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Re^2: 3-byte representation

by BrowserUk (Pope)
on Oct 12, 2011 at 19:10 UTC ( #931068=note: print w/ replies, xml ) Need Help??


in reply to Re: 3-byte representation
in thread 3-byte representation

I tested my solutions before posting them.

Really? Really, really? Hm?

#! perl -slw use strict; sub pack24be{ substr( pack('l>', $_[0]), 1) } sub unpack24be{ unpack('l>', "$_[0]\0") >> 8 } sub pack24le{ substr( pack('l<', $_[0] ), 0, 3); } sub unpack24le{ unpack( 'l<', "\0$_[0]" ) >> 8 } print( "be: $_: ", unpack24be( pack24be( $_ ) ) ), print( "le: $_: ", unpack24le( pack24le( $_ ) ) ) for ( -8388608, -8388607, -2, -1, 0, 1, 2, 8388606, 8388607 ) __END__ C:\test>junk101 (version 2 ) be: -8388608: -2147483648 le: -8388608: -2147483648 be: -8388607: -2147483392 le: -8388607: -2147483392 be: -2: -512 le: -2: -512 be: -1: -256 le: -1: -256 be: 0: 0 le: 0: 0 be: 1: 256 le: 1: 256 be: 2: 512 le: 2: 512 be: 8388606: 2147483136 le: 8388606: 2147483136 be: 8388607: 2147483392 le: 8388607: 2147483392 C:\test>junk101 (version 3) be: -8388608: 72057594029539328 le: -8388608: 72057594029539328 be: -8388607: 72057594029539329 le: -8388607: 72057594029539329 be: -2: 72057594037927934 le: -2: 72057594037927934 be: -1: 72057594037927935 le: -1: 72057594037927935 be: 0: 0 le: 0: 0 be: 1: 1 le: 1: 1 be: 2: 2 le: 2: 2 be: 8388606: 8388606 le: 8388606: 8388606 be: 8388607: 8388607 le: 8388607: 8388607

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.


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