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)
83 #define newRV_noinc(sv) ((Sv = newRV(sv)), \
84 (--SvREFCNT(sv)), (SV*)Sv)
86 #define SVTYPEMASK 0xff
87 #define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
89 #define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
91 #define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
92 #define SVs_PADTMP 0x00000200 /* in use as tmp */
93 #define SVs_PADMY 0x00000400 /* in use a "my" variable */
94 #define SVs_TEMP 0x00000800 /* string is stealable? */
95 #define SVs_OBJECT 0x00001000 /* is "blessed" */
96 #define SVs_GMG 0x00002000 /* has magical get method */
97 #define SVs_SMG 0x00004000 /* has magical set method */
98 #define SVs_RMG 0x00008000 /* has random magical methods */
100 #define SVf_IOK 0x00010000 /* has valid public integer value */
101 #define SVf_NOK 0x00020000 /* has valid public numeric value */
102 #define SVf_POK 0x00040000 /* has valid public pointer value */
103 #define SVf_ROK 0x00080000 /* has a valid reference pointer */
105 #define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
106 #define SVf_OOK 0x00200000 /* has valid offset value */
107 #define SVf_BREAK 0x00400000 /* refcnt is artificially low */
108 #define SVf_READONLY 0x00800000 /* may not be modified */
110 #define SVf_THINKFIRST (SVf_READONLY|SVf_ROK)
112 #define SVp_IOK 0x01000000 /* has valid non-public integer value */
113 #define SVp_NOK 0x02000000 /* has valid non-public numeric value */
114 #define SVp_POK 0x04000000 /* has valid non-public pointer value */
115 #define SVp_SCREAM 0x08000000 /* has been studied? */
117 #define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
118 SVp_IOK|SVp_NOK|SVp_POK)
121 #define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
122 #endif /* OVERLOAD */
126 /* Some private flags. */
128 #define SVpfm_COMPILED 0x80000000
130 #define SVpbm_VALID 0x80000000
131 #define SVpbm_TAIL 0x40000000
133 #define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
134 #define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
137 #define SVpgv_AM 0x40000000
138 /* #define SVpgv_badAM 0x20000000 */
139 #endif /* OVERLOAD */
142 SV * xrv_rv; /* pointer to another SV */
146 char * xpv_pv; /* pointer to malloced string */
147 STRLEN xpv_cur; /* length of xpv_pv as a C string */
148 STRLEN xpv_len; /* allocated size */
152 char * xpv_pv; /* pointer to malloced string */
153 STRLEN xpv_cur; /* length of xpv_pv as a C string */
154 STRLEN xpv_len; /* allocated size */
155 IV xiv_iv; /* integer value or pv offset */
159 char * xpv_pv; /* pointer to malloced string */
160 STRLEN xpv_cur; /* length of xpv_pv as a C string */
161 STRLEN xpv_len; /* allocated size */
162 UV xuv_uv; /* unsigned value or pv offset */
166 char * xpv_pv; /* pointer to malloced string */
167 STRLEN xpv_cur; /* length of xpv_pv as a C string */
168 STRLEN xpv_len; /* allocated size */
169 IV xiv_iv; /* integer value or pv offset */
170 double xnv_nv; /* numeric value, if any */
174 char * xpv_pv; /* pointer to malloced string */
175 STRLEN xpv_cur; /* length of xpv_pv as a C string */
176 STRLEN xpv_len; /* allocated size */
177 IV xiv_iv; /* integer value or pv offset */
178 double xnv_nv; /* numeric value, if any */
179 MAGIC* xmg_magic; /* linked list of magicalness */
180 HV* xmg_stash; /* class package */
184 char * xpv_pv; /* pointer to malloced string */
185 STRLEN xpv_cur; /* length of xpv_pv as a C string */
186 STRLEN xpv_len; /* allocated size */
187 IV xiv_iv; /* integer value or pv offset */
188 double xnv_nv; /* numeric value, if any */
189 MAGIC* xmg_magic; /* linked list of magicalness */
190 HV* xmg_stash; /* class package */
199 char * xpv_pv; /* pointer to malloced string */
200 STRLEN xpv_cur; /* length of xpv_pv as a C string */
201 STRLEN xpv_len; /* allocated size */
202 IV xiv_iv; /* integer value or pv offset */
203 double xnv_nv; /* numeric value, if any */
204 MAGIC* xmg_magic; /* linked list of magicalness */
205 HV* xmg_stash; /* class package */
215 char * xpv_pv; /* pointer to malloced string */
216 STRLEN xpv_cur; /* length of xpv_pv as a C string */
217 STRLEN xpv_len; /* allocated size */
218 IV xiv_iv; /* integer value or pv offset */
219 double xnv_nv; /* numeric value, if any */
220 MAGIC* xmg_magic; /* linked list of magicalness */
221 HV* xmg_stash; /* class package */
223 I32 xbm_useful; /* is this constant pattern being useful? */
224 U16 xbm_previous; /* how many characters in string before rare? */
225 U8 xbm_rare; /* rarest character in string */
229 char * xpv_pv; /* pointer to malloced string */
230 STRLEN xpv_cur; /* length of xpv_pv as a C string */
231 STRLEN xpv_len; /* allocated size */
232 IV xiv_iv; /* integer value or pv offset */
233 double xnv_nv; /* numeric value, if any */
234 MAGIC* xmg_magic; /* linked list of magicalness */
235 HV* xmg_stash; /* class package */
240 void (*xcv_xsub)_((CV*));
244 long xcv_depth; /* >= 2 indicates recursive call */
251 char * xpv_pv; /* pointer to malloced string */
252 STRLEN xpv_cur; /* length of xpv_pv as a C string */
253 STRLEN xpv_len; /* allocated size */
254 IV xiv_iv; /* integer value or pv offset */
255 double xnv_nv; /* numeric value, if any */
256 MAGIC* xmg_magic; /* linked list of magicalness */
257 HV* xmg_stash; /* class package */
259 PerlIO * xio_ifp; /* ifp and ofp are normally the same */
260 PerlIO * xio_ofp; /* but sockets need separate streams */
261 DIR * xio_dirp; /* for opendir, readdir, etc */
262 long xio_lines; /* $. */
263 long xio_page; /* $% */
264 long xio_page_len; /* $= */
265 long xio_lines_left; /* $- */
266 char * xio_top_name; /* $^ */
267 GV * xio_top_gv; /* $^ */
268 char * xio_fmt_name; /* $~ */
269 GV * xio_fmt_gv; /* $~ */
270 char * xio_bottom_name;/* $^B */
271 GV * xio_bottom_gv; /* $^B */
272 short xio_subprocess; /* -| or |- */
277 #define IOf_ARGV 1 /* this fp iterates over ARGV */
278 #define IOf_START 2 /* check for null ARGV and substitute '-' */
279 #define IOf_FLUSH 4 /* this fp wants a flush after write op */
280 #define IOf_DIDTOP 8 /* just did top of form */
281 #define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */
283 /* The following macros define implementation-independent predicates on SVs. */
285 #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
286 #define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
287 #define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
290 #define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
293 #define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
296 #define SvOK_off(sv) (SvFLAGS(sv) &= ~SVf_OK, SvOOK_off(sv))
297 #endif /* OVERLOAD */
299 #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
300 #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
301 #define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
302 #define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
303 #define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
304 #define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
305 #define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
307 #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
308 #define SvIOK_on(sv) (SvOOK_off(sv), \
309 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
310 #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
311 #define SvIOK_only(sv) (SvOOK_off(sv), SvOK_off(sv), \
312 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
314 #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
315 #define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
316 #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
317 #define SvNOK_only(sv) (SvOK_off(sv), \
318 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
320 #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
321 #define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
322 #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
325 #define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
326 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
328 #define SvPOK_only(sv) (SvFLAGS(sv) &= ~SVf_OK, \
329 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
330 #endif /* OVERLOAD */
332 #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
333 #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
334 #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
336 #define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
337 #define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
338 #define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
340 #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
341 #define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
344 #define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
346 #define SvROK_off(sv) (SvFLAGS(sv) &= ~SVf_ROK)
347 #endif /* OVERLOAD */
349 #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
350 #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
351 #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
353 #define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
354 #define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
355 #define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
357 #define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
358 #define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
359 #define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
361 #define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
362 #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
363 #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
366 #define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
367 #define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
368 #define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
371 #define Gv_AMG(stash) \
372 (HV_AMAGICmb(stash) && \
373 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
375 #define Gv_AMG(stash) (amagic_generation && Gv_AMupdate(stash))
376 #endif /* OVERLOAD */
378 #define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
380 #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
382 #define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
383 #define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
384 #define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
386 #define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
387 #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
389 #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
390 #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
391 #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
393 #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
394 #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
395 #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
397 #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
398 #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
399 #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
401 #define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
402 #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
403 #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
405 #define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
406 #define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
407 #define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
409 #define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
410 #define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
411 #define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
413 #define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
414 #define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
415 #define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
417 #define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
418 #define SvRVx(sv) SvRV(sv)
420 #define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
421 #define SvIVXx(sv) SvIVX(sv)
422 #define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
423 #define SvUVXx(sv) SvUVX(sv)
424 #define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
425 #define SvNVXx(sv) SvNVX(sv)
426 #define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
427 #define SvPVXx(sv) SvPVX(sv)
428 #define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
429 #define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
430 #define SvLENx(sv) SvLEN(sv)
431 #define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
432 #define SvENDx(sv) ((Sv = (sv)), SvEND(Sv))
433 #define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
434 #define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
436 #define SvIV_set(sv, val) \
437 STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
438 (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
439 #define SvNV_set(sv, val) \
440 STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
441 (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
442 #define SvPV_set(sv, val) \
443 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
444 (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
445 #define SvCUR_set(sv, val) \
446 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
447 (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
448 #define SvLEN_set(sv, val) \
449 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
450 (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
451 #define SvEND_set(sv, val) \
452 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
453 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
455 #define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
456 #define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
457 #define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
459 #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
461 #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
462 #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
463 #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
464 #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
466 #define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
467 #define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
468 #define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
469 #define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
470 #define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
471 #define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
472 #define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
473 #define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
474 #define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
475 #define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
476 #define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
477 #define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
478 #define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
479 #define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
480 #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
481 #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
483 #define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
484 #define SvTAINTED_on(sv) STMT_START{ if(tainting){sv_taint(sv);} }STMT_END
485 #define SvTAINTED_off(sv) STMT_START{ if(tainting){sv_untaint(sv);} }STMT_END
487 #define SvTAINT(sv) STMT_START{ if(tainted){SvTAINTED_on(sv);} }STMT_END
493 double SvNV _((SV* sv));
494 #define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
495 #define SvPV(sv, lp) sv_pvn(sv, &lp)
496 char *sv_pvn _((SV *, STRLEN *));
497 I32 SvTRUE _((SV *));
499 #define SvIVx(sv) SvIV(sv)
500 #define SvUVx(sv) SvUV(sv)
501 #define SvNVx(sv) SvNV(sv)
502 #define SvPVx(sv, lp) sv_pvn(sv, &lp)
503 #define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
504 #define SvTRUEx(sv) SvTRUE(sv)
506 #else /* !CRIPPLED_CC */
509 #define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
512 #define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
515 #define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
518 #define SvPV(sv, lp) \
519 (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
522 #define SvPV_force(sv, lp) \
523 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
524 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
527 #define SvTRUE(sv) ( \
531 ? ((Xpv = (XPV*)SvANY(sv)) && \
532 (*Xpv->xpv_pv > '0' || \
533 Xpv->xpv_cur > 1 || \
534 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')) \
544 #define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
545 #define SvUVx(sv) ((Sv = (sv)), SvUV(Sv))
546 #define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
547 #define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
548 #define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
550 #endif /* CRIPPLED_CC */
552 /* the following macro updates any magic values this sv is associated with */
554 #define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
556 #define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
558 #define SvPEEK(sv) sv_peek(sv)
560 #define SvIMMORTAL(sv) ((sv)==&sv_undef || (sv)==&sv_yes || (sv)==&sv_no)
562 #define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
565 # define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
566 # define Sv_Grow sv_grow
568 /* extra parentheses intentionally NOT placed around "len"! */
569 # define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \
570 ? sv_grow(sv,(unsigned long)len) : SvPVX(sv))
571 # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))