVt_IV, /* 1 */
+ SVt_NV, /* 2 */
+ SVt_RV, /* 3 */
+ SVt_PV, /* 4 */
+ SVt_PVIV, /* 5 */
+ SVt_PVNV, /* 6 */
+ SVt_PVMG, /* 7 */
+ SVt_PVBM, /* 8 */
+ SVt_PVLV, /* 9 */
+ SVt_PVAV, /* 10 */
+ SVt_PVHV, /* 11 */
+ SVt_PVCV, /* 12 */
+ SVt_PVGV, /* 13 */
+ SVt_PVFM, /* 14 */
+ SVt_PVIO /* 15 */
} svtype;
-/* Compensate for ANSI C misdesign... */
-#ifdef DEBUGGING
-#define SVTYPE svtype
-#else
-#define SVTYPE U8
-#endif
-
/* Using C's structural equivalence to help emulate C++ inheritance here... */
struct sv {
- ANY sv_any; /* pointer to something */
+ void* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
- SVTYPE sv_type; /* what sort of thing pointer points to */
- U8 sv_flags; /* extra flags, some depending on type */
- U8 sv_storage; /* storage class */
- U8 sv_private; /* extra value, depending on type */
+ U32 sv_flags; /* what we are */
};
struct gv {
- ANY sv_any; /* pointer to something */
+ XPVGV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
- SVTYPE sv_type; /* what sort of thing pointer points to */
- U8 sv_flags; /* extra flags, some depending on type */
- U8 sv_storage; /* storage class */
- U8 sv_private; /* extra value, depending on type */
+ U32 sv_flags; /* what we are */
};
struct cv {
- ANY sv_any; /* pointer to something */
+ XPVCV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
- SVTYPE sv_type; /* what sort of thing pointer points to */
- U8 sv_flags; /* extra flags, some depending on type */
- U8 sv_storage; /* storage class */
- U8 sv_private; /* extra value, depending on type */
+ U32 sv_flags; /* what we are */
};
struct av {
- ANY sv_any; /* pointer to something */
+ XPVAV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
- SVTYPE sv_type; /* what sort of thing pointer points to */
- U8 sv_flags; /* extra flags, some depending on type */
- U8 sv_storage; /* storage class */
- U8 sv_private; /* extra value, depending on type */
+ U32 sv_flags; /* what we are */
};
struct hv {
- ANY sv_any; /* pointer to something */
+ XPVHV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
- SVTYPE sv_type; /* what sort of thing pointer points to */
- U8 sv_flags; /* extra flags, some depending on type */
- U8 sv_storage; /* storage class */
- U8 sv_private; /* extra value, depending on type */
+ U32 sv_flags; /* what we are */
};
-#define SvANY(sv) (sv)->sv_any.any_ptr
-#define SvANYI32(sv) (sv)->sv_any.any_i32
-#define SvTYPE(sv) (sv)->sv_type
-#define SvREFCNT(sv) (sv)->sv_refcnt
+struct io {
+ XPVIO* sv_any; /* pointer to something */
+ U32 sv_refcnt; /* how many references to us */
+ U32 sv_flags; /* what we are */
+};
+
+/*
+=for apidoc Am|U32|SvREFCNT|SV* sv
+Returns the value of the object's reference count.
+
+=for apidoc Am|SV*|SvREFCNT_inc|SV* sv
+Increments the reference count of the given SV.
+
+=for apidoc Am|void|SvREFCNT_dec|SV* sv
+Decrements the reference count of the given SV.
+
+=for apidoc Am|svtype|SvTYPE|SV* sv
+Returns the type of the SV. See C<svtype>.
+
+=for apidoc Am|void|SvUPGRADE|SV* sv|svtype type
+Used to upgrade an SV to a more complex form. Uses C<sv_upgrade> to
+perform the upgrade if necessary. See C<svtype>.
+
+=cut
+*/
+
+#define SvANY(sv) (sv)->sv_any
#define SvFLAGS(sv) (sv)->sv_flags
-#define SvSTORAGE(sv) (sv)->sv_storage
-#define SvPRIVATE(sv) (sv)->sv_private
+#define SvREFCNT(sv) (sv)->sv_refcnt
+
+#ifdef USE_THREADS
+
+# ifdef EMULATE_ATOMIC_REFCOUNTS
+# define ATOMIC_INC(count) STMT_START { \
+ MUTEX_LOCK(&PL_svref_mutex); \
+ ++count; \
+ MUTEX_UNLOCK(&PL_svref_mutex); \
+ } STMT_END
+# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
+ MUTEX_LOCK(&PL_svref_mutex); \
+ res = (--count == 0); \
+ MUTEX_UNLOCK(&PL_svref_mutex); \
+ } STMT_END
+# else
+# define ATOMIC_INC(count) atomic_inc(&count)
+# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
+# endif /* EMULATE_ATOMIC_REFCOUNTS */
+#else
+# define ATOMIC_INC(count) (++count)
+# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
+#endif /* USE_THREADS */
+
+#ifdef __GNUC__
+# define SvREFCNT_inc(sv) \
+ ({ \
+ SV *nsv = (SV*)(sv); \
+ if (nsv) \
+ ATOMIC_INC(SvREFCNT(nsv)); \
+ nsv; \
+ })
+#else
+# if defined(CRIPPLED_CC) || defined(USE_THREADS)
+# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
+# else
+# define SvREFCNT_inc(sv) \
+ ((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
+# endif
+#endif
+
+#define SvREFCNT_dec(sv) sv_free((SV*)sv)
+
+#define SVTYPEMASK 0xff
+#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
#define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
-#define SVf_IOK 1 /* has valid integer value */
-#define SVf_NOK 2 /* has valid numeric value */
-#define SVf_POK 4 /* has valid pointer value */
-#define SVf_OOK 8 /* has valid offset value */
-#define SVf_MAGICAL 16 /* has special methods */
-#define SVf_SCREAM 32 /* eventually in sv_private? */
-#define SVf_TEMP 64 /* eventually in sv_private? */
-#define SVf_READONLY 128 /* may not be modified */
+#define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
+#define SVs_PADTMP 0x00000200 /* in use as tmp */
+#define SVs_PADMY 0x00000400 /* in use a "my" variable */
+#define SVs_TEMP 0x00000800 /* string is stealable? */
+#define SVs_OBJECT 0x00001000 /* is "blessed" */
+#define SVs_GMG 0x00002000 /* has magical get method */
+#define SVs_SMG 0x00004000 /* has magical set method */
+#define SVs_RMG 0x00008000 /* has random magical methods */
-#define SVp_TAINTED 128 /* is a security risk */
+#define SVf_IOK 0x00010000 /* has valid public integer value */
+#define SVf_NOK 0x00020000 /* has valid public numeric value */
+#define SVf_POK 0x00040000 /* has valid public pointer value */
+#define SVf_ROK 0x00080000 /* has a valid reference pointer */
-#define SVpfm_COMPILED 1
+#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
+#define SVf_OOK 0x00200000 /* has valid offset value */
+#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
+#define SVf_READONLY 0x00800000 /* may not be modified */
-#define SVpbm_TAIL 1
-#define SVpbm_CASEFOLD 2
-#define SVpbm_VALID 4
-#define SVpgv_MULTI 1
+#define SVp_IOK 0x01000000 /* has valid non-public integer value */
+#define SVp_NOK 0x02000000 /* has valid non-public numeric value */
+#define SVp_POK 0x04000000 /* has valid non-public pointer value */
+#define SVp_SCREAM 0x08000000 /* has been studied? */
+
+#define SVf_UTF8 0x20000000 /* SvPVX is UTF-8 encoded */
+
+#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE|SVf_UTF8)
+
+#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
+ SVp_IOK|SVp_NOK|SVp_POK)
+
+#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
+
+#define PRIVSHIFT 8
+
+/* Some private flags. */
+
+/* SVpad_OUR may be set on SVt_PV{NV,MG,GV} types */
+#define SVpad_OUR 0x80000000 /* pad name is "our" instead of "my" */
+
+#define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
+
+#define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */
+
+#define SVpbm_VALID 0x80000000
+#define SVpbm_TAIL 0x40000000
+
+#define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */
+
+#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
+#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
+
+#define SVprv_WEAKREF 0x80000000 /* Weak reference */
+
+struct xrv {
+ SV * xrv_rv; /* pointer to another SV */
+};
struct xpv {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
};
struct xpviv {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+};
+
+struct xpvuv {
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ UV xuv_uv; /* unsigned value or pv offset */
};
struct xpvnv {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
};
+/* These structure must match the beginning of struct xpvhv in hv.h. */
struct xpvmg {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
};
struct xpvlv {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
+
STRLEN xlv_targoff;
STRLEN xlv_targlen;
SV* xlv_targ;
};
struct xpvgv {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
+
GP* xgv_gp;
char* xgv_name;
STRLEN xgv_namelen;
HV* xgv_stash;
+ U8 xgv_flags;
};
struct xpvbm {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
+
I32 xbm_useful; /* is this constant pattern being useful? */
U16 xbm_previous; /* how many characters in string before rare? */
U8 xbm_rare; /* rarest character in string */
};
+/* This structure much match XPVCV in cv.h */
+
+typedef U16 cv_flags_t;
+
struct xpvfm {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xpv_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
- double xnv_nv; /* numeric value, if any */
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
+
HV * xcv_stash;
OP * xcv_start;
OP * xcv_root;
- I32 (*xcv_usersub)();
- I32 xcv_userindex;
- GV * xcv_filegv;
- long xcv_depth; /* >= 2 indicates recursive call */
+ void (*xcv_xsub)(pTHXo_ CV*);
+ ANY xcv_xsubany;
+ GV * xcv_gv;
+ char * xcv_file;
+ long xcv_depth; /* >= 2 indicates recursive call */
AV * xcv_padlist;
- bool xcv_deleted;
+ CV * xcv_outside;
+#ifdef USE_THREADS
+ perl_mutex *xcv_mutexp; /* protects xcv_owner */
+ struct perl_thread *xcv_owner; /* current owner thread */
+#endif /* USE_THREADS */
+ cv_flags_t xcv_flags;
+
I32 xfm_lines;
};
-/* XXX need to write custom routines for some of these */
-#define new_SV() (void*)malloc(sizeof(SV))
-#define del_SV(p) free((char*)p)
+struct xpvio {
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ IV xiv_iv; /* integer value or pv offset */
+ NV xnv_nv; /* numeric value, if any */
+ MAGIC* xmg_magic; /* linked list of magicalness */
+ HV* xmg_stash; /* class package */
-#define new_XIV() (void*)malloc(sizeof(XPVIV))
-#define del_XIV(p) free((char*)p)
+ PerlIO * xio_ifp; /* ifp and ofp are normally the same */
+ PerlIO * xio_ofp; /* but sockets need separate streams */
+ DIR * xio_dirp; /* for opendir, readdir, etc */
+ long xio_lines; /* $. */
+ long xio_page; /* $% */
+ long xio_page_len; /* $= */
+ long xio_lines_left; /* $- */
+ char * xio_top_name; /* $^ */
+ GV * xio_top_gv; /* $^ */
+ char * xio_fmt_name; /* $~ */
+ GV * xio_fmt_gv; /* $~ */
+ char * xio_bottom_name;/* $^B */
+ GV * xio_bottom_gv; /* $^B */
+ short xio_subprocess; /* -| or |- */
+ char xio_type;
+ char xio_flags;
+};
-#define new_XNV() (void*)malloc(sizeof(XPVNV))
-#define del_XNV(p) free((char*)p)
+#define IOf_ARGV 1 /* this fp iterates over ARGV */
+#define IOf_START 2 /* check for null ARGV and substitute '-' */
+#define IOf_FLUSH 4 /* this fp wants a flush after write op */
+#define IOf_DIDTOP 8 /* just did top of form */
+#define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */
+#define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */
+#define IOf_FAKE_DIRP 64 /* xio_dirp is fake (source filters kludge) */
-#define new_XPV() (void*)malloc(sizeof(XPV))
-#define del_XPV(p) free((char*)p)
+/* The following macros define implementation-independent predicates on SVs. */
-#define new_XPVIV() (void*)malloc(sizeof(XPVIV))
-#define del_XPVIV(p) free((char*)p)
+/*
+=for apidoc Am|bool|SvNIOK|SV* sv
+Returns a boolean indicating whether the SV contains a number, integer or
+double.
-#define new_XPVNV() (void*)malloc(sizeof(XPVNV))
-#define del_XPVNV(p) free((char*)p)
+=for apidoc Am|bool|SvNIOKp|SV* sv
+Returns a boolean indicating whether the SV contains a number, integer or
+double. Checks the B<private> setting. Use C<SvNIOK>.
-#define new_XPVMG() (void*)malloc(sizeof(XPVMG))
-#define del_XPVMG(p) free((char*)p)
+=for apidoc Am|void|SvNIOK_off|SV* sv
+Unsets the NV/IV status of an SV.
-#define new_XPVLV() (void*)malloc(sizeof(XPVLV))
-#define del_XPVLV(p) free((char*)p)
+=for apidoc Am|bool|SvOK|SV* sv
+Returns a boolean indicating whether the value is an SV.
-#define new_XPVAV() (void*)malloc(sizeof(XPVAV))
-#define del_XPVAV(p) free((char*)p)
+=for apidoc Am|bool|SvIOKp|SV* sv
+Returns a boolean indicating whether the SV contains an integer. Checks
+the B<private> setting. Use C<SvIOK>.
-#define new_XPVHV() (void*)malloc(sizeof(XPVHV))
-#define del_XPVHV(p) free((char*)p)
+=for apidoc Am|bool|SvNOKp|SV* sv
+Returns a boolean indicating whether the SV contains a double. Checks the
+B<private> setting. Use C<SvNOK>.
-#define new_XPVCV() (void*)malloc(sizeof(XPVCV))
-#define del_XPVCV(p) free((char*)p)
+=for apidoc Am|bool|SvPOKp|SV* sv
+Returns a boolean indicating whether the SV contains a character string.
+Checks the B<private> setting. Use C<SvPOK>.
-#define new_XPVGV() (void*)malloc(sizeof(XPVGV))
-#define del_XPVGV(p) free((char*)p)
+=for apidoc Am|bool|SvIOK|SV* sv
+Returns a boolean indicating whether the SV contains an integer.
-#define new_XPVBM() (void*)malloc(sizeof(XPVBM))
-#define del_XPVBM(p) free((char*)p)
+=for apidoc Am|void|SvIOK_on|SV* sv
+Tells an SV that it is an integer.
-#define new_XPVFM() (void*)malloc(sizeof(XPVFM))
-#define del_XPVFM(p) free((char*)p)
+=for apidoc Am|void|SvIOK_off|SV* sv
+Unsets the IV status of an SV.
-#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
+=for apidoc Am|void|SvIOK_only|SV* sv
+Tells an SV that it is an integer and disables all other OK bits.
+
+=for apidoc Am|bool|SvNOK|SV* sv
+Returns a boolean indicating whether the SV contains a double.
+
+=for apidoc Am|void|SvNOK_on|SV* sv
+Tells an SV that it is a double.
+
+=for apidoc Am|void|SvNOK_off|SV* sv
+Unsets the NV status of an SV.
-#define SvOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK))
-#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK), \
- SvOOK_off(sv))
+=for apidoc Am|void|SvNOK_only|SV* sv
+Tells an SV that it is a double and disables all other OK bits.
+
+=for apidoc Am|bool|SvPOK|SV* sv
+Returns a boolean indicating whether the SV contains a character
+string.
+
+=for apidoc Am|void|SvPOK_on|SV* sv
+Tells an SV that it is a string.
+
+=for apidoc Am|void|SvPOK_off|SV* sv
+Unsets the PV status of an SV.
+
+=for apidoc Am|void|SvPOK_only|SV* sv
+Tells an SV that it is a string and disables all other OK bits.
+
+=for apidoc Am|bool|SvOOK|SV* sv
+Returns a boolean indicating whether the SvIVX is a valid offset value for
+the SvPVX. This hack is used internally to speed up removal of characters
+from the beginning of a SvPV. When SvOOK is true, then the start of the
+allocated string buffer is really (SvPVX - SvIVX).
+
+=for apidoc Am|bool|SvROK|SV* sv
+Tests if the SV is an RV.
+
+=for apidoc Am|void|SvROK_on|SV* sv
+Tells an SV that it is an RV.
+
+=for apidoc Am|void|SvROK_off|SV* sv
+Unsets the RV status of an SV.
+
+=for apidoc Am|SV*|SvRV|SV* sv
+Dereferences an RV to return the SV.
+
+=for apidoc Am|IV|SvIVX|SV* sv
+Returns the integer which is stored in the SV, assuming SvIOK is
+true.
+
+=for apidoc Am|UV|SvUVX|SV* sv
+Returns the unsigned integer which is stored in the SV, assuming SvIOK is
+true.
+
+=for apidoc Am|NV|SvNVX|SV* sv
+Returns the double which is stored in the SV, assuming SvNOK is
+true.
+
+=for apidoc Am|char*|SvPVX|SV* sv
+Returns a pointer to the string in the SV. The SV must contain a
+string.
+
+=for apidoc Am|STRLEN|SvCUR|SV* sv
+Returns the length of the string which is in the SV. See C<SvLEN>.
+
+=for apidoc Am|STRLEN|SvLEN|SV* sv
+Returns the size of the string buffer in the SV. See C<SvCUR>.
+
+=for apidoc Am|char*|SvEND|SV* sv
+Returns a pointer to the last character in the string which is in the SV.
+See C<SvCUR>. Access the character as *(SvEND(sv)).
+
+=for apidoc Am|HV*|SvSTASH|SV* sv
+Returns the stash of the SV.
+
+=for apidoc Am|void|SvCUR_set|SV* sv|STRLEN len
+Set the length of the string which is in the SV. See C<SvCUR>.
+
+=cut
+*/
+
+#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
+#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
+#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
+ SVp_IOK|SVp_NOK|SVf_IVisUV))
+
+#define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
+#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
+ SVf_IVisUV|SVf_UTF8), \
+ SvOOK_off(sv))
+#define SvOK_off_exc_UV(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
+ SVf_UTF8), \
+ SvOOK_off(sv))
+
+#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
+#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
+#define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
+#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
+#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
+#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
+#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
-#define SvIOK_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVf_IOK)
-#define SvIOK_off(sv) (SvFLAGS(sv) &= ~SVf_IOK)
-#define SvIOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_IOK)
+#define SvIOK_on(sv) (SvOOK_off(sv), \
+ SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
+#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
+#define SvIOK_only(sv) (SvOK_off(sv), \
+ SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
+#define SvIOK_only_UV(sv) (SvOK_off_exc_UV(sv), \
+ SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
+
+#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
+ == (SVf_IOK|SVf_IVisUV))
+#define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
+ == SVf_IOK)
+
+#define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV)
+#define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV)
+#define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV)
#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
-#define SvNOK_on(sv) (SvFLAGS(sv) |= SVf_NOK)
-#define SvNOK_off(sv) (SvFLAGS(sv) &= ~SVf_NOK)
-#define SvNOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_NOK)
+#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
+#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
+#define SvNOK_only(sv) (SvOK_off(sv), \
+ SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
+
+#define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8)
+#define SvUTF8_on(sv) (SvFLAGS(sv) |= (SVf_UTF8))
+#define SvUTF8_off(sv) (SvFLAGS(sv) &= ~(SVf_UTF8))
#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
-#define SvPOK_on(sv) (SvFLAGS(sv) |= SVf_POK)
-#define SvPOK_off(sv) (SvFLAGS(sv) &= ~SVf_POK)
-#define SvPOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_POK)
+#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
+#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
+ SVf_IVisUV|SVf_UTF8), \
+ SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#define SvPOK_only_UTF8(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
+ SVf_IVisUV), \
+ SvFLAGS(sv) |= (SVf_POK|SVp_POK))
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
#define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
-#define SvOOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
-#define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
-#define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
-#define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
+#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
+#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
+#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
+
+#define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
+#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
+#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
+
+#define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
+#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
+#define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
+
+#define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
+#define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
+#define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
+
+#define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
+#define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
+#define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
+
+#define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
+#define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
+#define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
+
+#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
+#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
+#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
-#define SvMAGICAL(sv) (SvFLAGS(sv) & SVf_MAGICAL)
-#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= SVf_MAGICAL)
-#define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVf_MAGICAL)
+/*
+#define Gv_AMG(stash) \
+ (HV_AMAGICmb(stash) && \
+ ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
+*/
+#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
-#define SvSCREAM(sv) (SvFLAGS(sv) & SVf_SCREAM)
-#define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVf_SCREAM)
-#define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVf_SCREAM)
+#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
+ == (SVf_ROK|SVprv_WEAKREF))
+#define SvWEAKREF_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_WEAKREF))
+#define SvWEAKREF_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_WEAKREF))
-#define SvTEMP(sv) (SvFLAGS(sv) & SVf_TEMP)
-#define SvTEMP_on(sv) (SvFLAGS(sv) |= SVf_TEMP)
-#define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVf_TEMP)
+#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
-#define SvTAINTED(sv) (SvPRIVATE(sv) & SVp_TAINTED)
-#define SvTAINTED_on(sv) (SvPRIVATE(sv) |= SVp_TAINTED)
-#define SvTAINTED_off(sv) (SvPRIVATE(sv) &= ~SVp_TAINTED)
+#define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
-#define SvCOMPILED(sv) (SvPRIVATE(sv) & SVpfm_COMPILED)
-#define SvCOMPILED_on(sv) (SvPRIVATE(sv) |= SVpfm_COMPILED)
-#define SvCOMPILED_off(sv) (SvPRIVATE(sv) &= ~SVpfm_COMPILED)
+#define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
+#define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
+#define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
-#define SvTAIL(sv) (SvPRIVATE(sv) & SVpbm_TAIL)
-#define SvTAIL_on(sv) (SvPRIVATE(sv) |= SVpbm_TAIL)
-#define SvTAIL_off(sv) (SvPRIVATE(sv) &= ~SVpbm_TAIL)
+#define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
+#define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
-#define SvCASEFOLD(sv) (SvPRIVATE(sv) & SVpbm_CASEFOLD)
-#define SvCASEFOLD_on(sv) (SvPRIVATE(sv) |= SVpbm_CASEFOLD)
-#define SvCASEFOLD_off(sv) (SvPRIVATE(sv) &= ~SVpbm_CASEFOLD)
+#define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
+#define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
+#define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
-#define SvVALID(sv) (SvPRIVATE(sv) & SVpbm_VALID)
-#define SvVALID_on(sv) (SvPRIVATE(sv) |= SVpbm_VALID)
-#define SvVALID_off(sv) (SvPRIVATE(sv) &= ~SVpbm_VALID)
+#define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
+#define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
+#define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
-#define SvMULTI(sv) (SvPRIVATE(sv) & SVpgv_MULTI)
-#define SvMULTI_on(sv) (SvPRIVATE(sv) |= SVpgv_MULTI)
-#define SvMULTI_off(sv) (SvPRIVATE(sv) &= ~SVpgv_MULTI)
+#define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
+#define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
+#define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
-#define SvIV(sv) ((XPVIV*) SvANY(sv))->xiv_iv
-#define SvIVx(sv) SvIV(sv)
-#define SvNV(sv) ((XPVNV*)SvANY(sv))->xnv_nv
-#define SvNVx(sv) SvNV(sv)
-#define SvPV(sv) ((XPV*) SvANY(sv))->xpv_pv
-#define SvPVx(sv) SvPV(sv)
+#define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
+#define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
+#define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
+
+#define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
+#define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
+#define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
+
+#define SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL)
+#define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL)
+#define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL)
+
+#define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
+#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
+#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
+
+#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
+#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
+#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
+
+#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
+#define SvRVx(sv) SvRV(sv)
+
+#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
+#define SvIVXx(sv) SvIVX(sv)
+#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
+#define SvUVXx(sv) SvUVX(sv)
+#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
+#define SvNVXx(sv) SvNVX(sv)
+#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
+#define SvPVXx(sv) SvPVX(sv)
#define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
-#define SvCURx(sv) SvCUR(sv)
#define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
#define SvLENx(sv) SvLEN(sv)
#define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
-#define SvENDx(sv) ((Sv = sv), SvEND(Sv))
+#define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv))
#define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
#define SvIV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
- (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
+ (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
#define SvNV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
- (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
+ (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
#define SvPV_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_pv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
#define SvCUR_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
#define SvLEN_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_len = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
#define SvEND_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val - SvPV(sv)); } while (0)
-
-#define SvCUROK(sv) (SvPOK(sv) ? SvCUR(sv) : 0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
#define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
#define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
-#ifdef TAINT
-#define SvTUP(sv) (tainted |= (SvPRIVATE(sv) & SVp_TAINTED))
-#define SvTUPc(sv) (tainted |= (SvPRIVATE(sv) & SVp_TAINTED)),
-#define SvTDOWN(sv) (SvPRIVATE(sv) |= tainted ? SVp_TAINTED : 0)
-#define SvTDOWNc(sv) (SvPRIVATE(sv) |= tainted ? SVp_TAINTED : 0),
-#else
-#define SvTUP(sv)
-#define SvTUPc(sv)
-#define SvTDOWN(sv)
-#define SvTDOWNc(sv)
-#endif
-
-#ifdef CRIPPLED_CC
-
-double SvIVn();
-double SvNVn();
-char *SvPVn();
-I32 SvTRUE();
-
-#define SvIVnx(sv) SvIVn(sv)
-#define SvNVnx(sv) SvNVn(sv)
-#define SvPVnx(sv) SvPVn(sv)
-#define SvTRUEx(sv) SvTRUE(sv)
-
-#else /* !CRIPPLED_CC */
-
-#define SvIVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \
- SvIOK(sv) ? SvIV(sv) : sv_2iv(sv))
-
-#define SvNVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \
- SvNOK(sv) ? SvNV(sv) : sv_2nv(sv))
-
-#define SvPVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \
- SvPOK(sv) ? SvPV(sv) : sv_2pv(sv))
-
-#define SvTRUE(sv) ((SvMAGICAL(sv) && mg_get(sv)), \
- SvPOK(sv) \
- ? ((Xpv = (XPV*)SvANY(sv)) && \
- (*Xpv->xpv_pv > '0' || \
- Xpv->xpv_cur > 1 || \
- (Xpv->xpv_cur && *Xpv->xpv_pv != '0')) \
+#define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
+#define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
+#define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
+#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
+#define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
+#define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
+#define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
+#define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
+#define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
+#define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
+#define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
+#define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
+#define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
+#define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
+#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
+#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
+
+/*
+=for apidoc Am|bool|SvTAINTED|SV* sv
+Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if
+not.
+
+=for apidoc Am|void|SvTAINTED_on|SV* sv
+Marks an SV as tainted.
+
+=for apidoc Am|void|SvTAINTED_off|SV* sv
+Untaints an SV. Be I<very> careful with this routine, as it short-circuits
+some of Perl's fundamental security features. XS module authors should not
+use this function unless they fully understand all the implications of
+unconditionally untainting the value. Untainting should be done in the
+standard perl fashion, via a carefully crafted regexp, rather than directly
+untainting variables.
+
+=for apidoc Am|void|SvTAINT|SV* sv
+Taints an SV if tainting is enabled
+
+=cut
+*/
+
+#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
+#define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END
+#define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END
+
+#define SvTAINT(sv) \
+ STMT_START { \
+ if (PL_tainting) { \
+ dTHR; \
+ if (PL_tainted) \
+ SvTAINTED_on(sv); \
+ } \
+ } STMT_END
+
+/*
+=for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len
+Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
+force if you are going to update the SvPVX directly.
+
+=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
+Returns a pointer to the string in the SV, or a stringified form of the SV
+if the SV does not contain a string. Handles 'get' magic.
+
+=for apidoc Am|char*|SvPV_nolen|SV* sv
+Returns a pointer to the string in the SV, or a stringified form of the SV
+if the SV does not contain a string. Handles 'get' magic.
+
+=for apidoc Am|IV|SvIV|SV* sv
+Coerces the given SV to an integer and returns it.
+
+=for apidoc Am|NV|SvNV|SV* sv
+Coerce the given SV to a double and return it.
+
+=for apidoc Am|UV|SvUV|SV* sv
+Coerces the given SV to an unsigned integer and returns it.
+
+=for apidoc Am|bool|SvTRUE|SV* sv
+Returns a boolean indicating whether Perl would evaluate the SV as true or
+false, defined or undefined. Does not handle 'get' magic.
+
+=cut
+*/
+
+#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
+#define SvPV(sv, lp) sv_pvn(sv, &lp)
+#define SvPV_nolen(sv) sv_pv(sv)
+
+#define SvPVutf8_force(sv, lp) sv_pvutf8n_force(sv, &lp)
+#define SvPVutf8(sv, lp) sv_pvutf8n(sv, &lp)
+#define SvPVutf8_nolen(sv) sv_pvutf8(sv)
+
+#define SvPVbyte_force(sv, lp) sv_pvbyte_force(sv, &lp)
+#define SvPVbyte(sv, lp) sv_pvbyten(sv, &lp)
+#define SvPVbyte_nolen(sv) sv_pvbyte(sv)
+
+#define SvPVx(sv, lp) sv_pvn(sv, &lp)
+#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
+#define SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
+#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
+#define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
+#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
+
+#define SvIVx(sv) sv_iv(sv)
+#define SvUVx(sv) sv_uv(sv)
+#define SvNVx(sv) sv_nv(sv)
+
+#define SvTRUEx(sv) sv_true(sv)
+
+#define SvIV(sv) SvIVx(sv)
+#define SvNV(sv) SvNVx(sv)
+#define SvUV(sv) SvUVx(sv)
+#define SvTRUE(sv) SvTRUEx(sv)
+
+#ifndef CRIPPLED_CC
+/* redefine some things to more efficient inlined versions */
+
+/* Let us hope that bitmaps for UV and IV are the same */
+#undef SvIV
+#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
+
+#undef SvUV
+#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
+
+#undef SvNV
+#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
+
+#undef SvPV
+#define SvPV(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+
+
+#undef SvPV_force
+#define SvPV_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+
+#undef SvPV_nolen
+#define SvPV_nolen(sv) \
+ ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
+ ? SvPVX(sv) : sv_2pv_nolen(sv))
+
+#undef SvPVutf8
+#define SvPVutf8(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
+
+#undef SvPVutf8_force
+#define SvPVutf8_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
+
+#undef SvPVutf8_nolen
+#define SvPVutf8_nolen(sv) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
+ ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
+
+#undef SvPVutf8
+#define SvPVutf8(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
+
+#undef SvPVutf8_force
+#define SvPVutf8_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
+
+#undef SvPVutf8_nolen
+#define SvPVutf8_nolen(sv) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
+ ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
+
+#undef SvPVbyte
+#define SvPVbyte(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp))
+
+#undef SvPVbyte_force
+#define SvPVbyte_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyte_force(sv, &lp))
+
+#undef SvPVbyte_nolen
+#define SvPVbyte_nolen(sv) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\
+ ? SvPVX(sv) : sv_2pvbyte_nolen(sv))
+
+
+#ifdef __GNUC__
+# undef SvIVx
+# undef SvUVx
+# undef SvNVx
+# undef SvPVx
+# undef SvPVutf8x
+# undef SvPVbytex
+# undef SvTRUE
+# undef SvTRUEx
+# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
+# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
+# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
+# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
+# define SvPVutf8x(sv, lp) ({SV *nsv = (sv); SvPVutf8(nsv, lp); })
+# define SvPVbytex(sv, lp) ({SV *nsv = (sv); SvPVbyte(nsv, lp); })
+# define SvTRUE(sv) ( \
+ !sv \
+ ? 0 \
+ : SvPOK(sv) \
+ ? (({XPV *nxpv = (XPV*)SvANY(sv); \
+ nxpv && \
+ (nxpv->xpv_cur > 1 || \
+ (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \
? 1 \
: 0) \
: \
SvIOK(sv) \
- ? SvIV(sv) != 0 \
+ ? SvIVX(sv) != 0 \
: SvNOK(sv) \
- ? SvNV(sv) != 0.0 \
- : 0 )
-
-#define SvIVnx(sv) ((Sv = sv), SvIVn(Sv))
-#define SvNVnx(sv) ((Sv = sv), SvNVn(Sv))
-#define SvPVnx(sv) ((Sv = sv), SvPVn(Sv))
-#define SvTRUEx(sv) ((Sv = sv), SvTRUE(Sv))
-
-#endif /* CRIPPLED_CC */
-
-/* the following macro updates any magic values this sv is associated with */
-
-#define SvGETMAGIC(x) \
- SvTUP(x); \
- if (SvMAGICAL(x)) mg_get(x)
-
-#define SvSETMAGIC(x) \
- SvTDOWN(x); \
- if (SvMAGICAL(x)) \
- mg_set(x)
-
-#define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
+ ? SvNVX(sv) != 0.0 \
+ : sv_2bool(sv) )
+# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
+#else /* __GNUC__ */
+#ifndef USE_THREADS
+/* These inlined macros use globals, which will require a thread
+ * declaration in user code, so we avoid them under threads */
+
+# undef SvIVx
+# undef SvUVx
+# undef SvNVx
+# undef SvPVx
+# undef SvPVutf8x
+# undef SvPVbytex
+# undef SvTRUE
+# undef SvTRUEx
+# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
+# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
+# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
+# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
+# define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
+# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
+# define SvTRUE(sv) ( \
+ !sv \
+ ? 0 \
+ : SvPOK(sv) \
+ ? ((PL_Xpv = (XPV*)SvANY(sv)) && \
+ (PL_Xpv->xpv_cur > 1 || \
+ (PL_Xpv->xpv_cur && *PL_Xpv->xpv_pv != '0')) \
+ ? 1 \
+ : 0) \
+ : \
+ SvIOK(sv) \
+ ? SvIVX(sv) != 0 \
+ : SvNOK(sv) \
+ ? SvNVX(sv) != 0.0 \
+ : sv_2bool(sv) )
+# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
+#endif /* !USE_THREADS */
+#endif /* !__GNU__ */
+#endif /* !CRIPPLED_CC */
+
+/*
+=for apidoc Am|SV*|newRV_inc|SV* sv
+
+Creates an RV wrapper for an SV. The reference count for the original SV is
+incremented.
+
+=cut
+*/
+
+#define newRV_inc(sv) newRV(sv)
+
+/* the following macros update any magic values this sv is associated with */
+
+/*
+=for apidoc Am|void|SvGETMAGIC|SV* sv
+Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its
+argument more than once.
+
+=for apidoc Am|void|SvSETMAGIC|SV* sv
+Invokes C<mg_set> on an SV if it has 'set' magic. This macro evaluates its
+argument more than once.
+
+=for apidoc Am|void|SvSetSV|SV* dsb|SV* ssv
+Calls C<sv_setsv> if dsv is not the same as ssv. May evaluate arguments
+more than once.
+
+=for apidoc Am|void|SvSetSV_nosteal|SV* dsv|SV* ssv
+Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
+ssv. May evaluate arguments more than once.
+
+=for apidoc Am|void|SvGROW|SV* sv|STRLEN len
+Expands the character buffer in the SV so that it has room for the
+indicated number of bytes (remember to reserve space for an extra trailing
+NUL character). Calls C<sv_grow> to perform the expansion if necessary.
+Returns a pointer to the character buffer.
+
+=cut
+*/
+
+#define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END
+#define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END
+
+#define SvSetSV_and(dst,src,finally) \
+ STMT_START { \
+ if ((dst) != (src)) { \
+ sv_setsv(dst, src); \
+ finally; \
+ } \
+ } STMT_END
+#define SvSetSV_nosteal_and(dst,src,finally) \
+ STMT_START { \
+ if ((dst) != (src)) { \
+ U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
+ SvTEMP_off(src); \
+ sv_setsv(dst, src); \
+ SvFLAGS(src) |= tMpF; \
+ finally; \
+ } \
+ } STMT_END
+
+#define SvSetSV(dst,src) \
+ SvSetSV_and(dst,src,/*nothing*/;)
+#define SvSetSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,/*nothing*/;)
+
+#define SvSetMagicSV(dst,src) \
+ SvSetSV_and(dst,src,SvSETMAGIC(dst))
+#define SvSetMagicSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
+#ifdef DEBUGGING
#define SvPEEK(sv) sv_peek(sv)
+#else
+#define SvPEEK(sv) ""
+#endif
-#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
+#define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no)
-#define GROWSTR(pp,lp,len) if (*(lp) < (len)) pv_grow(pp, lp, (len) * 3 / 2)
+#define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
-#ifndef DOSISH
-# define SvGROW(sv,len) if (SvLEN(sv) < (len)) sv_grow(sv,len)
-# define Sv_Grow sv_grow
-#else
- /* extra parentheses intentionally NOT placed around "len"! */
-# define SvGROW(sv,len) if (SvLEN(sv) < (unsigned long)len) \
- sv_grow(sv,(unsigned long)len)
-# define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))
-#endif /* DOSISH */
+#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
+#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
+#define Sv_Grow sv_grow