[ID 20000803.006] 'use lib ...' doesn't behave as documented
[p5sagit/p5-mst-13.2.git] / sv.h
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a0d0e21e 1/* sv.h
79072805 2 *
3818b22b 3 * Copyright (c) 1991-2000, Larry Wall
79072805 4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
79072805 8 */
9
a0d0e21e 10#ifdef sv_flags
11#undef sv_flags /* Convex has this in <signal.h> for sigvec() */
12#endif
13
954c1994 14/*
15=for apidoc AmU||svtype
16An enum of flags for Perl types. These are found in the file B<sv.h>
17in the C<svtype> enum. Test these flags with the C<SvTYPE> macro.
18
19=for apidoc AmU||SVt_PV
20Pointer type flag for scalars. See C<svtype>.
21
22=for apidoc AmU||SVt_IV
23Integer type flag for scalars. See C<svtype>.
24
25=for apidoc AmU||SVt_NV
26Double type flag for scalars. See C<svtype>.
27
28=for apidoc AmU||SVt_PVMG
29Type flag for blessed scalars. See C<svtype>.
30
31=for apidoc AmU||SVt_PVAV
32Type flag for arrays. See C<svtype>.
33
34=for apidoc AmU||SVt_PVHV
35Type flag for hashes. See C<svtype>.
36
37=for apidoc AmU||SVt_PVCV
38Type flag for code refs. See C<svtype>.
39
40=cut
41*/
42
79072805 43typedef enum {
a0d0e21e 44 SVt_NULL, /* 0 */
45 SVt_IV, /* 1 */
46 SVt_NV, /* 2 */
47 SVt_RV, /* 3 */
48 SVt_PV, /* 4 */
49 SVt_PVIV, /* 5 */
50 SVt_PVNV, /* 6 */
51 SVt_PVMG, /* 7 */
52 SVt_PVBM, /* 8 */
53 SVt_PVLV, /* 9 */
54 SVt_PVAV, /* 10 */
55 SVt_PVHV, /* 11 */
56 SVt_PVCV, /* 12 */
57 SVt_PVGV, /* 13 */
58 SVt_PVFM, /* 14 */
59 SVt_PVIO /* 15 */
79072805 60} svtype;
61
79072805 62/* Using C's structural equivalence to help emulate C++ inheritance here... */
63
64struct sv {
463ee0b2 65 void* sv_any; /* pointer to something */
79072805 66 U32 sv_refcnt; /* how many references to us */
8990e307 67 U32 sv_flags; /* what we are */
79072805 68};
69
70struct gv {
463ee0b2 71 XPVGV* sv_any; /* pointer to something */
79072805 72 U32 sv_refcnt; /* how many references to us */
8990e307 73 U32 sv_flags; /* what we are */
79072805 74};
75
76struct cv {
232e078e 77 XPVCV* sv_any; /* pointer to something */
79072805 78 U32 sv_refcnt; /* how many references to us */
8990e307 79 U32 sv_flags; /* what we are */
79072805 80};
81
82struct av {
463ee0b2 83 XPVAV* sv_any; /* pointer to something */
79072805 84 U32 sv_refcnt; /* how many references to us */
8990e307 85 U32 sv_flags; /* what we are */
79072805 86};
87
88struct hv {
463ee0b2 89 XPVHV* sv_any; /* pointer to something */
79072805 90 U32 sv_refcnt; /* how many references to us */
8990e307 91 U32 sv_flags; /* what we are */
92};
93
94struct io {
95 XPVIO* sv_any; /* pointer to something */
96 U32 sv_refcnt; /* how many references to us */
97 U32 sv_flags; /* what we are */
79072805 98};
99
954c1994 100/*
101=for apidoc Am|U32|SvREFCNT|SV* sv
102Returns the value of the object's reference count.
103
104=for apidoc Am|SV*|SvREFCNT_inc|SV* sv
105Increments the reference count of the given SV.
106
107=for apidoc Am|void|SvREFCNT_dec|SV* sv
108Decrements the reference count of the given SV.
109
110=for apidoc Am|svtype|SvTYPE|SV* sv
111Returns the type of the SV. See C<svtype>.
112
113=for apidoc Am|void|SvUPGRADE|SV* sv|svtype type
114Used to upgrade an SV to a more complex form. Uses C<sv_upgrade> to
115perform the upgrade if necessary. See C<svtype>.
116
117=cut
118*/
119
463ee0b2 120#define SvANY(sv) (sv)->sv_any
79072805 121#define SvFLAGS(sv) (sv)->sv_flags
aeea060c 122#define SvREFCNT(sv) (sv)->sv_refcnt
a863c7d1 123
dce16143 124#ifdef USE_THREADS
125
3d35f11b 126# if defined(VMS)
127# define ATOMIC_INC(count) __ATOMIC_INCREMENT_LONG(&count)
128# define ATOMIC_DEC_AND_TEST(res,count) res=(1==__ATOMIC_DECREMENT_LONG(&count))
129 # else
130# ifdef EMULATE_ATOMIC_REFCOUNTS
131 # define ATOMIC_INC(count) STMT_START { \
132 MUTEX_LOCK(&PL_svref_mutex); \
133 ++count; \
134 MUTEX_UNLOCK(&PL_svref_mutex); \
135 } STMT_END
136# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
137 MUTEX_LOCK(&PL_svref_mutex); \
138 res = (--count == 0); \
139 MUTEX_UNLOCK(&PL_svref_mutex); \
140 } STMT_END
141# else
142# define ATOMIC_INC(count) atomic_inc(&count)
143# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
144# endif /* EMULATE_ATOMIC_REFCOUNTS */
145# endif /* VMS */
dce16143 146#else
147# define ATOMIC_INC(count) (++count)
83b0a010 148# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
dce16143 149#endif /* USE_THREADS */
150
a863c7d1 151#ifdef __GNUC__
dce16143 152# define SvREFCNT_inc(sv) \
153 ({ \
154 SV *nsv = (SV*)(sv); \
155 if (nsv) \
156 ATOMIC_INC(SvREFCNT(nsv)); \
157 nsv; \
158 })
8990e307 159#else
a863c7d1 160# if defined(CRIPPLED_CC) || defined(USE_THREADS)
3d35f11b 161# if defined(VMS) && defined(__ALPHA)
162# define SvREFCNT_inc(sv) \
163 (PL_Sv=(SV*)(sv), (PL_Sv && __ATOMIC_INCREMENT_LONG(&(SvREFCNT(PL_Sv)))), (SV *)PL_Sv)
164# else
165# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
166# endif
a863c7d1 167# else
dce16143 168# define SvREFCNT_inc(sv) \
6b88bc9c 169 ((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
a863c7d1 170# endif
8990e307 171#endif
172
a863c7d1 173#define SvREFCNT_dec(sv) sv_free((SV*)sv)
174
8990e307 175#define SVTYPEMASK 0xff
176#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
79072805 177
178#define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
179
8990e307 180#define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
181#define SVs_PADTMP 0x00000200 /* in use as tmp */
182#define SVs_PADMY 0x00000400 /* in use a "my" variable */
183#define SVs_TEMP 0x00000800 /* string is stealable? */
184#define SVs_OBJECT 0x00001000 /* is "blessed" */
185#define SVs_GMG 0x00002000 /* has magical get method */
186#define SVs_SMG 0x00004000 /* has magical set method */
187#define SVs_RMG 0x00008000 /* has random magical methods */
188
189#define SVf_IOK 0x00010000 /* has valid public integer value */
190#define SVf_NOK 0x00020000 /* has valid public numeric value */
191#define SVf_POK 0x00040000 /* has valid public pointer value */
192#define SVf_ROK 0x00080000 /* has a valid reference pointer */
a0d0e21e 193
748a9306 194#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
8990e307 195#define SVf_OOK 0x00200000 /* has valid offset value */
196#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
197#define SVf_READONLY 0x00800000 /* may not be modified */
198
a0d0e21e 199
8990e307 200#define SVp_IOK 0x01000000 /* has valid non-public integer value */
201#define SVp_NOK 0x02000000 /* has valid non-public numeric value */
202#define SVp_POK 0x04000000 /* has valid non-public pointer value */
203#define SVp_SCREAM 0x08000000 /* has been studied? */
204
5bc28da9 205#define SVf_UTF8 0x20000000 /* SvPVX is UTF-8 encoded */
206
207#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE|SVf_UTF8)
208
a0d0e21e 209#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
210 SVp_IOK|SVp_NOK|SVp_POK)
211
9e7bc3e8 212#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
a0d0e21e 213
8990e307 214#define PRIVSHIFT 8
215
216/* Some private flags. */
217
f472eb5c 218/* SVpad_OUR may be set on SVt_PV{NV,MG,GV} types */
032d6771 219#define SVpad_OUR 0x80000000 /* pad name is "our" instead of "my" */
220
25da4f38 221#define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
222
223#define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */
8990e307 224
225#define SVpbm_VALID 0x80000000
bbce6d69 226#define SVpbm_TAIL 0x40000000
8990e307 227
25da4f38 228#define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */
229
bf6bd887 230#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
51594c39 231#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
bf6bd887 232
810b8aa5 233#define SVprv_WEAKREF 0x80000000 /* Weak reference */
234
ed6116ce 235struct xrv {
236 SV * xrv_rv; /* pointer to another SV */
237};
238
79072805 239struct xpv {
ed6116ce 240 char * xpv_pv; /* pointer to malloced string */
241 STRLEN xpv_cur; /* length of xpv_pv as a C string */
242 STRLEN xpv_len; /* allocated size */
79072805 243};
244
245struct xpviv {
ed6116ce 246 char * xpv_pv; /* pointer to malloced string */
247 STRLEN xpv_cur; /* length of xpv_pv as a C string */
248 STRLEN xpv_len; /* allocated size */
a0d0e21e 249 IV xiv_iv; /* integer value or pv offset */
79072805 250};
251
ff68c719 252struct xpvuv {
253 char * xpv_pv; /* pointer to malloced string */
254 STRLEN xpv_cur; /* length of xpv_pv as a C string */
255 STRLEN xpv_len; /* allocated size */
256 UV xuv_uv; /* unsigned value or pv offset */
257};
258
79072805 259struct xpvnv {
ed6116ce 260 char * xpv_pv; /* pointer to malloced string */
261 STRLEN xpv_cur; /* length of xpv_pv as a C string */
262 STRLEN xpv_len; /* allocated size */
a0d0e21e 263 IV xiv_iv; /* integer value or pv offset */
65202027 264 NV xnv_nv; /* numeric value, if any */
79072805 265};
266
6ee623d5 267/* These structure must match the beginning of struct xpvhv in hv.h. */
79072805 268struct xpvmg {
ed6116ce 269 char * xpv_pv; /* pointer to malloced string */
270 STRLEN xpv_cur; /* length of xpv_pv as a C string */
271 STRLEN xpv_len; /* allocated size */
a0d0e21e 272 IV xiv_iv; /* integer value or pv offset */
65202027 273 NV xnv_nv; /* numeric value, if any */
79072805 274 MAGIC* xmg_magic; /* linked list of magicalness */
275 HV* xmg_stash; /* class package */
276};
277
278struct xpvlv {
ed6116ce 279 char * xpv_pv; /* pointer to malloced string */
280 STRLEN xpv_cur; /* length of xpv_pv as a C string */
281 STRLEN xpv_len; /* allocated size */
a0d0e21e 282 IV xiv_iv; /* integer value or pv offset */
65202027 283 NV xnv_nv; /* numeric value, if any */
79072805 284 MAGIC* xmg_magic; /* linked list of magicalness */
285 HV* xmg_stash; /* class package */
8990e307 286
79072805 287 STRLEN xlv_targoff;
288 STRLEN xlv_targlen;
289 SV* xlv_targ;
290 char xlv_type;
291};
292
293struct xpvgv {
ed6116ce 294 char * xpv_pv; /* pointer to malloced string */
295 STRLEN xpv_cur; /* length of xpv_pv as a C string */
296 STRLEN xpv_len; /* allocated size */
a0d0e21e 297 IV xiv_iv; /* integer value or pv offset */
65202027 298 NV xnv_nv; /* numeric value, if any */
79072805 299 MAGIC* xmg_magic; /* linked list of magicalness */
300 HV* xmg_stash; /* class package */
8990e307 301
79072805 302 GP* xgv_gp;
303 char* xgv_name;
304 STRLEN xgv_namelen;
305 HV* xgv_stash;
a5f75d66 306 U8 xgv_flags;
79072805 307};
308
309struct xpvbm {
ed6116ce 310 char * xpv_pv; /* pointer to malloced string */
311 STRLEN xpv_cur; /* length of xpv_pv as a C string */
312 STRLEN xpv_len; /* allocated size */
a0d0e21e 313 IV xiv_iv; /* integer value or pv offset */
65202027 314 NV xnv_nv; /* numeric value, if any */
79072805 315 MAGIC* xmg_magic; /* linked list of magicalness */
316 HV* xmg_stash; /* class package */
8990e307 317
79072805 318 I32 xbm_useful; /* is this constant pattern being useful? */
319 U16 xbm_previous; /* how many characters in string before rare? */
320 U8 xbm_rare; /* rarest character in string */
321};
322
57843af0 323/* This structure much match XPVCV in cv.h */
44a8e56a 324
77a005ab 325typedef U16 cv_flags_t;
326
79072805 327struct xpvfm {
ed6116ce 328 char * xpv_pv; /* pointer to malloced string */
329 STRLEN xpv_cur; /* length of xpv_pv as a C string */
330 STRLEN xpv_len; /* allocated size */
a0d0e21e 331 IV xiv_iv; /* integer value or pv offset */
65202027 332 NV xnv_nv; /* numeric value, if any */
79072805 333 MAGIC* xmg_magic; /* linked list of magicalness */
334 HV* xmg_stash; /* class package */
8990e307 335
79072805 336 HV * xcv_stash;
337 OP * xcv_start;
338 OP * xcv_root;
0cb96387 339 void (*xcv_xsub)(pTHXo_ CV*);
a0d0e21e 340 ANY xcv_xsubany;
341 GV * xcv_gv;
57843af0 342 char * xcv_file;
b195d487 343 long xcv_depth; /* >= 2 indicates recursive call */
79072805 344 AV * xcv_padlist;
748a9306 345 CV * xcv_outside;
e858de61 346#ifdef USE_THREADS
f6d98b14 347 perl_mutex *xcv_mutexp; /* protects xcv_owner */
52e1cb5e 348 struct perl_thread *xcv_owner; /* current owner thread */
e858de61 349#endif /* USE_THREADS */
77a005ab 350 cv_flags_t xcv_flags;
44a8e56a 351
79072805 352 I32 xfm_lines;
353};
354
8990e307 355struct xpvio {
356 char * xpv_pv; /* pointer to malloced string */
357 STRLEN xpv_cur; /* length of xpv_pv as a C string */
358 STRLEN xpv_len; /* allocated size */
a0d0e21e 359 IV xiv_iv; /* integer value or pv offset */
65202027 360 NV xnv_nv; /* numeric value, if any */
8990e307 361 MAGIC* xmg_magic; /* linked list of magicalness */
362 HV* xmg_stash; /* class package */
363
760ac839 364 PerlIO * xio_ifp; /* ifp and ofp are normally the same */
365 PerlIO * xio_ofp; /* but sockets need separate streams */
4755096e 366 /* Cray addresses everything by word boundaries (64 bits) and
367 * code and data pointers cannot be mixed (which is exactly what
368 * Perl_filter_add() tries to do with the dirp), hence the following
369 * union trick (as suggested by Gurusamy Sarathy).
370 * For further information see Geir Johansen's problem report titled
371 [ID 20000612.002] Perl problem on Cray system
372 * The any pointer (known as IoANY()) will also be a good place
373 * to hang any IO disciplines to.
374 */
375 union {
376 DIR * xiou_dirp; /* for opendir, readdir, etc */
377 void * xiou_any; /* for alignment */
378 } xio_dirpu;
8990e307 379 long xio_lines; /* $. */
380 long xio_page; /* $% */
381 long xio_page_len; /* $= */
382 long xio_lines_left; /* $- */
383 char * xio_top_name; /* $^ */
384 GV * xio_top_gv; /* $^ */
385 char * xio_fmt_name; /* $~ */
386 GV * xio_fmt_gv; /* $~ */
387 char * xio_bottom_name;/* $^B */
388 GV * xio_bottom_gv; /* $^B */
389 short xio_subprocess; /* -| or |- */
390 char xio_type;
391 char xio_flags;
392};
4755096e 393#define xio_dirp xio_dirpu.xiou_dirp
394#define xio_any xio_dirpu.xiou_any
8990e307 395
e0c19803 396#define IOf_ARGV 1 /* this fp iterates over ARGV */
397#define IOf_START 2 /* check for null ARGV and substitute '-' */
398#define IOf_FLUSH 4 /* this fp wants a flush after write op */
399#define IOf_DIDTOP 8 /* just did top of form */
400#define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */
401#define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */
402#define IOf_FAKE_DIRP 64 /* xio_dirp is fake (source filters kludge) */
8990e307 403
ed6116ce 404/* The following macros define implementation-independent predicates on SVs. */
405
954c1994 406/*
407=for apidoc Am|bool|SvNIOK|SV* sv
408Returns a boolean indicating whether the SV contains a number, integer or
409double.
410
411=for apidoc Am|bool|SvNIOKp|SV* sv
412Returns a boolean indicating whether the SV contains a number, integer or
413double. Checks the B<private> setting. Use C<SvNIOK>.
414
415=for apidoc Am|void|SvNIOK_off|SV* sv
416Unsets the NV/IV status of an SV.
417
418=for apidoc Am|bool|SvOK|SV* sv
419Returns a boolean indicating whether the value is an SV.
420
421=for apidoc Am|bool|SvIOKp|SV* sv
422Returns a boolean indicating whether the SV contains an integer. Checks
423the B<private> setting. Use C<SvIOK>.
424
425=for apidoc Am|bool|SvNOKp|SV* sv
426Returns a boolean indicating whether the SV contains a double. Checks the
427B<private> setting. Use C<SvNOK>.
428
429=for apidoc Am|bool|SvPOKp|SV* sv
430Returns a boolean indicating whether the SV contains a character string.
431Checks the B<private> setting. Use C<SvPOK>.
432
433=for apidoc Am|bool|SvIOK|SV* sv
434Returns a boolean indicating whether the SV contains an integer.
435
436=for apidoc Am|void|SvIOK_on|SV* sv
437Tells an SV that it is an integer.
438
439=for apidoc Am|void|SvIOK_off|SV* sv
440Unsets the IV status of an SV.
441
442=for apidoc Am|void|SvIOK_only|SV* sv
443Tells an SV that it is an integer and disables all other OK bits.
444
445=for apidoc Am|bool|SvNOK|SV* sv
446Returns a boolean indicating whether the SV contains a double.
447
448=for apidoc Am|void|SvNOK_on|SV* sv
449Tells an SV that it is a double.
450
451=for apidoc Am|void|SvNOK_off|SV* sv
452Unsets the NV status of an SV.
453
454=for apidoc Am|void|SvNOK_only|SV* sv
455Tells an SV that it is a double and disables all other OK bits.
456
457=for apidoc Am|bool|SvPOK|SV* sv
458Returns a boolean indicating whether the SV contains a character
459string.
460
461=for apidoc Am|void|SvPOK_on|SV* sv
462Tells an SV that it is a string.
463
464=for apidoc Am|void|SvPOK_off|SV* sv
465Unsets the PV status of an SV.
466
467=for apidoc Am|void|SvPOK_only|SV* sv
468Tells an SV that it is a string and disables all other OK bits.
469
470=for apidoc Am|bool|SvOOK|SV* sv
471Returns a boolean indicating whether the SvIVX is a valid offset value for
472the SvPVX. This hack is used internally to speed up removal of characters
473from the beginning of a SvPV. When SvOOK is true, then the start of the
474allocated string buffer is really (SvPVX - SvIVX).
475
476=for apidoc Am|bool|SvROK|SV* sv
477Tests if the SV is an RV.
478
479=for apidoc Am|void|SvROK_on|SV* sv
480Tells an SV that it is an RV.
481
482=for apidoc Am|void|SvROK_off|SV* sv
483Unsets the RV status of an SV.
484
485=for apidoc Am|SV*|SvRV|SV* sv
486Dereferences an RV to return the SV.
487
488=for apidoc Am|IV|SvIVX|SV* sv
489Returns the integer which is stored in the SV, assuming SvIOK is
490true.
491
492=for apidoc Am|UV|SvUVX|SV* sv
493Returns the unsigned integer which is stored in the SV, assuming SvIOK is
494true.
495
496=for apidoc Am|NV|SvNVX|SV* sv
497Returns the double which is stored in the SV, assuming SvNOK is
498true.
499
500=for apidoc Am|char*|SvPVX|SV* sv
501Returns a pointer to the string in the SV. The SV must contain a
502string.
503
504=for apidoc Am|STRLEN|SvCUR|SV* sv
505Returns the length of the string which is in the SV. See C<SvLEN>.
506
507=for apidoc Am|STRLEN|SvLEN|SV* sv
659239a4 508Returns the size of the string buffer in the SV, not including any part
509attributable to C<SvOOK>. See C<SvCUR>.
954c1994 510
511=for apidoc Am|char*|SvEND|SV* sv
512Returns a pointer to the last character in the string which is in the SV.
513See C<SvCUR>. Access the character as *(SvEND(sv)).
514
515=for apidoc Am|HV*|SvSTASH|SV* sv
516Returns the stash of the SV.
517
518=for apidoc Am|void|SvCUR_set|SV* sv|STRLEN len
519Set the length of the string which is in the SV. See C<SvCUR>.
520
521=cut
522*/
523
79072805 524#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
748a9306 525#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
a0d0e21e 526#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
25da4f38 527 SVp_IOK|SVp_NOK|SVf_IVisUV))
79072805 528
463ee0b2 529#define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
25da4f38 530#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
d41ff1b8 531 SVf_IVisUV|SVf_UTF8), \
25da4f38 532 SvOOK_off(sv))
d41ff1b8 533#define SvOK_off_exc_UV(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
534 SVf_UTF8), \
a0d0e21e 535 SvOOK_off(sv))
79072805 536
8990e307 537#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
538#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
155aba94 539#define SvIOKp_on(sv) ((void)SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
8990e307 540#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
541#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
542#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
543#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
463ee0b2 544
79072805 545#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
155aba94 546#define SvIOK_on(sv) ((void)SvOOK_off(sv), \
a0d0e21e 547 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
25da4f38 548#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
155aba94 549#define SvIOK_only(sv) ((void)SvOK_off(sv), \
a0d0e21e 550 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
155aba94 551#define SvIOK_only_UV(sv) ((void)SvOK_off_exc_UV(sv), \
25da4f38 552 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
70401c6b 553
25da4f38 554#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
555 == (SVf_IOK|SVf_IVisUV))
556#define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
557 == SVf_IOK)
558
559#define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV)
560#define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV)
561#define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV)
79072805 562
563#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
a0d0e21e 564#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
8990e307 565#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
155aba94 566#define SvNOK_only(sv) ((void)SvOK_off(sv), \
a0d0e21e 567 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
79072805 568
a7cb1f99 569#define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8)
570#define SvUTF8_on(sv) (SvFLAGS(sv) |= (SVf_UTF8))
571#define SvUTF8_off(sv) (SvFLAGS(sv) &= ~(SVf_UTF8))
5bc28da9 572
79072805 573#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
a0d0e21e 574#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
8990e307 575#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
d41ff1b8 576#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
577 SVf_IVisUV|SVf_UTF8), \
578 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
579#define SvPOK_only_UTF8(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
580 SVf_IVisUV), \
a0d0e21e 581 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
79072805 582
583#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
155aba94 584#define SvOOK_on(sv) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
79072805 585#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
79072805 586
a0d0e21e 587#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
588#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
589#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
590
ed6116ce 591#define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
a0d0e21e 592#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
a0d0e21e 593#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
79072805 594
8990e307 595#define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
596#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
597#define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
79072805 598
8990e307 599#define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
600#define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
601#define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
ed6116ce 602
8990e307 603#define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
604#define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
605#define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
ed6116ce 606
8990e307 607#define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
608#define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
609#define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
ed6116ce 610
9e7bc3e8 611#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
612#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
613#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
a0d0e21e 614
615/*
616#define Gv_AMG(stash) \
617 (HV_AMAGICmb(stash) && \
618 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
619*/
3280af22 620#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
a0d0e21e 621
810b8aa5 622#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
623 == (SVf_ROK|SVprv_WEAKREF))
624#define SvWEAKREF_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_WEAKREF))
625#define SvWEAKREF_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_WEAKREF))
626
a0d0e21e 627#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
ed6116ce 628
8990e307 629#define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
ed6116ce 630
8990e307 631#define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
632#define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
633#define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
ed6116ce 634
8990e307 635#define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
636#define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
ed6116ce 637
8990e307 638#define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
639#define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
640#define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
79072805 641
8990e307 642#define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
643#define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
644#define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
79072805 645
8990e307 646#define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
647#define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
648#define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
79072805 649
8990e307 650#define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
651#define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
652#define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
79072805 653
8990e307 654#define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
655#define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
656#define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
79072805 657
25da4f38 658#define SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL)
659#define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL)
660#define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL)
661
8990e307 662#define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
663#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
664#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
665
8990e307 666#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
667#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
668#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
669
ed6116ce 670#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
671#define SvRVx(sv) SvRV(sv)
672
463ee0b2 673#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
674#define SvIVXx(sv) SvIVX(sv)
ff68c719 675#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
676#define SvUVXx(sv) SvUVX(sv)
463ee0b2 677#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
678#define SvNVXx(sv) SvNVX(sv)
679#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
680#define SvPVXx(sv) SvPVX(sv)
79072805 681#define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
79072805 682#define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
683#define SvLENx(sv) SvLEN(sv)
684#define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
6b88bc9c 685#define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv))
79072805 686#define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
687#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
688
689#define SvIV_set(sv, val) \
80b92232 690 STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
691 (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
79072805 692#define SvNV_set(sv, val) \
80b92232 693 STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
694 (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
79072805 695#define SvPV_set(sv, val) \
80b92232 696 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
697 (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
79072805 698#define SvCUR_set(sv, val) \
80b92232 699 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
700 (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
79072805 701#define SvLEN_set(sv, val) \
80b92232 702 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
703 (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
79072805 704#define SvEND_set(sv, val) \
80b92232 705 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
706 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
79072805 707
708#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
709#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
710#define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
711
712#define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
713
714#define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
715#define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
716#define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
717#define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
718
8990e307 719#define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
720#define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
721#define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
4755096e 722#define IoANY(sv) ((XPVIO*) SvANY(sv))->xio_any
8990e307 723#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
724#define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
725#define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
726#define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
727#define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
728#define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
729#define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
730#define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
731#define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
732#define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
733#define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
734#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
735#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
736
50952442 737/* IoTYPE(sv) is a single character telling the type of I/O connection. */
738#define IoTYPE_RDONLY '<'
739#define IoTYPE_WRONLY '>'
740#define IoTYPE_RDWR '+'
741#define IoTYPE_APPEND 'a'
742#define IoTYPE_PIPE '|'
743#define IoTYPE_STD '-' /* stdin or stdout */
744#define IoTYPE_SOCKET 's'
745#define IoTYPE_CLOSED ' '
03fcf2fc 746
747/*
954c1994 748=for apidoc Am|bool|SvTAINTED|SV* sv
749Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if
750not.
751
752=for apidoc Am|void|SvTAINTED_on|SV* sv
753Marks an SV as tainted.
754
755=for apidoc Am|void|SvTAINTED_off|SV* sv
756Untaints an SV. Be I<very> careful with this routine, as it short-circuits
757some of Perl's fundamental security features. XS module authors should not
758use this function unless they fully understand all the implications of
759unconditionally untainting the value. Untainting should be done in the
760standard perl fashion, via a carefully crafted regexp, rather than directly
761untainting variables.
762
763=for apidoc Am|void|SvTAINT|SV* sv
764Taints an SV if tainting is enabled
765
766=cut
767*/
768
bbce6d69 769#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
3280af22 770#define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END
771#define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END
bbce6d69 772
c6ee37c5 773#define SvTAINT(sv) \
774 STMT_START { \
3280af22 775 if (PL_tainting) { \
c6ee37c5 776 dTHR; \
3280af22 777 if (PL_tainted) \
c6ee37c5 778 SvTAINTED_on(sv); \
779 } \
780 } STMT_END
79072805 781
954c1994 782/*
783=for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len
784Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
785force if you are going to update the SvPVX directly.
786
787=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
788Returns a pointer to the string in the SV, or a stringified form of the SV
789if the SV does not contain a string. Handles 'get' magic.
790
791=for apidoc Am|char*|SvPV_nolen|SV* sv
792Returns a pointer to the string in the SV, or a stringified form of the SV
793if the SV does not contain a string. Handles 'get' magic.
794
795=for apidoc Am|IV|SvIV|SV* sv
796Coerces the given SV to an integer and returns it.
797
798=for apidoc Am|NV|SvNV|SV* sv
799Coerce the given SV to a double and return it.
800
801=for apidoc Am|UV|SvUV|SV* sv
802Coerces the given SV to an unsigned integer and returns it.
803
804=for apidoc Am|bool|SvTRUE|SV* sv
805Returns a boolean indicating whether Perl would evaluate the SV as true or
806false, defined or undefined. Does not handle 'get' magic.
807
808=cut
809*/
810
a0d0e21e 811#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
463ee0b2 812#define SvPV(sv, lp) sv_pvn(sv, &lp)
1fa8b10d 813#define SvPV_nolen(sv) sv_pv(sv)
5bc28da9 814
815#define SvPVutf8_force(sv, lp) sv_pvutf8n_force(sv, &lp)
816#define SvPVutf8(sv, lp) sv_pvutf8n(sv, &lp)
817#define SvPVutf8_nolen(sv) sv_pvutf8(sv)
818
819#define SvPVbyte_force(sv, lp) sv_pvbyte_force(sv, &lp)
820#define SvPVbyte(sv, lp) sv_pvbyten(sv, &lp)
821#define SvPVbyte_nolen(sv) sv_pvbyte(sv)
822
823#define SvPVx(sv, lp) sv_pvn(sv, &lp)
824#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
825#define SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
826#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
827#define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
828#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
829
4e35701f 830#define SvIVx(sv) sv_iv(sv)
831#define SvUVx(sv) sv_uv(sv)
832#define SvNVx(sv) sv_nv(sv)
5bc28da9 833
4e35701f 834#define SvTRUEx(sv) sv_true(sv)
835
836#define SvIV(sv) SvIVx(sv)
837#define SvNV(sv) SvNVx(sv)
25da4f38 838#define SvUV(sv) SvUVx(sv)
4e35701f 839#define SvTRUE(sv) SvTRUEx(sv)
79072805 840
a80f87c4 841#ifndef CRIPPLED_CC
842/* redefine some things to more efficient inlined versions */
79072805 843
25da4f38 844/* Let us hope that bitmaps for UV and IV are the same */
ff68c719 845#undef SvIV
463ee0b2 846#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
79072805 847
ff68c719 848#undef SvUV
849#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
850
851#undef SvNV
463ee0b2 852#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
79072805 853
ff68c719 854#undef SvPV
855#define SvPV(sv, lp) \
5bc28da9 856 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
857 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
70401c6b 858
79072805 859
ff68c719 860#undef SvPV_force
861#define SvPV_force(sv, lp) \
862 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
863 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
a0d0e21e 864
1fa8b10d 865#undef SvPV_nolen
866#define SvPV_nolen(sv) \
5bc28da9 867 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
868 ? SvPVX(sv) : sv_2pv_nolen(sv))
70401c6b 869
5bc28da9 870#undef SvPVutf8
871#define SvPVutf8(sv, lp) \
872 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
873 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
70401c6b 874
5bc28da9 875#undef SvPVutf8_force
876#define SvPVutf8_force(sv, lp) \
70401c6b 877 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
5bc28da9 878 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
879
880#undef SvPVutf8_nolen
881#define SvPVutf8_nolen(sv) \
70401c6b 882 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
5bc28da9 883 ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
70401c6b 884
5bc28da9 885#undef SvPVutf8
886#define SvPVutf8(sv, lp) \
887 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
888 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
70401c6b 889
5bc28da9 890#undef SvPVutf8_force
891#define SvPVutf8_force(sv, lp) \
70401c6b 892 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
5bc28da9 893 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
894
895#undef SvPVutf8_nolen
896#define SvPVutf8_nolen(sv) \
897 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
898 ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
70401c6b 899
5bc28da9 900#undef SvPVbyte
901#define SvPVbyte(sv, lp) \
902 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
903 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp))
70401c6b 904
5bc28da9 905#undef SvPVbyte_force
906#define SvPVbyte_force(sv, lp) \
907 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \
908 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyte_force(sv, &lp))
909
910#undef SvPVbyte_nolen
911#define SvPVbyte_nolen(sv) \
912 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\
913 ? SvPVX(sv) : sv_2pvbyte_nolen(sv))
70401c6b 914
1fa8b10d 915
a80f87c4 916#ifdef __GNUC__
917# undef SvIVx
918# undef SvUVx
919# undef SvNVx
920# undef SvPVx
5bc28da9 921# undef SvPVutf8x
922# undef SvPVbytex
a80f87c4 923# undef SvTRUE
924# undef SvTRUEx
925# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
926# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
927# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
928# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
5bc28da9 929# define SvPVutf8x(sv, lp) ({SV *nsv = (sv); SvPVutf8(nsv, lp); })
930# define SvPVbytex(sv, lp) ({SV *nsv = (sv); SvPVbyte(nsv, lp); })
a80f87c4 931# define SvTRUE(sv) ( \
8990e307 932 !sv \
933 ? 0 \
934 : SvPOK(sv) \
a80f87c4 935 ? (({XPV *nxpv = (XPV*)SvANY(sv); \
936 nxpv && \
c2f1de04 937 (nxpv->xpv_cur > 1 || \
a80f87c4 938 (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \
79072805 939 ? 1 \
940 : 0) \
941 : \
942 SvIOK(sv) \
463ee0b2 943 ? SvIVX(sv) != 0 \
79072805 944 : SvNOK(sv) \
463ee0b2 945 ? SvNVX(sv) != 0.0 \
946 : sv_2bool(sv) )
a80f87c4 947# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
948#else /* __GNUC__ */
949#ifndef USE_THREADS
950/* These inlined macros use globals, which will require a thread
951 * declaration in user code, so we avoid them under threads */
952
953# undef SvIVx
954# undef SvUVx
955# undef SvNVx
956# undef SvPVx
5bc28da9 957# undef SvPVutf8x
958# undef SvPVbytex
a80f87c4 959# undef SvTRUE
960# undef SvTRUEx
6b88bc9c 961# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
962# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
963# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
964# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
5bc28da9 965# define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
f83ee824 966# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
a80f87c4 967# define SvTRUE(sv) ( \
968 !sv \
969 ? 0 \
970 : SvPOK(sv) \
6b88bc9c 971 ? ((PL_Xpv = (XPV*)SvANY(sv)) && \
c2f1de04 972 (PL_Xpv->xpv_cur > 1 || \
6b88bc9c 973 (PL_Xpv->xpv_cur && *PL_Xpv->xpv_pv != '0')) \
a80f87c4 974 ? 1 \
975 : 0) \
976 : \
977 SvIOK(sv) \
978 ? SvIVX(sv) != 0 \
979 : SvNOK(sv) \
980 ? SvNVX(sv) != 0.0 \
981 : sv_2bool(sv) )
6b88bc9c 982# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
a80f87c4 983#endif /* !USE_THREADS */
984#endif /* !__GNU__ */
985#endif /* !CRIPPLED_CC */
79072805 986
954c1994 987/*
988=for apidoc Am|SV*|newRV_inc|SV* sv
989
990Creates an RV wrapper for an SV. The reference count for the original SV is
991incremented.
992
993=cut
994*/
995
5f05dabc 996#define newRV_inc(sv) newRV(sv)
5f05dabc 997
ef50df4b 998/* the following macros update any magic values this sv is associated with */
79072805 999
954c1994 1000/*
1001=for apidoc Am|void|SvGETMAGIC|SV* sv
1002Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its
1003argument more than once.
1004
1005=for apidoc Am|void|SvSETMAGIC|SV* sv
1006Invokes C<mg_set> on an SV if it has 'set' magic. This macro evaluates its
1007argument more than once.
1008
1009=for apidoc Am|void|SvSetSV|SV* dsb|SV* ssv
1010Calls C<sv_setsv> if dsv is not the same as ssv. May evaluate arguments
1011more than once.
1012
1013=for apidoc Am|void|SvSetSV_nosteal|SV* dsv|SV* ssv
1014Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
1015ssv. May evaluate arguments more than once.
1016
1017=for apidoc Am|void|SvGROW|SV* sv|STRLEN len
1018Expands the character buffer in the SV so that it has room for the
1019indicated number of bytes (remember to reserve space for an extra trailing
1020NUL character). Calls C<sv_grow> to perform the expansion if necessary.
1021Returns a pointer to the character buffer.
1022
1023=cut
1024*/
1025
189b2af5 1026#define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END
1027#define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END
79072805 1028
54310121 1029#define SvSetSV_and(dst,src,finally) \
189b2af5 1030 STMT_START { \
54310121 1031 if ((dst) != (src)) { \
1032 sv_setsv(dst, src); \
1033 finally; \
189b2af5 1034 } \
1035 } STMT_END
54310121 1036#define SvSetSV_nosteal_and(dst,src,finally) \
189b2af5 1037 STMT_START { \
8ebc5c01 1038 if ((dst) != (src)) { \
1039 U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
1040 SvTEMP_off(src); \
1041 sv_setsv(dst, src); \
1042 SvFLAGS(src) |= tMpF; \
54310121 1043 finally; \
189b2af5 1044 } \
1045 } STMT_END
79072805 1046
54310121 1047#define SvSetSV(dst,src) \
c9d716f7 1048 SvSetSV_and(dst,src,/*nothing*/;)
54310121 1049#define SvSetSV_nosteal(dst,src) \
c9d716f7 1050 SvSetSV_nosteal_and(dst,src,/*nothing*/;)
54310121 1051
1052#define SvSetMagicSV(dst,src) \
1053 SvSetSV_and(dst,src,SvSETMAGIC(dst))
1054#define SvSetMagicSV_nosteal(dst,src) \
1055 SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
1056
3967c732 1057#ifdef DEBUGGING
79072805 1058#define SvPEEK(sv) sv_peek(sv)
3967c732 1059#else
1060#define SvPEEK(sv) ""
1061#endif
79072805 1062
3280af22 1063#define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no)
36477c24 1064
3280af22 1065#define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
54310121 1066
79072805 1067#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
1068
933fea7f 1069#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
1070#define Sv_Grow sv_grow
3d35f11b 1071