I'm trying to access a list of arrays from IC, but I'm walking off the end of the data. Not too surprising as I'm getting the third element instead of the first, but I'm damned if I can see why that is? Cluebats anyone?

#! perl -sw
use 5.010;
use strict;
use Inline C => Config => BUILD_NOISY => 1;
use Inline C => <<'END_C',  NAME => 'LoA', CLEAN_AFTER_BUILD => 0;

#include <stdarg.h>


SV *test( SV *dummy, ...  ) {
    Inline_Stack_Vars;
    int i;
    int n = Inline_Stack_Items;

    printf( "Got %d items\n", n );

    for( i = 0; i < n; ++i ) {
        int j;
        SV *sv = Inline_Stack_Item( i );
        AV *av = (AV *)SvRV( sv );

        if( !SvROK( sv )  || SvTYPE( SvRV( sv ) ) != SVt_PVAV )
            croak( "Requires a list of array refs (%d => type %d)\n",
                i, SvTYPE( SvRV( sv ) )
            );

        printf( "Item %d has %d elements\n", i, av_len( av ) );

        for( j = 0; j <= av_len( av ); ++j ) {

            SV *sv2 =  (SV*)av_fetch( av, j, 0  );

            printf( "[%d][%d] %x %d '%s'\n",
                i, j, sv2, SvTYPE( sv2 ), SvPVX( SvRV( sv2 ) )
            );
        }
    }
    printf( "here\n" );
    Inline_Stack_Reset;
    return &PL_sv_yes;
}

END_C

use Data::Dump qw[ pp ];

my @a = map [ 'A' .. 'J' ], 1 .. 5;

pp \@a;

test( @a );

__END__
__OUPUT__
[ 0:58:24.60] C:\test>IC-LoA.pl
[
  ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"],
  ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"],
  ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"],
  ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"],
  ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"],
]
Got 5 items
Item 0 has 9 elements
[0][0] 3b27918 0 'C'
[0][1] 3b27920 0 'D'
[0][2] 3b27928 0 'E'
[0][3] 3b27930 0 'F'
[0][4] 3b27938 0 'G'
[0][5] 3b27940 0 'H'
[0][6] 3b27948 0 'I'
[0][7] 3b27950 0 'J'

segfault:Memory violation.
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