-/* $RCSfile: sv.h,v $$Revision: 4.1 $$Date: 92/08/07 18:26:57 $
+/* sv.h
*
- * Copyright (c) 1991, Larry Wall
+ * Copyright (c) 1991-1994, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
- * $Log: sv.h,v $
- * Revision 4.1 92/08/07 18:26:57 lwall
- *
- * Revision 4.0.1.4 92/06/08 15:41:45 lwall
- * patch20: fixed confusion between a *var's real name and its effective name
- * patch20: removed implicit int declarations on functions
- *
- * Revision 4.0.1.3 91/11/05 18:41:47 lwall
- * patch11: random cleanup
- * patch11: solitary subroutine references no longer trigger typo warnings
- *
- * Revision 4.0.1.2 91/06/07 11:58:33 lwall
- * patch4: new copyright notice
- *
- * Revision 4.0.1.1 91/04/12 09:16:12 lwall
- * patch1: you may now use "die" and "caller" in a signal handler
- *
- * Revision 4.0 91/03/20 01:40:04 lwall
- * 4.0 baseline.
- *
*/
+#ifdef sv_flags
+#undef sv_flags /* Convex has this in <signal.h> for sigvec() */
+#endif
+
typedef enum {
- SVt_NULL,
- SVt_IV,
- SVt_NV,
- SVt_RV,
- SVt_PV,
- SVt_PVIV,
- SVt_PVNV,
- SVt_PVMG,
- SVt_PVBM,
- SVt_PVLV,
- SVt_PVAV,
- SVt_PVHV,
- SVt_PVCV,
- SVt_PVGV,
- SVt_PVFM,
- SVt_PVIO,
+ SVt_NULL, /* 0 */
+ SVt_IV, /* 1 */
+ SVt_NV, /* 2 */
+ SVt_RV, /* 3 */
+ SVt_PV, /* 4 */
+ SVt_PVIV, /* 5 */
+ SVt_PVNV, /* 6 */
+ SVt_PVMG, /* 7 */
+ SVt_PVBM, /* 8 */
+ SVt_PVLV, /* 9 */
+ SVt_PVAV, /* 10 */
+ SVt_PVHV, /* 11 */
+ SVt_PVCV, /* 12 */
+ SVt_PVGV, /* 13 */
+ SVt_PVFM, /* 14 */
+ SVt_PVIO /* 15 */
} svtype;
/* Using C's structural equivalence to help emulate C++ inheritance here... */
};
struct cv {
- XPVGV* sv_any; /* pointer to something */
+ XPVCV* sv_any; /* pointer to something */
U32 sv_refcnt; /* how many references to us */
U32 sv_flags; /* what we are */
};
#define SVf_NOK 0x00020000 /* has valid public numeric value */
#define SVf_POK 0x00040000 /* has valid public pointer value */
#define SVf_ROK 0x00080000 /* has a valid reference pointer */
-#define SVf_OK 0x00100000 /* has defined value */
+
+#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
#define SVf_OOK 0x00200000 /* has valid offset value */
#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
#define SVf_READONLY 0x00800000 /* may not be modified */
+#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK)
+
#define SVp_IOK 0x01000000 /* has valid non-public integer value */
#define SVp_NOK 0x02000000 /* has valid non-public numeric value */
#define SVp_POK 0x04000000 /* has valid non-public pointer value */
#define SVp_SCREAM 0x08000000 /* has been studied? */
+#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
+ SVp_IOK|SVp_NOK|SVp_POK)
+
+#ifdef OVERLOAD
+#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
+#endif /* OVERLOAD */
+
#define PRIVSHIFT 8
/* Some private flags. */
#define SVpfm_COMPILED 0x80000000
#define SVpbm_VALID 0x80000000
-#define SVpbm_CASEFOLD 0x40000000
-#define SVpbm_TAIL 0x20000000
+#define SVpbm_TAIL 0x40000000
-#define SVpgv_MULTI 0x80000000
+#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
+#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
struct xrv {
SV * xrv_rv; /* pointer to another SV */
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
+};
+
+struct xpvuv {
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ UV xuv_uv; /* unsigned value or pv offset */
};
struct xpvnv {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
};
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
char* xgv_name;
STRLEN xgv_namelen;
HV* xgv_stash;
+ U8 xgv_flags;
};
struct xpvbm {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
HV * xcv_stash;
OP * xcv_start;
OP * xcv_root;
- I32 (*xcv_usersub)();
- I32 xcv_userindex;
+ void (*xcv_xsub)_((CV*));
+ ANY xcv_xsubany;
+ GV * xcv_gv;
GV * xcv_filegv;
long xcv_depth; /* >= 2 indicates recursive call */
AV * xcv_padlist;
- bool xcv_deleted;
+ CV * xcv_outside;
I32 xfm_lines;
};
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
STRLEN xpv_len; /* allocated size */
- I32 xiv_iv; /* integer value or pv offset */
+ IV xiv_iv; /* integer value or pv offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
- FILE * xio_ifp; /* ifp and ofp are normally the same */
- FILE * xio_ofp; /* but sockets need separate streams */
+ PerlIO * xio_ifp; /* ifp and ofp are normally the same */
+ PerlIO * xio_ofp; /* but sockets need separate streams */
DIR * xio_dirp; /* for opendir, readdir, etc */
long xio_lines; /* $. */
long xio_page; /* $% */
#define IOf_ARGV 1 /* this fp iterates over ARGV */
#define IOf_START 2 /* check for null ARGV and substitute '-' */
#define IOf_FLUSH 4 /* this fp wants a flush after write op */
+#define IOf_DIDTOP 8 /* just did top of form */
+#define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */
/* The following macros define implementation-independent predicates on SVs. */
#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
+#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
+#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
+ SVp_IOK|SVp_NOK))
#define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
-#define SvOK_on(sv) (SvFLAGS(sv) |= SVf_OK)
-#define SvOK_off(sv) (SvFLAGS(sv) &= \
- ~(SVf_IOK|SVf_NOK|SVf_POK|SVf_OK| \
- SVp_IOK|SVp_NOK|SVp_POK|SVf_ROK),\
- SvOOK_off(sv))
+
+#ifdef OVERLOAD
+#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
+ SvOOK_off(sv))
+#else
+#define SvOK_off(sv) (SvFLAGS(sv) &= ~SVf_OK, SvOOK_off(sv))
+#endif /* OVERLOAD */
#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
#define SvIOK_on(sv) (SvOOK_off(sv), \
- SvFLAGS(sv) |= (SVf_IOK|SVp_IOK|SVf_OK))
+ SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
-#define SvIOK_only(sv) (SvOK_off(sv), \
- SvFLAGS(sv) |= (SVf_IOK|SVp_IOK|SVf_OK))
+#define SvIOK_only(sv) (SvOOK_off(sv), SvOK_off(sv), \
+ SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
-#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK|SVf_OK))
+#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
#define SvNOK_only(sv) (SvOK_off(sv), \
- SvFLAGS(sv) |= (SVf_NOK|SVp_NOK|SVf_OK))
+ SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
-#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK|SVf_OK))
+#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
-#define SvPOK_only(sv) (SvOK_off(sv), \
- SvFLAGS(sv) |= (SVf_POK|SVp_POK|SVf_OK))
+
+#ifdef OVERLOAD
+#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
+ SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#else
+#define SvPOK_only(sv) (SvFLAGS(sv) &= ~SVf_OK, \
+ SvFLAGS(sv) |= (SVf_POK|SVp_POK))
+#endif /* OVERLOAD */
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
#define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
+#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
+#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
+#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
+
#define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
-#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK|SVf_OK)
+#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
+
+#ifdef OVERLOAD
+#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
+#else
#define SvROK_off(sv) (SvFLAGS(sv) &= ~SVf_ROK)
+#endif /* OVERLOAD */
#define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
#define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
#define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
-#define SvTHINKFIRST(sv) (SvFLAGS(sv) & (SVf_ROK|SVf_READONLY))
+#ifdef OVERLOAD
+#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
+#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
+#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
+
+/*
+#define Gv_AMG(stash) \
+ (HV_AMAGICmb(stash) && \
+ ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
+*/
+#define Gv_AMG(stash) (amagic_generation && Gv_AMupdate(stash))
+#endif /* OVERLOAD */
+
+#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
#define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
-#define SvCASEFOLD(sv) (SvFLAGS(sv) & SVpbm_CASEFOLD)
-#define SvCASEFOLD_on(sv) (SvFLAGS(sv) |= SVpbm_CASEFOLD)
-#define SvCASEFOLD_off(sv) (SvFLAGS(sv) &= ~SVpbm_CASEFOLD)
-
#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
-#define SvMULTI(sv) (SvFLAGS(sv) & SVpgv_MULTI)
-#define SvMULTI_on(sv) (SvFLAGS(sv) |= SVpgv_MULTI)
-#define SvMULTI_off(sv) (SvFLAGS(sv) &= ~SVpgv_MULTI)
-
#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
#define SvRVx(sv) SvRV(sv)
#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
#define SvIVXx(sv) SvIVX(sv)
+#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
+#define SvUVXx(sv) SvUVX(sv)
#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
#define SvNVXx(sv) SvNVX(sv)
#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
#define SvIV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
- (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
+ (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
#define SvNV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
- (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
+ (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
#define SvPV_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_pv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
#define SvCUR_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
#define SvLEN_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_len = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
#define SvEND_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } while (0)
-
-#define SvCUROK(sv) (SvPOK(sv) ? SvCUR(sv) : 0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
-#define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, 0, 't', 0, 0)
+#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
+#define SvTAINTED_on(sv) STMT_START{ if(tainting){sv_taint(sv);} }STMT_END
+#define SvTAINTED_off(sv) STMT_START{ if(tainting){sv_untaint(sv);} }STMT_END
+
+#define SvTAINT(sv) STMT_START{ if(tainted){SvTAINTED_on(sv);} }STMT_END
#ifdef CRIPPLED_CC
-double SvIV();
-double SvNV();
+IV SvIV _((SV* sv));
+UV SvUV _((SV* sv));
+double SvNV _((SV* sv));
+#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
#define SvPV(sv, lp) sv_pvn(sv, &lp)
-char *sv_pvn();
-I32 SvTRUE();
+char *sv_pvn _((SV *, STRLEN *));
+I32 SvTRUE _((SV *));
#define SvIVx(sv) SvIV(sv)
+#define SvUVx(sv) SvUV(sv)
#define SvNVx(sv) SvNV(sv)
#define SvPVx(sv, lp) sv_pvn(sv, &lp)
+#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
#define SvTRUEx(sv) SvTRUE(sv)
#else /* !CRIPPLED_CC */
+#undef SvIV
#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
+#undef SvUV
+#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
+
+#undef SvNV
#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
-#define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+#undef SvPV
+#define SvPV(sv, lp) \
+ (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+
+#undef SvPV_force
+#define SvPV_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvTRUE
#define SvTRUE(sv) ( \
!sv \
? 0 \
: sv_2bool(sv) )
#define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
+#define SvUVx(sv) ((Sv = (sv)), SvUV(Sv))
#define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
#define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
#define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
#endif /* CRIPPLED_CC */
+#define newRV_inc(sv) newRV(sv)
+#ifdef CRIPPLED_CC
+SV *newRV_noinc _((SV *));
+#else
+#define newRV_noinc(sv) ((Sv = newRV(sv)), --SvREFCNT(SvRV(Sv)), Sv)
+#endif
+
/* the following macro updates any magic values this sv is associated with */
#define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
-#define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
+#define SvSetSV(dst,src) if ((dst) != (src)) sv_setsv(dst,src)
+
+#define SvSetSV_nosteal(dst,src) \
+ if ((dst) != (src)) { \
+ U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
+ SvTEMP_off(src); \
+ sv_setsv(dst, src); \
+ SvFLAGS(src) |= tMpF; \
+ }
#define SvPEEK(sv) sv_peek(sv)
+#define SvIMMORTAL(sv) ((sv)==&sv_undef || (sv)==&sv_yes || (sv)==&sv_no)
+
#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
#ifndef DOSISH
-# define SvGROW(sv,len) if (SvLEN(sv) < (len)) sv_grow(sv,len)
+# define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
# define Sv_Grow sv_grow
#else
/* extra parentheses intentionally NOT placed around "len"! */
-# define SvGROW(sv,len) if (SvLEN(sv) < (unsigned long)len) \
- sv_grow(sv,(unsigned long)len)
+# define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \
+ ? sv_grow(sv,(unsigned long)len) : SvPVX(sv))
# define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))
#endif /* DOSISH */
https://perl5.git.perl.org / perl5.git / blobdiff