Packing/unpacking

[Julie]

I am trying to take a number 64001072 and get this value into a 3-byte binary value.

I have tried:

$val = 640001072;
$value = pack("l",$val);
($s1, $s2, $s3, $s4) = unpack("CCCC",$value);
$new_value = pack("CCC",$s3,$s2,$s1);

this works for other values, but does not seem to work for this value.

Any suggestions???

Thanks,
Julie

 

[Anno Siegel]

I am trying to take a number 64001072 and get this value into a 3-byte
binary value.

I have tried:

$val = 640001072;
$value = pack("l",$val);
($s1, $s2, $s3, $s4) = unpack("CCCC",$value);
$new_value = pack("CCC",$s3,$s2,$s1);

this works for other values, but does not seem to work for this value.

Any suggestions???

No. 64001072 > 2**24. It won't fit into three bytes, whichever way you
turn it.

Anno

 

[Chris Mattern]

I am trying to take a number 64001072 and get this value into a 3-byte binary value.

Well, that'll be a neat trick if you can manage it.

The number requires four bytes to hold it.

Chris Mattern