3 * Copyright (c) 1991-1994, Larry Wall
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.
11 #undef sv_flags /* Convex has this in <signal.h> for sigvec() */
33 /* Using C's structural equivalence to help emulate C++ inheritance here... */
36 void* sv_any; /* pointer to something */
37 U32 sv_refcnt; /* how many references to us */
38 U32 sv_flags; /* what we are */
42 XPVGV* sv_any; /* pointer to something */
43 U32 sv_refcnt; /* how many references to us */
44 U32 sv_flags; /* what we are */
48 XPVCV* sv_any; /* pointer to something */
49 U32 sv_refcnt; /* how many references to us */
50 U32 sv_flags; /* what we are */
54 XPVAV* sv_any; /* pointer to something */
55 U32 sv_refcnt; /* how many references to us */
56 U32 sv_flags; /* what we are */
60 XPVHV* sv_any; /* pointer to something */
61 U32 sv_refcnt; /* how many references to us */
62 U32 sv_flags; /* what we are */
66 XPVIO* sv_any; /* pointer to something */
67 U32 sv_refcnt; /* how many references to us */
68 U32 sv_flags; /* what we are */
71 #define SvANY(sv) (sv)->sv_any
72 #define SvFLAGS(sv) (sv)->sv_flags
74 #define SvREFCNT(sv) (sv)->sv_refcnt
76 #define SvREFCNT_inc(sv) sv_newref((SV*)sv)
77 #define SvREFCNT_dec(sv) sv_free((SV*)sv)
79 #define SvREFCNT_inc(sv) ((Sv = (SV*)(sv)), \
80 (Sv && ++SvREFCNT(Sv)), (SV*)Sv)
81 #define SvREFCNT_dec(sv) sv_free((SV*)sv)
84 #define SVTYPEMASK 0xff
85 #define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
87 #define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
89 #define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
90 #define SVs_PADTMP 0x00000200 /* in use as tmp */
91 #define SVs_PADMY 0x00000400 /* in use a "my" variable */
92 #define SVs_TEMP 0x00000800 /* string is stealable? */
93 #define SVs_OBJECT 0x00001000 /* is "blessed" */
94 #define SVs_GMG 0x00002000 /* has magical get method */
95 #define SVs_SMG 0x00004000 /* has magical set method */
96 #define SVs_RMG 0x00008000 /* has random magical methods */
98 #define SVf_IOK 0x00010000 /* has valid public integer value */
99 #define SVf_NOK 0x00020000 /* has valid public numeric value */
100 #define SVf_POK 0x00040000 /* has valid public pointer value */
101 #define SVf_ROK 0x00080000 /* has a valid reference pointer */
103 #define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
104 #define SVf_OOK 0x00200000 /* has valid offset value */
105 #define SVf_BREAK 0x00400000 /* refcnt is artificially low */
106 #define SVf_READONLY 0x00800000 /* may not be modified */
108 #define SVf_THINKFIRST (SVf_READONLY|SVf_ROK)
110 #define SVp_IOK 0x01000000 /* has valid non-public integer value */
111 #define SVp_NOK 0x02000000 /* has valid non-public numeric value */
112 #define SVp_POK 0x04000000 /* has valid non-public pointer value */
113 #define SVp_SCREAM 0x08000000 /* has been studied? */
115 #define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
116 SVp_IOK|SVp_NOK|SVp_POK)
119 #define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
120 #endif /* OVERLOAD */
124 /* Some private flags. */
126 #define SVpfm_COMPILED 0x80000000
128 #define SVpbm_VALID 0x80000000
129 #define SVpbm_TAIL 0x40000000
131 #define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
132 #define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
135 #define SVpgv_AM 0x40000000
136 /* #define SVpgv_badAM 0x20000000 */
137 #endif /* OVERLOAD */
140 SV * xrv_rv; /* pointer to another SV */
144 char * xpv_pv; /* pointer to malloced string */
145 STRLEN xpv_cur; /* length of xpv_pv as a C string */
146 STRLEN xpv_len; /* allocated size */
150 char * xpv_pv; /* pointer to malloced string */
151 STRLEN xpv_cur; /* length of xpv_pv as a C string */
152 STRLEN xpv_len; /* allocated size */
153 IV xiv_iv; /* integer value or pv offset */
157 char * xpv_pv; /* pointer to malloced string */
158 STRLEN xpv_cur; /* length of xpv_pv as a C string */
159 STRLEN xpv_len; /* allocated size */
160 UV xuv_uv; /* unsigned value or pv offset */
164 char * xpv_pv; /* pointer to malloced string */
165 STRLEN xpv_cur; /* length of xpv_pv as a C string */
166 STRLEN xpv_len; /* allocated size */
167 IV xiv_iv; /* integer value or pv offset */
168 double xnv_nv; /* numeric value, if any */
172 char * xpv_pv; /* pointer to malloced string */
173 STRLEN xpv_cur; /* length of xpv_pv as a C string */
174 STRLEN xpv_len; /* allocated size */
175 IV xiv_iv; /* integer value or pv offset */
176 double xnv_nv; /* numeric value, if any */
177 MAGIC* xmg_magic; /* linked list of magicalness */
178 HV* xmg_stash; /* class package */
182 char * xpv_pv; /* pointer to malloced string */
183 STRLEN xpv_cur; /* length of xpv_pv as a C string */
184 STRLEN xpv_len; /* allocated size */
185 IV xiv_iv; /* integer value or pv offset */
186 double xnv_nv; /* numeric value, if any */
187 MAGIC* xmg_magic; /* linked list of magicalness */
188 HV* xmg_stash; /* class package */
197 char * xpv_pv; /* pointer to malloced string */
198 STRLEN xpv_cur; /* length of xpv_pv as a C string */
199 STRLEN xpv_len; /* allocated size */
200 IV xiv_iv; /* integer value or pv offset */
201 double xnv_nv; /* numeric value, if any */
202 MAGIC* xmg_magic; /* linked list of magicalness */
203 HV* xmg_stash; /* class package */
213 char * xpv_pv; /* pointer to malloced string */
214 STRLEN xpv_cur; /* length of xpv_pv as a C string */
215 STRLEN xpv_len; /* allocated size */
216 IV xiv_iv; /* integer value or pv offset */
217 double xnv_nv; /* numeric value, if any */
218 MAGIC* xmg_magic; /* linked list of magicalness */
219 HV* xmg_stash; /* class package */
221 I32 xbm_useful; /* is this constant pattern being useful? */
222 U16 xbm_previous; /* how many characters in string before rare? */
223 U8 xbm_rare; /* rarest character in string */
227 char * xpv_pv; /* pointer to malloced string */
228 STRLEN xpv_cur; /* length of xpv_pv as a C string */
229 STRLEN xpv_len; /* allocated size */
230 IV xiv_iv; /* integer value or pv offset */
231 double xnv_nv; /* numeric value, if any */
232 MAGIC* xmg_magic; /* linked list of magicalness */
233 HV* xmg_stash; /* class package */
238 void (*xcv_xsub)_((CV*));
242 long xcv_depth; /* >= 2 indicates recursive call */
249 char * xpv_pv; /* pointer to malloced string */
250 STRLEN xpv_cur; /* length of xpv_pv as a C string */
251 STRLEN xpv_len; /* allocated size */
252 IV xiv_iv; /* integer value or pv offset */
253 double xnv_nv; /* numeric value, if any */
254 MAGIC* xmg_magic; /* linked list of magicalness */
255 HV* xmg_stash; /* class package */
257 PerlIO * xio_ifp; /* ifp and ofp are normally the same */
258 PerlIO * xio_ofp; /* but sockets need separate streams */
259 DIR * xio_dirp; /* for opendir, readdir, etc */
260 long xio_lines; /* $. */
261 long xio_page; /* $% */
262 long xio_page_len; /* $= */
263 long xio_lines_left; /* $- */
264 char * xio_top_name; /* $^ */
265 GV * xio_top_gv; /* $^ */
266 char * xio_fmt_name; /* $~ */
267 GV * xio_fmt_gv; /* $~ */
268 char * xio_bottom_name;/* $^B */
269 GV * xio_bottom_gv; /* $^B */
270 short xio_subprocess; /* -| or |- */
275 #define IOf_ARGV 1 /* this fp iterates over ARGV */
276 #define IOf_START 2 /* check for null ARGV and substitute '-' */
277 #define IOf_FLUSH 4 /* this fp wants a flush after write op */
278 #define IOf_DIDTOP 8 /* just did top of form */
279 #define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */
281 /* The following macros define implementation-independent predicates on SVs. */
283 #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
284 #define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
285 #define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
288 #define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
291 #define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
294 #define SvOK_off(sv) (SvFLAGS(sv) &= ~SVf_OK, SvOOK_off(sv))
295 #endif /* OVERLOAD */
297 #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
298 #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
299 #define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
300 #define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
301 #define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
302 #define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
303 #define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
305 #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
306 #define SvIOK_on(sv) (SvOOK_off(sv), \
307 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
308 #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
309 #define SvIOK_only(sv) (SvOOK_off(sv), SvOK_off(sv), \
310 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
312 #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
313 #define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
314 #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
315 #define SvNOK_only(sv) (SvOK_off(sv), \
316 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
318 #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
319 #define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
320 #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
323 #define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
324 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
326 #define SvPOK_only(sv) (SvFLAGS(sv) &= ~SVf_OK, \
327 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
328 #endif /* OVERLOAD */
330 #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
331 #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
332 #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
334 #define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
335 #define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
336 #define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
338 #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
339 #define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
342 #define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
344 #define SvROK_off(sv) (SvFLAGS(sv) &= ~SVf_ROK)
345 #endif /* OVERLOAD */
347 #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
348 #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
349 #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
351 #define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
352 #define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
353 #define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
355 #define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
356 #define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
357 #define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
359 #define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
360 #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
361 #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
364 #define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
365 #define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
366 #define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
369 #define Gv_AMG(stash) \
370 (HV_AMAGICmb(stash) && \
371 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
373 #define Gv_AMG(stash) (amagic_generation && Gv_AMupdate(stash))
374 #endif /* OVERLOAD */
376 #define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
378 #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
380 #define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
381 #define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
382 #define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
384 #define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
385 #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
387 #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
388 #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
389 #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
391 #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
392 #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
393 #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
395 #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
396 #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
397 #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
399 #define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
400 #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
401 #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
403 #define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
404 #define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
405 #define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
407 #define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
408 #define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
409 #define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
411 #define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
412 #define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
413 #define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
415 #define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
416 #define SvRVx(sv) SvRV(sv)
418 #define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
419 #define SvIVXx(sv) SvIVX(sv)
420 #define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
421 #define SvUVXx(sv) SvUVX(sv)
422 #define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
423 #define SvNVXx(sv) SvNVX(sv)
424 #define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
425 #define SvPVXx(sv) SvPVX(sv)
426 #define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
427 #define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
428 #define SvLENx(sv) SvLEN(sv)
429 #define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
430 #define SvENDx(sv) ((Sv = (sv)), SvEND(Sv))
431 #define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
432 #define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
434 #define SvIV_set(sv, val) \
435 STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
436 (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
437 #define SvNV_set(sv, val) \
438 STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
439 (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
440 #define SvPV_set(sv, val) \
441 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
442 (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
443 #define SvCUR_set(sv, val) \
444 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
445 (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
446 #define SvLEN_set(sv, val) \
447 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
448 (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
449 #define SvEND_set(sv, val) \
450 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
451 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
453 #define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
454 #define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
455 #define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
457 #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
459 #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
460 #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
461 #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
462 #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
464 #define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
465 #define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
466 #define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
467 #define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
468 #define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
469 #define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
470 #define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
471 #define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
472 #define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
473 #define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
474 #define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
475 #define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
476 #define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
477 #define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
478 #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
479 #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
481 #define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
482 #define SvTAINTED_on(sv) STMT_START{ if(tainting){sv_taint(sv);} }STMT_END
483 #define SvTAINTED_off(sv) STMT_START{ if(tainting){sv_untaint(sv);} }STMT_END
485 #define SvTAINT(sv) STMT_START{ if(tainted){SvTAINTED_on(sv);} }STMT_END
491 double SvNV _((SV* sv));
492 #define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
493 #define SvPV(sv, lp) sv_pvn(sv, &lp)
494 char *sv_pvn _((SV *, STRLEN *));
495 I32 SvTRUE _((SV *));
497 #define SvIVx(sv) SvIV(sv)
498 #define SvUVx(sv) SvUV(sv)
499 #define SvNVx(sv) SvNV(sv)
500 #define SvPVx(sv, lp) sv_pvn(sv, &lp)
501 #define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
502 #define SvTRUEx(sv) SvTRUE(sv)
504 #else /* !CRIPPLED_CC */
507 #define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
510 #define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
513 #define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
516 #define SvPV(sv, lp) \
517 (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
520 #define SvPV_force(sv, lp) \
521 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
522 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
525 #define SvTRUE(sv) ( \
529 ? ((Xpv = (XPV*)SvANY(sv)) && \
530 (*Xpv->xpv_pv > '0' || \
531 Xpv->xpv_cur > 1 || \
532 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')) \
542 #define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
543 #define SvUVx(sv) ((Sv = (sv)), SvUV(Sv))
544 #define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
545 #define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
546 #define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
548 #endif /* CRIPPLED_CC */
550 #define newRV_inc(sv) newRV(sv)
552 SV *newRV_noinc _((SV *));
554 #define newRV_noinc(sv) ((Sv = newRV(sv)), --SvREFCNT(SvRV(Sv)), Sv)
557 /* the following macro updates any magic values this sv is associated with */
559 #define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
561 #define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
563 #define SvPEEK(sv) sv_peek(sv)
565 #define SvIMMORTAL(sv) ((sv)==&sv_undef || (sv)==&sv_yes || (sv)==&sv_no)
567 #define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
570 # define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
571 # define Sv_Grow sv_grow
573 /* extra parentheses intentionally NOT placed around "len"! */
574 # define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \
575 ? sv_grow(sv,(unsigned long)len) : SvPVX(sv))
576 # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))