On 9/3/19 5:52 PM, yary wrote:
I'm puzzled what you really want, what the end goal is.
For looking at different representations of the same item, "pack" and
"unpack" are useful. I've only used the perl5 versions of those, for p6
it is "experimental". Different machines will represent the same real
differently, and if I recall correctly not even IEEE standards exactly
specify representation of float and it can vary by compiler too.
Perl 6's native experimental pack/unpack don't support real, nor does
the P5pack module, so reverting to perl5... big/little b/h is binary or
hex in big/little-endian order. With quoting that should work in either
Win or Unix
$ perl -E "say unpack 'b*',pack 'f', 12.34"
00100101000011101010001010000010
$ perl -E "say unpack 'B*',pack 'f', 12.34"
10100100011100000100010101000001
$ perl -E "say unpack 'h*',pack 'f', 12.34"
4a075414
$ perl -E "say unpack 'H*',pack 'f', 12.34"
a4704541
Thank you!
What is the difference between b*, B*, h*, and H* ?
$ perl -E "say unpack 'b*',pack 'f', 11.00"
00000000000000000000110010000010
$ perl -E "say unpack 'b*',pack 'f', 11.01"
01101111000101000000110010000010
$ perl -E "say unpack 'b*',pack 'f', 10.999999999"
00000000000000000000110010000010
