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_CASEFOLD 0x40000000
130 #define SVpbm_TAIL 0x20000000
132 #define SVpgv_MULTI 0x80000000
134 #define SVpcv_CLONE 0x80000000 /* anon CV uses external lexicals */
135 #define SVpcv_CLONED 0x40000000 /* a clone of one of those */
136 #define SVpcv_ANON 0x20000000 /* CvGV() can't be trusted */
139 #define SVpgv_AM 0x40000000
140 /* #define SVpgv_badAM 0x20000000 */
141 #endif /* OVERLOAD */
144 SV * xrv_rv; /* pointer to another SV */
148 char * xpv_pv; /* pointer to malloced string */
149 STRLEN xpv_cur; /* length of xpv_pv as a C string */
150 STRLEN xpv_len; /* allocated size */
154 char * xpv_pv; /* pointer to malloced string */
155 STRLEN xpv_cur; /* length of xpv_pv as a C string */
156 STRLEN xpv_len; /* allocated size */
157 IV xiv_iv; /* integer value or pv offset */
161 char * xpv_pv; /* pointer to malloced string */
162 STRLEN xpv_cur; /* length of xpv_pv as a C string */
163 STRLEN xpv_len; /* allocated size */
164 IV xiv_iv; /* integer value or pv offset */
165 double xnv_nv; /* numeric value, if any */
169 char * xpv_pv; /* pointer to malloced string */
170 STRLEN xpv_cur; /* length of xpv_pv as a C string */
171 STRLEN xpv_len; /* allocated size */
172 IV xiv_iv; /* integer value or pv offset */
173 double xnv_nv; /* numeric value, if any */
174 MAGIC* xmg_magic; /* linked list of magicalness */
175 HV* xmg_stash; /* class package */
179 char * xpv_pv; /* pointer to malloced string */
180 STRLEN xpv_cur; /* length of xpv_pv as a C string */
181 STRLEN xpv_len; /* allocated size */
182 IV xiv_iv; /* integer value or pv offset */
183 double xnv_nv; /* numeric value, if any */
184 MAGIC* xmg_magic; /* linked list of magicalness */
185 HV* xmg_stash; /* class package */
194 char * xpv_pv; /* pointer to malloced string */
195 STRLEN xpv_cur; /* length of xpv_pv as a C string */
196 STRLEN xpv_len; /* allocated size */
197 IV xiv_iv; /* integer value or pv offset */
198 double xnv_nv; /* numeric value, if any */
199 MAGIC* xmg_magic; /* linked list of magicalness */
200 HV* xmg_stash; /* class package */
209 char * xpv_pv; /* pointer to malloced string */
210 STRLEN xpv_cur; /* length of xpv_pv as a C string */
211 STRLEN xpv_len; /* allocated size */
212 IV xiv_iv; /* integer value or pv offset */
213 double xnv_nv; /* numeric value, if any */
214 MAGIC* xmg_magic; /* linked list of magicalness */
215 HV* xmg_stash; /* class package */
217 I32 xbm_useful; /* is this constant pattern being useful? */
218 U16 xbm_previous; /* how many characters in string before rare? */
219 U8 xbm_rare; /* rarest character in string */
223 char * xpv_pv; /* pointer to malloced string */
224 STRLEN xpv_cur; /* length of xpv_pv as a C string */
225 STRLEN xpv_len; /* allocated size */
226 IV xiv_iv; /* integer value or pv offset */
227 double xnv_nv; /* numeric value, if any */
228 MAGIC* xmg_magic; /* linked list of magicalness */
229 HV* xmg_stash; /* class package */
234 void (*xcv_xsub)_((CV*));
238 long xcv_depth; /* >= 2 indicates recursive call */
245 char * xpv_pv; /* pointer to malloced string */
246 STRLEN xpv_cur; /* length of xpv_pv as a C string */
247 STRLEN xpv_len; /* allocated size */
248 IV xiv_iv; /* integer value or pv offset */
249 double xnv_nv; /* numeric value, if any */
250 MAGIC* xmg_magic; /* linked list of magicalness */
251 HV* xmg_stash; /* class package */
253 FILE * xio_ifp; /* ifp and ofp are normally the same */
254 FILE * xio_ofp; /* but sockets need separate streams */
255 DIR * xio_dirp; /* for opendir, readdir, etc */
256 long xio_lines; /* $. */
257 long xio_page; /* $% */
258 long xio_page_len; /* $= */
259 long xio_lines_left; /* $- */
260 char * xio_top_name; /* $^ */
261 GV * xio_top_gv; /* $^ */
262 char * xio_fmt_name; /* $~ */
263 GV * xio_fmt_gv; /* $~ */
264 char * xio_bottom_name;/* $^B */
265 GV * xio_bottom_gv; /* $^B */
266 short xio_subprocess; /* -| or |- */
271 #define IOf_ARGV 1 /* this fp iterates over ARGV */
272 #define IOf_START 2 /* check for null ARGV and substitute '-' */
273 #define IOf_FLUSH 4 /* this fp wants a flush after write op */
274 #define IOf_DIDTOP 8 /* just did top of form */
276 /* The following macros define implementation-independent predicates on SVs. */
278 #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
279 #define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
280 #define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
283 #define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
286 #define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
289 #define SvOK_off(sv) (SvFLAGS(sv) &= ~SVf_OK, SvOOK_off(sv))
290 #endif /* OVERLOAD */
292 #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
293 #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
294 #define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
295 #define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
296 #define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
297 #define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
298 #define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
300 #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
301 #define SvIOK_on(sv) (SvOOK_off(sv), \
302 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
303 #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
304 #define SvIOK_only(sv) (SvOK_off(sv), \
305 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
307 #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
308 #define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
309 #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
310 #define SvNOK_only(sv) (SvOK_off(sv), \
311 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
313 #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
314 #define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
315 #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
316 #define SvPOK_only(sv) (SvOK_off(sv), \
317 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
319 #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
320 #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
321 #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
323 #define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
324 #define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
325 #define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
327 #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
328 #define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
331 #define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
333 #define SvROK_off(sv) (SvFLAGS(sv) &= ~SVf_ROK)
334 #endif /* OVERLOAD */
336 #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
337 #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
338 #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
340 #define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
341 #define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
342 #define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
344 #define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
345 #define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
346 #define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
348 #define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
349 #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
350 #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
353 #define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
354 #define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
355 #define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
358 #define Gv_AMG(stash) \
359 (HV_AMAGICmb(stash) && \
360 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
362 #define Gv_AMG(stash) (amagic_generation && Gv_AMupdate(stash))
363 #endif /* OVERLOAD */
365 #define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
367 #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
369 #define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
370 #define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
371 #define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
373 #define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
374 #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
376 #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
377 #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
378 #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
380 #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
381 #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
382 #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
384 #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
385 #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
386 #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
388 #define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
389 #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
390 #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
392 #define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
393 #define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
394 #define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
396 #define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
397 #define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
398 #define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
400 #define SvCASEFOLD(sv) (SvFLAGS(sv) & SVpbm_CASEFOLD)
401 #define SvCASEFOLD_on(sv) (SvFLAGS(sv) |= SVpbm_CASEFOLD)
402 #define SvCASEFOLD_off(sv) (SvFLAGS(sv) &= ~SVpbm_CASEFOLD)
404 #define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
405 #define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
406 #define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
408 #define SvMULTI(sv) (SvFLAGS(sv) & SVpgv_MULTI)
409 #define SvMULTI_on(sv) (SvFLAGS(sv) |= SVpgv_MULTI)
410 #define SvMULTI_off(sv) (SvFLAGS(sv) &= ~SVpgv_MULTI)
412 #define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
413 #define SvRVx(sv) SvRV(sv)
415 #define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
416 #define SvIVXx(sv) SvIVX(sv)
417 #define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
418 #define SvNVXx(sv) SvNVX(sv)
419 #define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
420 #define SvPVXx(sv) SvPVX(sv)
421 #define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
422 #define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
423 #define SvLENx(sv) SvLEN(sv)
424 #define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
425 #define SvENDx(sv) ((Sv = (sv)), SvEND(Sv))
426 #define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
427 #define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
429 #define SvIV_set(sv, val) \
430 do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
431 (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0)
432 #define SvNV_set(sv, val) \
433 do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
434 (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0)
435 #define SvPV_set(sv, val) \
436 do { assert(SvTYPE(sv) >= SVt_PV); \
437 (((XPV*) SvANY(sv))->xpv_pv = val); } while (0)
438 #define SvCUR_set(sv, val) \
439 do { assert(SvTYPE(sv) >= SVt_PV); \
440 (((XPV*) SvANY(sv))->xpv_cur = val); } while (0)
441 #define SvLEN_set(sv, val) \
442 do { assert(SvTYPE(sv) >= SVt_PV); \
443 (((XPV*) SvANY(sv))->xpv_len = val); } while (0)
444 #define SvEND_set(sv, val) \
445 do { assert(SvTYPE(sv) >= SVt_PV); \
446 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } while (0)
448 #define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
449 #define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
450 #define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
452 #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
454 #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
455 #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
456 #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
457 #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
459 #define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
460 #define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
461 #define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
462 #define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
463 #define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
464 #define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
465 #define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
466 #define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
467 #define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
468 #define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
469 #define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
470 #define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
471 #define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
472 #define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
473 #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
474 #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
476 #define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, Nullsv, 't', Nullch, 0)
481 double SvNV _((SV* sv));
482 #define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
483 #define SvPV(sv, lp) sv_pvn(sv, &lp)
484 char *sv_pvn _((SV *, STRLEN *));
485 I32 SvTRUE _((SV *));
487 #define SvIVx(sv) SvIV(sv)
488 #define SvNVx(sv) SvNV(sv)
489 #define SvPVx(sv, lp) sv_pvn(sv, &lp)
490 #define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
491 #define SvTRUEx(sv) SvTRUE(sv)
493 #else /* !CRIPPLED_CC */
495 #define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
497 #define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
499 #define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
501 #define SvPV_force(sv, lp) ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
503 #define SvTRUE(sv) ( \
507 ? ((Xpv = (XPV*)SvANY(sv)) && \
508 (*Xpv->xpv_pv > '0' || \
509 Xpv->xpv_cur > 1 || \
510 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')) \
520 #define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
521 #define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
522 #define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
523 #define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
525 #endif /* CRIPPLED_CC */
527 /* the following macro updates any magic values this sv is associated with */
529 #define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
531 #define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
533 #define SvPEEK(sv) sv_peek(sv)
535 #define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
538 # define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
539 # define Sv_Grow sv_grow
541 /* extra parentheses intentionally NOT placed around "len"! */
542 # define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \
543 ? sv_grow(sv,(unsigned long)len) : SvPVX(sv))
544 # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))