Re^2: Converting negative number to binary with specific width

I was thinking something more along the lines of

c:\@Work\Perl\monks>perl -wMstrict -le
"for my $n (-2, -1, 0, 1, 2, 1023, 1024, 1025) {
   my $bin = reverse unpack 'b10', pack 'v', $n;
   print qq{'$bin' <= $n};
   }
"
'1111111110' <= -2
'1111111111' <= -1
'0000000000' <= 0
'0000000001' <= 1
'0000000010' <= 2
'1111111111' <= 1023
'0000000000' <= 1024
'0000000001' <= 1025
[download]

to get closer to the 'b' formatting of sprintf (although I'm not sure this is any better than substr-inging it). (Update: Also see perlpacktut.)

Give a man a fish: <%-{-{-{-<

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Re^3: Converting negative number to binary with specific width by Anonymous Monk on Nov 03, 2015 at 06:31 UTC
what os the is use of pack 'v' for?	[reply]
Re^4: Converting negative number to binary with specific width by Anonymous Monk on Nov 03, 2015 at 07:35 UTC
what os the is use of pack 'v' for? The documentation explains it :) `v An unsigned short (16-bit) in "VAX" (little-endian) order. V An unsigned long (32-bit) in "VAX" (little-endian) order.` [download]	[reply] [d/l]
Re^5: Converting negative number to binary with specific width by Anonymous Monk on Nov 03, 2015 at 07:44 UTC
do you have to use it? Isn't unpack 'b10' enough?	[reply]
Re^6: Converting negative number to binary with specific width by AnomalousMonk (Archbishop) on Nov 03, 2015 at 10:33 UTC