How to identify incompatible use of pack and unpack. And how to fix it for following examples if they are incompatible uses. I want to use code around it in perl 5.22. This is present in perl 5.8 currently and working fine. I dont know if it will break or work when I upgrade perl to v5.22
pack("$L", unpack("$L", $_)
sprintf("%08x", unpack("N",function($relay)));
push(@rv, join('.', unpack("CCCC", function($i))));
unpack("u", $len . $1 );
unpack("w*", $v);
unpack("V", $v) == 1
unpack("x$start_offset x4 $L$L$L$L$S$S$L$L", $file);
unpack("x$d_off $S/a", $file);
unpack("H*", shift);
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