>>>>> "BRH" == Bryan R Harris <bryan_r_har...@raytheon.com> writes:
BRH> Maybe this is just my own ignorance on big-endian vs. little endian, but
BRH> this code:
BRH> print "big-endian: ", unpack("H*", pack("d", -3205.0569059)), "\n";
BRH> print "little-endian: ", unpack("h*", pack("d", -3205.0569059)), "\n";
BRH> prints:
BRH> big-endian: e626c5221d0aa9c0
BRH> little-endian: 6e625c22d1a09a0c
note that those are the same bytes but each byte is printed with
different ordering for the hex digits.
the docs say this:
h A hex string (low nybble first).
H A hex string (high nybble first).
and a nybble (or nibble) is a single hex digit of 4 bits and there are
two in a byte. the h vs H only changes the nibble order in a byte. this
has nothing to do with endian issues which are a byte ordering thing.
pack doesn't have a direct way to deal with endians with floats. you can
just use reverse on the byte string to control that. that is what i do
in Sort::Maker for this. did you look at that module yet? as i keep
saying it does exactly what you are trying to do so you can learn from it.
uri
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