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1 | /* $RCSfile: sv.h,v $$Revision: 4.1 $$Date: 92/08/07 18:26:57 $ |
2 | * |
3 | * Copyright (c) 1991, Larry Wall |
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 | * |
8 | * $Log: sv.h,v $ |
9 | * Revision 4.1 92/08/07 18:26:57 lwall |
10 | * |
11 | * Revision 4.0.1.4 92/06/08 15:41:45 lwall |
12 | * patch20: fixed confusion between a *var's real name and its effective name |
13 | * patch20: removed implicit int declarations on functions |
14 | * |
15 | * Revision 4.0.1.3 91/11/05 18:41:47 lwall |
16 | * patch11: random cleanup |
17 | * patch11: solitary subroutine references no longer trigger typo warnings |
18 | * |
19 | * Revision 4.0.1.2 91/06/07 11:58:33 lwall |
20 | * patch4: new copyright notice |
21 | * |
22 | * Revision 4.0.1.1 91/04/12 09:16:12 lwall |
23 | * patch1: you may now use "die" and "caller" in a signal handler |
24 | * |
25 | * Revision 4.0 91/03/20 01:40:04 lwall |
26 | * 4.0 baseline. |
27 | * |
28 | */ |
29 | |
30 | typedef enum { |
31 | SVt_NULL, |
32 | SVt_REF, |
33 | SVt_IV, |
34 | SVt_NV, |
35 | SVt_PV, |
36 | SVt_PVIV, |
37 | SVt_PVNV, |
38 | SVt_PVMG, |
39 | SVt_PVLV, |
40 | SVt_PVAV, |
41 | SVt_PVHV, |
42 | SVt_PVCV, |
43 | SVt_PVGV, |
44 | SVt_PVBM, |
45 | SVt_PVFM, |
46 | } svtype; |
47 | |
48 | /* Compensate for ANSI C misdesign... */ |
49 | #ifdef DEBUGGING |
50 | #define SVTYPE svtype |
51 | #else |
52 | #define SVTYPE U8 |
53 | #endif |
54 | |
55 | /* Using C's structural equivalence to help emulate C++ inheritance here... */ |
56 | |
57 | struct sv { |
58 | ANY sv_any; /* pointer to something */ |
59 | U32 sv_refcnt; /* how many references to us */ |
60 | SVTYPE sv_type; /* what sort of thing pointer points to */ |
61 | U8 sv_flags; /* extra flags, some depending on type */ |
62 | U8 sv_storage; /* storage class */ |
63 | U8 sv_private; /* extra value, depending on type */ |
64 | }; |
65 | |
66 | struct gv { |
67 | ANY sv_any; /* pointer to something */ |
68 | U32 sv_refcnt; /* how many references to us */ |
69 | SVTYPE sv_type; /* what sort of thing pointer points to */ |
70 | U8 sv_flags; /* extra flags, some depending on type */ |
71 | U8 sv_storage; /* storage class */ |
72 | U8 sv_private; /* extra value, depending on type */ |
73 | }; |
74 | |
75 | struct cv { |
76 | ANY sv_any; /* pointer to something */ |
77 | U32 sv_refcnt; /* how many references to us */ |
78 | SVTYPE sv_type; /* what sort of thing pointer points to */ |
79 | U8 sv_flags; /* extra flags, some depending on type */ |
80 | U8 sv_storage; /* storage class */ |
81 | U8 sv_private; /* extra value, depending on type */ |
82 | }; |
83 | |
84 | struct av { |
85 | ANY sv_any; /* pointer to something */ |
86 | U32 sv_refcnt; /* how many references to us */ |
87 | SVTYPE sv_type; /* what sort of thing pointer points to */ |
88 | U8 sv_flags; /* extra flags, some depending on type */ |
89 | U8 sv_storage; /* storage class */ |
90 | U8 sv_private; /* extra value, depending on type */ |
91 | }; |
92 | |
93 | struct hv { |
94 | ANY sv_any; /* pointer to something */ |
95 | U32 sv_refcnt; /* how many references to us */ |
96 | SVTYPE sv_type; /* what sort of thing pointer points to */ |
97 | U8 sv_flags; /* extra flags, some depending on type */ |
98 | U8 sv_storage; /* storage class */ |
99 | U8 sv_private; /* extra value, depending on type */ |
100 | }; |
101 | |
102 | #define SvANY(sv) (sv)->sv_any.any_ptr |
103 | #define SvANYI32(sv) (sv)->sv_any.any_i32 |
104 | #define SvTYPE(sv) (sv)->sv_type |
105 | #define SvREFCNT(sv) (sv)->sv_refcnt |
106 | #define SvFLAGS(sv) (sv)->sv_flags |
107 | #define SvSTORAGE(sv) (sv)->sv_storage |
108 | #define SvPRIVATE(sv) (sv)->sv_private |
109 | |
110 | #define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt)) |
111 | |
112 | #define SVf_IOK 1 /* has valid integer value */ |
113 | #define SVf_NOK 2 /* has valid numeric value */ |
114 | #define SVf_POK 4 /* has valid pointer value */ |
115 | #define SVf_OOK 8 /* has valid offset value */ |
116 | #define SVf_MAGICAL 16 /* has special methods */ |
117 | #define SVf_SCREAM 32 /* eventually in sv_private? */ |
118 | #define SVf_TEMP 64 /* eventually in sv_private? */ |
119 | #define SVf_READONLY 128 /* may not be modified */ |
120 | |
121 | #define SVp_TAINTED 128 /* is a security risk */ |
122 | |
123 | #define SVpfm_COMPILED 1 |
124 | |
125 | #define SVpbm_TAIL 1 |
126 | #define SVpbm_CASEFOLD 2 |
127 | #define SVpbm_VALID 4 |
128 | |
129 | #define SVpgv_MULTI 1 |
130 | |
131 | struct xpv { |
132 | char * xpv_pv; /* pointer to malloced string */ |
133 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
134 | STRLEN xpv_len; /* allocated size */ |
135 | }; |
136 | |
137 | struct xpviv { |
138 | char * xpv_pv; /* pointer to malloced string */ |
139 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
140 | STRLEN xpv_len; /* allocated size */ |
141 | I32 xiv_iv; /* integer value or pv offset */ |
142 | }; |
143 | |
144 | struct xpvnv { |
145 | char * xpv_pv; /* pointer to malloced string */ |
146 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
147 | STRLEN xpv_len; /* allocated size */ |
148 | I32 xiv_iv; /* integer value or pv offset */ |
149 | double xnv_nv; /* numeric value, if any */ |
150 | }; |
151 | |
152 | struct xpvmg { |
153 | char * xpv_pv; /* pointer to malloced string */ |
154 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
155 | STRLEN xpv_len; /* allocated size */ |
156 | I32 xiv_iv; /* integer value or pv offset */ |
157 | double xnv_nv; /* numeric value, if any */ |
158 | MAGIC* xmg_magic; /* linked list of magicalness */ |
159 | HV* xmg_stash; /* class package */ |
160 | }; |
161 | |
162 | struct xpvlv { |
163 | char * xpv_pv; /* pointer to malloced string */ |
164 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
165 | STRLEN xpv_len; /* allocated size */ |
166 | I32 xiv_iv; /* integer value or pv offset */ |
167 | double xnv_nv; /* numeric value, if any */ |
168 | MAGIC* xmg_magic; /* linked list of magicalness */ |
169 | HV* xmg_stash; /* class package */ |
170 | STRLEN xlv_targoff; |
171 | STRLEN xlv_targlen; |
172 | SV* xlv_targ; |
173 | char xlv_type; |
174 | }; |
175 | |
176 | struct xpvgv { |
177 | char * xpv_pv; /* pointer to malloced string */ |
178 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
179 | STRLEN xpv_len; /* allocated size */ |
180 | I32 xiv_iv; /* integer value or pv offset */ |
181 | double xnv_nv; /* numeric value, if any */ |
182 | MAGIC* xmg_magic; /* linked list of magicalness */ |
183 | HV* xmg_stash; /* class package */ |
184 | GP* xgv_gp; |
185 | char* xgv_name; |
186 | STRLEN xgv_namelen; |
187 | HV* xgv_stash; |
188 | }; |
189 | |
190 | struct xpvbm { |
191 | char * xpv_pv; /* pointer to malloced string */ |
192 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
193 | STRLEN xpv_len; /* allocated size */ |
194 | I32 xiv_iv; /* integer value or pv offset */ |
195 | double xnv_nv; /* numeric value, if any */ |
196 | MAGIC* xmg_magic; /* linked list of magicalness */ |
197 | HV* xmg_stash; /* class package */ |
198 | I32 xbm_useful; /* is this constant pattern being useful? */ |
199 | U16 xbm_previous; /* how many characters in string before rare? */ |
200 | U8 xbm_rare; /* rarest character in string */ |
201 | }; |
202 | |
203 | struct xpvfm { |
204 | char * xpv_pv; /* pointer to malloced string */ |
205 | STRLEN xpv_cur; /* length of xpv_pv as a C string */ |
206 | STRLEN xpv_len; /* allocated size */ |
207 | I32 xiv_iv; /* integer value or pv offset */ |
208 | double xnv_nv; /* numeric value, if any */ |
209 | MAGIC* xmg_magic; /* linked list of magicalness */ |
210 | HV* xmg_stash; /* class package */ |
211 | HV * xcv_stash; |
212 | OP * xcv_start; |
213 | OP * xcv_root; |
214 | I32 (*xcv_usersub)(); |
215 | I32 xcv_userindex; |
216 | GV * xcv_filegv; |
217 | long xcv_depth; /* >= 2 indicates recursive call */ |
218 | AV * xcv_padlist; |
219 | bool xcv_deleted; |
220 | I32 xfm_lines; |
221 | }; |
222 | |
223 | /* XXX need to write custom routines for some of these */ |
224 | #define new_SV() (void*)malloc(sizeof(SV)) |
225 | #define del_SV(p) free((char*)p) |
226 | |
227 | #define new_XIV() (void*)malloc(sizeof(XPVIV)) |
228 | #define del_XIV(p) free((char*)p) |
229 | |
230 | #define new_XNV() (void*)malloc(sizeof(XPVNV)) |
231 | #define del_XNV(p) free((char*)p) |
232 | |
233 | #define new_XPV() (void*)malloc(sizeof(XPV)) |
234 | #define del_XPV(p) free((char*)p) |
235 | |
236 | #define new_XPVIV() (void*)malloc(sizeof(XPVIV)) |
237 | #define del_XPVIV(p) free((char*)p) |
238 | |
239 | #define new_XPVNV() (void*)malloc(sizeof(XPVNV)) |
240 | #define del_XPVNV(p) free((char*)p) |
241 | |
242 | #define new_XPVMG() (void*)malloc(sizeof(XPVMG)) |
243 | #define del_XPVMG(p) free((char*)p) |
244 | |
245 | #define new_XPVLV() (void*)malloc(sizeof(XPVLV)) |
246 | #define del_XPVLV(p) free((char*)p) |
247 | |
248 | #define new_XPVAV() (void*)malloc(sizeof(XPVAV)) |
249 | #define del_XPVAV(p) free((char*)p) |
250 | |
251 | #define new_XPVHV() (void*)malloc(sizeof(XPVHV)) |
252 | #define del_XPVHV(p) free((char*)p) |
253 | |
254 | #define new_XPVCV() (void*)malloc(sizeof(XPVCV)) |
255 | #define del_XPVCV(p) free((char*)p) |
256 | |
257 | #define new_XPVGV() (void*)malloc(sizeof(XPVGV)) |
258 | #define del_XPVGV(p) free((char*)p) |
259 | |
260 | #define new_XPVBM() (void*)malloc(sizeof(XPVBM)) |
261 | #define del_XPVBM(p) free((char*)p) |
262 | |
263 | #define new_XPVFM() (void*)malloc(sizeof(XPVFM)) |
264 | #define del_XPVFM(p) free((char*)p) |
265 | |
266 | #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK)) |
267 | |
268 | #define SvOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) |
269 | #define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK), \ |
270 | SvOOK_off(sv)) |
271 | |
272 | #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK) |
273 | #define SvIOK_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVf_IOK) |
274 | #define SvIOK_off(sv) (SvFLAGS(sv) &= ~SVf_IOK) |
275 | #define SvIOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_IOK) |
276 | |
277 | #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK) |
278 | #define SvNOK_on(sv) (SvFLAGS(sv) |= SVf_NOK) |
279 | #define SvNOK_off(sv) (SvFLAGS(sv) &= ~SVf_NOK) |
280 | #define SvNOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_NOK) |
281 | |
282 | #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK) |
283 | #define SvPOK_on(sv) (SvFLAGS(sv) |= SVf_POK) |
284 | #define SvPOK_off(sv) (SvFLAGS(sv) &= ~SVf_POK) |
285 | #define SvPOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_POK) |
286 | |
287 | #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK) |
288 | #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK) |
289 | #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv)) |
290 | #define SvOOK_only(sv) (SvOK_off(sv), SvFLAGS(sv) |= SVf_OOK) |
291 | |
292 | #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY) |
293 | #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY) |
294 | #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY) |
295 | |
296 | #define SvMAGICAL(sv) (SvFLAGS(sv) & SVf_MAGICAL) |
297 | #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= SVf_MAGICAL) |
298 | #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVf_MAGICAL) |
299 | |
300 | #define SvSCREAM(sv) (SvFLAGS(sv) & SVf_SCREAM) |
301 | #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVf_SCREAM) |
302 | #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVf_SCREAM) |
303 | |
304 | #define SvTEMP(sv) (SvFLAGS(sv) & SVf_TEMP) |
305 | #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVf_TEMP) |
306 | #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVf_TEMP) |
307 | |
308 | #define SvTAINTED(sv) (SvPRIVATE(sv) & SVp_TAINTED) |
309 | #define SvTAINTED_on(sv) (SvPRIVATE(sv) |= SVp_TAINTED) |
310 | #define SvTAINTED_off(sv) (SvPRIVATE(sv) &= ~SVp_TAINTED) |
311 | |
312 | #define SvCOMPILED(sv) (SvPRIVATE(sv) & SVpfm_COMPILED) |
313 | #define SvCOMPILED_on(sv) (SvPRIVATE(sv) |= SVpfm_COMPILED) |
314 | #define SvCOMPILED_off(sv) (SvPRIVATE(sv) &= ~SVpfm_COMPILED) |
315 | |
316 | #define SvTAIL(sv) (SvPRIVATE(sv) & SVpbm_TAIL) |
317 | #define SvTAIL_on(sv) (SvPRIVATE(sv) |= SVpbm_TAIL) |
318 | #define SvTAIL_off(sv) (SvPRIVATE(sv) &= ~SVpbm_TAIL) |
319 | |
320 | #define SvCASEFOLD(sv) (SvPRIVATE(sv) & SVpbm_CASEFOLD) |
321 | #define SvCASEFOLD_on(sv) (SvPRIVATE(sv) |= SVpbm_CASEFOLD) |
322 | #define SvCASEFOLD_off(sv) (SvPRIVATE(sv) &= ~SVpbm_CASEFOLD) |
323 | |
324 | #define SvVALID(sv) (SvPRIVATE(sv) & SVpbm_VALID) |
325 | #define SvVALID_on(sv) (SvPRIVATE(sv) |= SVpbm_VALID) |
326 | #define SvVALID_off(sv) (SvPRIVATE(sv) &= ~SVpbm_VALID) |
327 | |
328 | #define SvMULTI(sv) (SvPRIVATE(sv) & SVpgv_MULTI) |
329 | #define SvMULTI_on(sv) (SvPRIVATE(sv) |= SVpgv_MULTI) |
330 | #define SvMULTI_off(sv) (SvPRIVATE(sv) &= ~SVpgv_MULTI) |
331 | |
332 | #define SvIV(sv) ((XPVIV*) SvANY(sv))->xiv_iv |
333 | #define SvIVx(sv) SvIV(sv) |
334 | #define SvNV(sv) ((XPVNV*)SvANY(sv))->xnv_nv |
335 | #define SvNVx(sv) SvNV(sv) |
336 | #define SvPV(sv) ((XPV*) SvANY(sv))->xpv_pv |
337 | #define SvPVx(sv) SvPV(sv) |
338 | #define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur |
339 | #define SvCURx(sv) SvCUR(sv) |
340 | #define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len |
341 | #define SvLENx(sv) SvLEN(sv) |
342 | #define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur) |
343 | #define SvENDx(sv) ((Sv = sv), SvEND(Sv)) |
344 | #define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic |
345 | #define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash |
346 | |
347 | #define SvIV_set(sv, val) \ |
348 | do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \ |
349 | (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0) |
350 | #define SvNV_set(sv, val) \ |
351 | do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \ |
352 | (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0) |
353 | #define SvPV_set(sv, val) \ |
354 | do { assert(SvTYPE(sv) >= SVt_PV); \ |
355 | (((XPV*) SvANY(sv))->xpv_pv = val); } while (0) |
356 | #define SvCUR_set(sv, val) \ |
357 | do { assert(SvTYPE(sv) >= SVt_PV); \ |
358 | (((XPV*) SvANY(sv))->xpv_cur = val); } while (0) |
359 | #define SvLEN_set(sv, val) \ |
360 | do { assert(SvTYPE(sv) >= SVt_PV); \ |
361 | (((XPV*) SvANY(sv))->xpv_len = val); } while (0) |
362 | #define SvEND_set(sv, val) \ |
363 | do { assert(SvTYPE(sv) >= SVt_PV); \ |
364 | (((XPV*) SvANY(sv))->xpv_cur = val - SvPV(sv)); } while (0) |
365 | |
366 | #define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare |
367 | #define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful |
368 | #define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous |
369 | |
370 | #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines |
371 | |
372 | #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type |
373 | #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ |
374 | #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff |
375 | #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen |
376 | |
377 | #ifdef TAINT |
378 | #define SvTUP(sv) (tainted |= (SvPRIVATE(sv) & SVp_TAINTED)) |
379 | #define SvTUPc(sv) (tainted |= (SvPRIVATE(sv) & SVp_TAINTED)), |
380 | #define SvTDOWN(sv) (SvPRIVATE(sv) |= tainted ? SVp_TAINTED : 0) |
381 | #define SvTDOWNc(sv) (SvPRIVATE(sv) |= tainted ? SVp_TAINTED : 0), |
382 | #else |
383 | #define SvTUP(sv) |
384 | #define SvTUPc(sv) |
385 | #define SvTDOWN(sv) |
386 | #define SvTDOWNc(sv) |
387 | #endif |
388 | |
389 | #ifdef CRIPPLED_CC |
390 | |
391 | double SvIVn(); |
392 | double SvNVn(); |
393 | char *SvPVn(); |
394 | I32 SvTRUE(); |
395 | |
396 | #define SvIVnx(sv) SvIVn(sv) |
397 | #define SvNVnx(sv) SvNVn(sv) |
398 | #define SvPVnx(sv) SvPVn(sv) |
399 | #define SvTRUEx(sv) SvTRUE(sv) |
400 | |
401 | #else /* !CRIPPLED_CC */ |
402 | |
403 | #define SvIVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \ |
404 | SvIOK(sv) ? SvIV(sv) : sv_2iv(sv)) |
405 | |
406 | #define SvNVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \ |
407 | SvNOK(sv) ? SvNV(sv) : sv_2nv(sv)) |
408 | |
409 | #define SvPVn(sv) (SvTUPc(sv) (SvMAGICAL(sv) && mg_get(sv)), \ |
410 | SvPOK(sv) ? SvPV(sv) : sv_2pv(sv)) |
411 | |
412 | #define SvTRUE(sv) ((SvMAGICAL(sv) && mg_get(sv)), \ |
413 | SvPOK(sv) \ |
414 | ? ((Xpv = (XPV*)SvANY(sv)) && \ |
415 | (*Xpv->xpv_pv > '0' || \ |
416 | Xpv->xpv_cur > 1 || \ |
417 | (Xpv->xpv_cur && *Xpv->xpv_pv != '0')) \ |
418 | ? 1 \ |
419 | : 0) \ |
420 | : \ |
421 | SvIOK(sv) \ |
422 | ? SvIV(sv) != 0 \ |
423 | : SvNOK(sv) \ |
424 | ? SvNV(sv) != 0.0 \ |
425 | : 0 ) |
426 | |
427 | #define SvIVnx(sv) ((Sv = sv), SvIVn(Sv)) |
428 | #define SvNVnx(sv) ((Sv = sv), SvNVn(Sv)) |
429 | #define SvPVnx(sv) ((Sv = sv), SvPVn(Sv)) |
430 | #define SvTRUEx(sv) ((Sv = sv), SvTRUE(Sv)) |
431 | |
432 | #endif /* CRIPPLED_CC */ |
433 | |
434 | /* the following macro updates any magic values this sv is associated with */ |
435 | |
436 | #define SvGETMAGIC(x) \ |
437 | SvTUP(x); \ |
438 | if (SvMAGICAL(x)) mg_get(x) |
439 | |
440 | #define SvSETMAGIC(x) \ |
441 | SvTDOWN(x); \ |
442 | if (SvMAGICAL(x)) \ |
443 | mg_set(x) |
444 | |
445 | #define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src) |
446 | |
447 | #define SvPEEK(sv) sv_peek(sv) |
448 | |
449 | #define isGV(sv) (SvTYPE(sv) == SVt_PVGV) |
450 | |
451 | #define GROWSTR(pp,lp,len) if (*(lp) < (len)) pv_grow(pp, lp, (len) * 3 / 2) |
452 | |
453 | #ifndef DOSISH |
454 | # define SvGROW(sv,len) if (SvLEN(sv) < (len)) sv_grow(sv,len) |
455 | # define Sv_Grow sv_grow |
456 | #else |
457 | /* extra parentheses intentionally NOT placed around "len"! */ |
458 | # define SvGROW(sv,len) if (SvLEN(sv) < (unsigned long)len) \ |
459 | sv_grow(sv,(unsigned long)len) |
460 | # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len)) |
461 | #endif /* DOSISH */ |
462 | |