X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=av.c;h=9cae02393a7a5636ebdfbbaa458afe045fb9e387;hb=a62140726edcf5b33bdd8fed9a26ab90d77ec144;hp=af8296a841e2b963ade237d1e1ef71861122c814;hpb=146174a91a192983720a158796dc066226ad0e55;p=p5sagit%2Fp5-mst-13.2.git diff --git a/av.c b/av.c index af8296a..9cae023 100644 --- a/av.c +++ b/av.c @@ -1,6 +1,7 @@ /* av.c * - * Copyright (c) 1991-1999, Larry Wall + * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, + * 2000, 2001, 2002, 2003, by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -12,6 +13,10 @@ * meant that things should remain where they had set them)." --Treebeard */ +/* +=head1 Array Manipulation Functions +*/ + #include "EXTERN.h" #define PERL_IN_AV_C #include "perl.h" @@ -25,8 +30,8 @@ Perl_av_reify(pTHX_ AV *av) if (AvREAL(av)) return; #ifdef DEBUGGING - if (SvTIED_mg((SV*)av, 'P') && ckWARN_d(WARN_DEBUGGING)) - Perl_warner(aTHX_ WARN_DEBUGGING, "av_reify called on tied array"); + if (SvTIED_mg((SV*)av, PERL_MAGIC_tied) && ckWARN_d(WARN_DEBUGGING)) + Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "av_reify called on tied array"); #endif key = AvMAX(av) + 1; while (key > AvFILLp(av) + 1) @@ -34,10 +39,8 @@ Perl_av_reify(pTHX_ AV *av) while (key) { sv = AvARRAY(av)[--key]; assert(sv); - if (sv != &PL_sv_undef) { - dTHR; + if (sv != &PL_sv_undef) (void)SvREFCNT_inc(sv); - } } key = AvARRAY(av) - AvALLOC(av); while (key) @@ -46,12 +49,20 @@ Perl_av_reify(pTHX_ AV *av) AvREAL_on(av); } +/* +=for apidoc av_extend + +Pre-extend an array. The C is the index to which the array should be +extended. + +=cut +*/ + void Perl_av_extend(pTHX_ AV *av, I32 key) { - dTHR; /* only necessary if we have to extend stack */ MAGIC *mg; - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; ENTER; SAVETMPS; @@ -90,12 +101,12 @@ Perl_av_extend(pTHX_ AV *av, I32 key) } else { if (AvALLOC(av)) { -#ifndef STRANGE_MALLOC +#if !defined(STRANGE_MALLOC) && !defined(MYMALLOC) MEM_SIZE bytes; IV itmp; #endif -#if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST) +#ifdef MYMALLOC newmax = malloced_size((void*)AvALLOC(av))/sizeof(SV*) - 1; if (key <= newmax) @@ -103,13 +114,14 @@ Perl_av_extend(pTHX_ AV *av, I32 key) #endif newmax = key + AvMAX(av) / 5; resize: + MEM_WRAP_CHECK_1(newmax+1, SV*, "panic: array extend"); #if defined(STRANGE_MALLOC) || defined(MYMALLOC) Renew(AvALLOC(av),newmax+1, SV*); #else bytes = (newmax + 1) * sizeof(SV*); #define MALLOC_OVERHEAD 16 itmp = MALLOC_OVERHEAD; - while (itmp - MALLOC_OVERHEAD < bytes) + while ((MEM_SIZE)(itmp - MALLOC_OVERHEAD) < bytes) itmp += itmp; itmp -= MALLOC_OVERHEAD; itmp /= sizeof(SV*); @@ -124,7 +136,9 @@ Perl_av_extend(pTHX_ AV *av, I32 key) Safefree(AvALLOC(av)); AvALLOC(av) = ary; #endif +#ifdef MYMALLOC resized: +#endif ary = AvALLOC(av) + AvMAX(av) + 1; tmp = newmax - AvMAX(av); if (av == PL_curstack) { /* Oops, grew stack (via av_store()?) */ @@ -135,6 +149,7 @@ Perl_av_extend(pTHX_ AV *av, I32 key) } else { newmax = key < 3 ? 3 : key; + MEM_WRAP_CHECK_1(newmax+1, SV*, "panic: array extend"); New(2,AvALLOC(av), newmax+1, SV*); ary = AvALLOC(av) + 1; tmp = newmax; @@ -151,6 +166,19 @@ Perl_av_extend(pTHX_ AV *av, I32 key) } } +/* +=for apidoc av_fetch + +Returns the SV at the specified index in the array. The C is the +index. If C is set then the fetch will be part of a store. Check +that the return value is non-null before dereferencing it to a C. + +See L for +more information on how to use this function on tied arrays. + +=cut +*/ + SV** Perl_av_fetch(pTHX_ register AV *av, I32 key, I32 lval) { @@ -159,22 +187,44 @@ Perl_av_fetch(pTHX_ register AV *av, I32 key, I32 lval) if (!av) return 0; + if (SvRMAGICAL(av)) { + MAGIC *tied_magic = mg_find((SV*)av, PERL_MAGIC_tied); + if (tied_magic || mg_find((SV*)av, PERL_MAGIC_regdata)) { + U32 adjust_index = 1; + + if (tied_magic && key < 0) { + /* Handle negative array indices 20020222 MJD */ + SV **negative_indices_glob = + hv_fetch(SvSTASH(SvRV(SvTIED_obj((SV *)av, + tied_magic))), + NEGATIVE_INDICES_VAR, 16, 0); + + if (negative_indices_glob + && SvTRUE(GvSV(*negative_indices_glob))) + adjust_index = 0; + } + + if (key < 0 && adjust_index) { + key += AvFILL(av) + 1; + if (key < 0) + return 0; + } + + sv = sv_newmortal(); + sv_upgrade(sv, SVt_PVLV); + mg_copy((SV*)av, sv, 0, key); + LvTYPE(sv) = 't'; + LvTARG(sv) = sv; /* fake (SV**) */ + return &(LvTARG(sv)); + } + } + if (key < 0) { key += AvFILL(av) + 1; if (key < 0) return 0; } - if (SvRMAGICAL(av)) { - if (mg_find((SV*)av,'P') || mg_find((SV*)av,'D')) { - dTHR; - sv = sv_newmortal(); - mg_copy((SV*)av, sv, 0, key); - PL_av_fetch_sv = sv; - return &PL_av_fetch_sv; - } - } - if (key > AvFILLp(av)) { if (!lval) return 0; @@ -198,18 +248,60 @@ Perl_av_fetch(pTHX_ register AV *av, I32 key, I32 lval) return &AvARRAY(av)[key]; } +/* +=for apidoc av_store + +Stores an SV in an array. The array index is specified as C. The +return value will be NULL if the operation failed or if the value did not +need to be actually stored within the array (as in the case of tied +arrays). Otherwise it can be dereferenced to get the original C. Note +that the caller is responsible for suitably incrementing the reference +count of C before the call, and decrementing it if the function +returned NULL. + +See L for +more information on how to use this function on tied arrays. + +=cut +*/ + SV** Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) { SV** ary; - U32 fill; - if (!av) return 0; if (!val) val = &PL_sv_undef; + if (SvRMAGICAL(av)) { + MAGIC *tied_magic = mg_find((SV*)av, PERL_MAGIC_tied); + if (tied_magic) { + /* Handle negative array indices 20020222 MJD */ + if (key < 0) { + unsigned adjust_index = 1; + SV **negative_indices_glob = + hv_fetch(SvSTASH(SvRV(SvTIED_obj((SV *)av, + tied_magic))), + NEGATIVE_INDICES_VAR, 16, 0); + if (negative_indices_glob + && SvTRUE(GvSV(*negative_indices_glob))) + adjust_index = 0; + if (adjust_index) { + key += AvFILL(av) + 1; + if (key < 0) + return 0; + } + } + if (val != &PL_sv_undef) { + mg_copy((SV*)av, val, 0, key); + } + return 0; + } + } + + if (key < 0) { key += AvFILL(av) + 1; if (key < 0) @@ -219,15 +311,6 @@ Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) if (SvREADONLY(av) && key >= AvFILL(av)) Perl_croak(aTHX_ PL_no_modify); - if (SvRMAGICAL(av)) { - if (mg_find((SV*)av,'P')) { - if (val != &PL_sv_undef) { - mg_copy((SV*)av, val, 0, key); - } - return 0; - } - } - if (!AvREAL(av) && AvREIFY(av)) av_reify(av); if (key > AvMAX(av)) @@ -235,7 +318,6 @@ Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) ary = AvARRAY(av); if (AvFILLp(av) < key) { if (!AvREAL(av)) { - dTHR; if (av == PL_curstack && key > PL_stack_sp - PL_stack_base) PL_stack_sp = PL_stack_base + key; /* XPUSH in disguise */ do @@ -257,6 +339,14 @@ Perl_av_store(pTHX_ register AV *av, I32 key, SV *val) return &ary[key]; } +/* +=for apidoc newAV + +Creates a new AV. The reference count is set to 1. + +=cut +*/ + AV * Perl_newAV(pTHX) { @@ -271,6 +361,16 @@ Perl_newAV(pTHX) return av; } +/* +=for apidoc av_make + +Creates a new AV and populates it with a list of SVs. The SVs are copied +into the array, so they may be freed after the call to av_make. The new AV +will have a reference count of 1. + +=cut +*/ + AV * Perl_av_make(pTHX_ register I32 size, register SV **strp) { @@ -320,6 +420,15 @@ Perl_av_fake(pTHX_ register I32 size, register SV **strp) return av; } +/* +=for apidoc av_clear + +Clears an array, making it empty. Does not free the memory used by the +array itself. + +=cut +*/ + void Perl_av_clear(pTHX_ register AV *av) { @@ -327,8 +436,8 @@ Perl_av_clear(pTHX_ register AV *av) SV** ary; #ifdef DEBUGGING - if (SvREFCNT(av) <= 0 && ckWARN_d(WARN_DEBUGGING)) { - Perl_warner(aTHX_ WARN_DEBUGGING, "Attempt to clear deleted array"); + if (SvREFCNT(av) == 0 && ckWARN_d(WARN_DEBUGGING)) { + Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "Attempt to clear deleted array"); } #endif if (!av) @@ -349,11 +458,14 @@ Perl_av_clear(pTHX_ register AV *av) ary = AvARRAY(av); key = AvFILLp(av) + 1; while (key) { - SvREFCNT_dec(ary[--key]); + SV * sv = ary[--key]; + /* undef the slot before freeing the value, because a + * destructor might try to modify this arrray */ ary[key] = &PL_sv_undef; + SvREFCNT_dec(sv); } } - if (key = AvARRAY(av) - AvALLOC(av)) { + if ((key = AvARRAY(av) - AvALLOC(av))) { AvMAX(av) += key; SvPVX(av) = (char*)AvALLOC(av); } @@ -361,6 +473,14 @@ Perl_av_clear(pTHX_ register AV *av) } +/* +=for apidoc av_undef + +Undefines the array. Frees the memory used by the array itself. + +=cut +*/ + void Perl_av_undef(pTHX_ register AV *av) { @@ -371,7 +491,7 @@ Perl_av_undef(pTHX_ register AV *av) /*SUPPRESS 560*/ /* Give any tie a chance to cleanup first */ - if (SvTIED_mg((SV*)av, 'P')) + if (SvTIED_mg((SV*)av, PERL_MAGIC_tied)) av_fill(av, -1); /* mg_clear() ? */ if (AvREAL(av)) { @@ -389,6 +509,15 @@ Perl_av_undef(pTHX_ register AV *av) } } +/* +=for apidoc av_push + +Pushes an SV onto the end of the array. The array will grow automatically +to accommodate the addition. + +=cut +*/ + void Perl_av_push(pTHX_ register AV *av, SV *val) { @@ -398,7 +527,7 @@ Perl_av_push(pTHX_ register AV *av, SV *val) if (SvREADONLY(av)) Perl_croak(aTHX_ PL_no_modify); - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; PUSHSTACKi(PERLSI_MAGIC); PUSHMARK(SP); @@ -415,17 +544,26 @@ Perl_av_push(pTHX_ register AV *av, SV *val) av_store(av,AvFILLp(av)+1,val); } +/* +=for apidoc av_pop + +Pops an SV off the end of the array. Returns C<&PL_sv_undef> if the array +is empty. + +=cut +*/ + SV * Perl_av_pop(pTHX_ register AV *av) { SV *retval; MAGIC* mg; - if (!av || AvFILL(av) < 0) - return &PL_sv_undef; + if (!av) + return &PL_sv_undef; if (SvREADONLY(av)) Perl_croak(aTHX_ PL_no_modify); - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; PUSHSTACKi(PERLSI_MAGIC); PUSHMARK(SP); @@ -441,6 +579,8 @@ Perl_av_pop(pTHX_ register AV *av) POPSTACK; return retval; } + if (AvFILL(av) < 0) + return &PL_sv_undef; retval = AvARRAY(av)[AvFILLp(av)]; AvARRAY(av)[AvFILLp(av)--] = &PL_sv_undef; if (SvSMAGICAL(av)) @@ -448,19 +588,30 @@ Perl_av_pop(pTHX_ register AV *av) return retval; } +/* +=for apidoc av_unshift + +Unshift the given number of C values onto the beginning of the +array. The array will grow automatically to accommodate the addition. You +must then use C to assign values to these new elements. + +=cut +*/ + void Perl_av_unshift(pTHX_ register AV *av, register I32 num) { register I32 i; register SV **ary; MAGIC* mg; + I32 slide; - if (!av || num <= 0) + if (!av) return; if (SvREADONLY(av)) Perl_croak(aTHX_ PL_no_modify); - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; PUSHSTACKi(PERLSI_MAGIC); PUSHMARK(SP); @@ -477,6 +628,8 @@ Perl_av_unshift(pTHX_ register AV *av, register I32 num) return; } + if (num <= 0) + return; if (!AvREAL(av) && AvREIFY(av)) av_reify(av); i = AvARRAY(av) - AvALLOC(av); @@ -491,6 +644,9 @@ Perl_av_unshift(pTHX_ register AV *av, register I32 num) } if (num) { i = AvFILLp(av); + /* Create extra elements */ + slide = i > 0 ? i : 0; + num += slide; av_extend(av, i + num); AvFILLp(av) += num; ary = AvARRAY(av); @@ -498,20 +654,32 @@ Perl_av_unshift(pTHX_ register AV *av, register I32 num) do { ary[--num] = &PL_sv_undef; } while (num); + /* Make extra elements into a buffer */ + AvMAX(av) -= slide; + AvFILLp(av) -= slide; + SvPVX(av) = (char*)(AvARRAY(av) + slide); } } +/* +=for apidoc av_shift + +Shifts an SV off the beginning of the array. + +=cut +*/ + SV * Perl_av_shift(pTHX_ register AV *av) { SV *retval; MAGIC* mg; - if (!av || AvFILL(av) < 0) + if (!av) return &PL_sv_undef; if (SvREADONLY(av)) Perl_croak(aTHX_ PL_no_modify); - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; PUSHSTACKi(PERLSI_MAGIC); PUSHMARK(SP); @@ -527,6 +695,8 @@ Perl_av_shift(pTHX_ register AV *av) POPSTACK; return retval; } + if (AvFILL(av) < 0) + return &PL_sv_undef; retval = *AvARRAY(av); if (AvREAL(av)) *AvARRAY(av) = &PL_sv_undef; @@ -538,12 +708,29 @@ Perl_av_shift(pTHX_ register AV *av) return retval; } +/* +=for apidoc av_len + +Returns the highest index in the array. Returns -1 if the array is +empty. + +=cut +*/ + I32 Perl_av_len(pTHX_ register AV *av) { return AvFILL(av); } +/* +=for apidoc av_fill + +Ensure than an array has a given number of elements, equivalent to +Perl's C<$#array = $fill;>. + +=cut +*/ void Perl_av_fill(pTHX_ register AV *av, I32 fill) { @@ -552,7 +739,7 @@ Perl_av_fill(pTHX_ register AV *av, I32 fill) Perl_croak(aTHX_ "panic: null array"); if (fill < 0) fill = -1; - if (mg = SvTIED_mg((SV*)av, 'P')) { + if ((mg = SvTIED_mg((SV*)av, PERL_MAGIC_tied))) { dSP; ENTER; SAVETMPS; @@ -591,6 +778,15 @@ Perl_av_fill(pTHX_ register AV *av, I32 fill) (void)av_store(av,fill,&PL_sv_undef); } +/* +=for apidoc av_delete + +Deletes the element indexed by C from the array. Returns the +deleted element. If C equals C, the element is freed +and null is returned. + +=cut +*/ SV * Perl_av_delete(pTHX_ AV *av, I32 key, I32 flags) { @@ -600,30 +796,56 @@ Perl_av_delete(pTHX_ AV *av, I32 key, I32 flags) return Nullsv; if (SvREADONLY(av)) Perl_croak(aTHX_ PL_no_modify); + + if (SvRMAGICAL(av)) { + MAGIC *tied_magic = mg_find((SV*)av, PERL_MAGIC_tied); + SV **svp; + if ((tied_magic || mg_find((SV*)av, PERL_MAGIC_regdata))) { + /* Handle negative array indices 20020222 MJD */ + if (key < 0) { + unsigned adjust_index = 1; + if (tied_magic) { + SV **negative_indices_glob = + hv_fetch(SvSTASH(SvRV(SvTIED_obj((SV *)av, + tied_magic))), + NEGATIVE_INDICES_VAR, 16, 0); + if (negative_indices_glob + && SvTRUE(GvSV(*negative_indices_glob))) + adjust_index = 0; + } + if (adjust_index) { + key += AvFILL(av) + 1; + if (key < 0) + return Nullsv; + } + } + svp = av_fetch(av, key, TRUE); + if (svp) { + sv = *svp; + mg_clear(sv); + if (mg_find(sv, PERL_MAGIC_tiedelem)) { + sv_unmagic(sv, PERL_MAGIC_tiedelem); /* No longer an element */ + return sv; + } + return Nullsv; + } + } + } + if (key < 0) { key += AvFILL(av) + 1; if (key < 0) return Nullsv; } - if (SvRMAGICAL(av)) { - SV **svp; - if ((mg_find((SV*)av,'P') || mg_find((SV*)av,'D')) - && (svp = av_fetch(av, key, TRUE))) - { - sv = *svp; - mg_clear(sv); - if (mg_find(sv, 'p')) { - sv_unmagic(sv, 'p'); /* No longer an element */ - return sv; - } - return Nullsv; /* element cannot be deleted */ - } - } + if (key > AvFILLp(av)) return Nullsv; else { + if (!AvREAL(av) && AvREIFY(av)) + av_reify(av); sv = AvARRAY(av)[key]; if (key == AvFILLp(av)) { + AvARRAY(av)[key] = &PL_sv_undef; do { AvFILLp(av)--; } while (--key >= 0 && AvARRAY(av)[key] == &PL_sv_undef); @@ -641,28 +863,62 @@ Perl_av_delete(pTHX_ AV *av, I32 key, I32 flags) } /* - * This relies on the fact that uninitialized array elements - * are set to &PL_sv_undef. - */ +=for apidoc av_exists + +Returns true if the element indexed by C has been initialized. +This relies on the fact that uninitialized array elements are set to +C<&PL_sv_undef>. + +=cut +*/ bool Perl_av_exists(pTHX_ AV *av, I32 key) { if (!av) return FALSE; + + + if (SvRMAGICAL(av)) { + MAGIC *tied_magic = mg_find((SV*)av, PERL_MAGIC_tied); + if (tied_magic || mg_find((SV*)av, PERL_MAGIC_regdata)) { + SV *sv = sv_newmortal(); + MAGIC *mg; + /* Handle negative array indices 20020222 MJD */ + if (key < 0) { + unsigned adjust_index = 1; + if (tied_magic) { + SV **negative_indices_glob = + hv_fetch(SvSTASH(SvRV(SvTIED_obj((SV *)av, + tied_magic))), + NEGATIVE_INDICES_VAR, 16, 0); + if (negative_indices_glob + && SvTRUE(GvSV(*negative_indices_glob))) + adjust_index = 0; + } + if (adjust_index) { + key += AvFILL(av) + 1; + if (key < 0) + return FALSE; + } + } + + mg_copy((SV*)av, sv, 0, key); + mg = mg_find(sv, PERL_MAGIC_tiedelem); + if (mg) { + magic_existspack(sv, mg); + return (bool)SvTRUE(sv); + } + + } + } + if (key < 0) { key += AvFILL(av) + 1; if (key < 0) return FALSE; } - if (SvRMAGICAL(av)) { - if (mg_find((SV*)av,'P') || mg_find((SV*)av,'D')) { - SV *sv = sv_newmortal(); - mg_copy((SV*)av, sv, 0, key); - magic_existspack(sv, mg_find(sv, 'p')); - return SvTRUE(sv); - } - } + if (key <= AvFILLp(av) && AvARRAY(av)[key] != &PL_sv_undef && AvARRAY(av)[key]) { @@ -671,92 +927,3 @@ Perl_av_exists(pTHX_ AV *av, I32 key) else return FALSE; } - -/* AVHV: Support for treating arrays as if they were hashes. The - * first element of the array should be a hash reference that maps - * hash keys to array indices. - */ - -STATIC I32 -S_avhv_index_sv(pTHX_ SV* sv) -{ - I32 index = SvIV(sv); - if (index < 1) - Perl_croak(aTHX_ "Bad index while coercing array into hash"); - return index; -} - -HV* -Perl_avhv_keys(pTHX_ AV *av) -{ - SV **keysp = av_fetch(av, 0, FALSE); - if (keysp) { - SV *sv = *keysp; - if (SvGMAGICAL(sv)) - mg_get(sv); - if (SvROK(sv)) { - sv = SvRV(sv); - if (SvTYPE(sv) == SVt_PVHV) - return (HV*)sv; - } - } - Perl_croak(aTHX_ "Can't coerce array into hash"); - return Nullhv; -} - -SV** -Perl_avhv_fetch_ent(pTHX_ AV *av, SV *keysv, I32 lval, U32 hash) -{ - SV **indsvp; - HV *keys = avhv_keys(av); - HE *he; - STRLEN n_a; - - he = hv_fetch_ent(keys, keysv, FALSE, hash); - if (!he) - Perl_croak(aTHX_ "No such pseudo-hash field \"%s\"", SvPV(keysv,n_a)); - return av_fetch(av, avhv_index_sv(HeVAL(he)), lval); -} - -SV * -Perl_avhv_delete_ent(pTHX_ AV *av, SV *keysv, I32 flags, U32 hash) -{ - HV *keys = avhv_keys(av); - HE *he; - - he = hv_fetch_ent(keys, keysv, FALSE, hash); - if (!he || !SvOK(HeVAL(he))) - return Nullsv; - - return av_delete(av, avhv_index_sv(HeVAL(he)), flags); -} - -/* Check for the existence of an element named by a given key. - * - */ -bool -Perl_avhv_exists_ent(pTHX_ AV *av, SV *keysv, U32 hash) -{ - HV *keys = avhv_keys(av); - HE *he; - - he = hv_fetch_ent(keys, keysv, FALSE, hash); - if (!he || !SvOK(HeVAL(he))) - return FALSE; - - return av_exists(av, avhv_index_sv(HeVAL(he))); -} - -HE * -Perl_avhv_iternext(pTHX_ AV *av) -{ - HV *keys = avhv_keys(av); - return hv_iternext(keys); -} - -SV * -Perl_avhv_iterval(pTHX_ AV *av, register HE *entry) -{ - SV *sv = hv_iterval(avhv_keys(av), entry); - return *av_fetch(av, avhv_index_sv(sv), TRUE); -}