I think I may have found a problem with Perl's pack function. Here is the code:

use strict;

my @bits = (
   "0001",        
   "0010",        
   "0011",              
   "0100",        
   "0101"
);

my @out_data;
my $idx;

foreach my $bitval ( @bits ) {
   $out_data[ $idx++ ] = pack( "b4", $bitval );
}

open( OUT, ">d:\\tmp\\hex_out.txt" );

select( OUT );

print @out_data;

close( OUT );

[download]

I get the following set of bytes in the output file:

08 04 0c 02 0d 0a

[download]

Notice the (gratuitous?) "0d". I cannot figure out why I am getting that byte.

Thanks,

Carl-Joseph

In reply to Problem with Pack by Carl-Joseph

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