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Text File | 2000-03-15 | 33.7 KB | 1,035 lines |
- /* sv.h
- *
- * Copyright (c) 1991-2000, 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.
- *
- */
-
- #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, /* 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;
-
- /* Using C's structural equivalence to help emulate C++ inheritance here... */
-
- struct sv {
- void* sv_any; /* pointer to something */
- U32 sv_refcnt; /* how many references to us */
- U32 sv_flags; /* what we are */
- };
-
- struct gv {
- XPVGV* sv_any; /* pointer to something */
- U32 sv_refcnt; /* how many references to us */
- U32 sv_flags; /* what we are */
- };
-
- struct cv {
- XPVCV* sv_any; /* pointer to something */
- U32 sv_refcnt; /* how many references to us */
- U32 sv_flags; /* what we are */
- };
-
- struct av {
- XPVAV* sv_any; /* pointer to something */
- U32 sv_refcnt; /* how many references to us */
- U32 sv_flags; /* what we are */
- };
-
- struct hv {
- XPVHV* sv_any; /* pointer to something */
- U32 sv_refcnt; /* how many references to us */
- U32 sv_flags; /* what we are */
- };
-
- 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 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 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 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 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 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 */
- };
-
- 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 */
- 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 */
- 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 */
- 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 */
- 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;
- char xlv_type;
- };
-
- 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 */
- 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 */
- 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 */
- 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;
- void (*xcv_xsub)(pTHXo_ CV*);
- ANY xcv_xsubany;
- GV * xcv_gv;
- char * xcv_file;
- long xcv_depth; /* >= 2 indicates recursive call */
- AV * xcv_padlist;
- 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;
- };
-
- 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 */
-
- 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 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) */
-
- /* The following macros define implementation-independent predicates on SVs. */
-
- /*
- =for apidoc Am|bool|SvNIOK|SV* sv
- Returns a boolean indicating whether the SV contains a number, integer or
- double.
-
- =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>.
-
- =for apidoc Am|void|SvNIOK_off|SV* sv
- Unsets the NV/IV status of an SV.
-
- =for apidoc Am|bool|SvOK|SV* sv
- Returns a boolean indicating whether the value is an SV.
-
- =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>.
-
- =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>.
-
- =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>.
-
- =for apidoc Am|bool|SvIOK|SV* sv
- Returns a boolean indicating whether the SV contains an integer.
-
- =for apidoc Am|void|SvIOK_on|SV* sv
- Tells an SV that it is an integer.
-
- =for apidoc Am|void|SvIOK_off|SV* sv
- Unsets the IV status of an SV.
-
- =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.
-
- =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) ((void)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) ((void)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) ((void)SvOK_off(sv), \
- SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
- #define SvIOK_only_UV(sv) ((void)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|SVp_NOK))
- #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
- #define SvNOK_only(sv) ((void)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|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) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
- #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
-
- #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 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 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 SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
-
- #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
-
- #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 SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
- #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
-
- #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
- #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
- #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
-
- #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
- #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
- #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
-
- #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
- #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
- #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
-
- #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 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) ((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) \
- STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
- (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
- #define SvNV_set(sv, val) \
- STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
- (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
- #define SvPV_set(sv, val) \
- STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
- #define SvCUR_set(sv, val) \
- STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
- #define SvLEN_set(sv, val) \
- STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
- #define SvEND_set(sv, val) \
- 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 BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
-
- #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
-
- #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
- #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
- #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
- #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
-
- #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) \
- ? SvIVX(sv) != 0 \
- : SvNOK(sv) \
- ? 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 SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no)
-
- #define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
-
- #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
-