Re^4: Big Int to hex with 5.6

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Re^5: Big Int to hex with 5.6 by ysth (Canon) on Dec 12, 2004 at 23:36 UTC
Then I would strongly encourage you to not use the module at all. IIRC, there was an initial attempt to convert the perl4 bigint facilities to a perl5 module that then languished in an incomplete and buggy state for years. Only lately has the module been maintained and improved (and made much faster). To quote the doc you linked to: `BUGS The current version of this module is a preliminary version of the rea +l thing that is currently (as of perl5.002) under development.` [download] Seeing that 5.002 in 5.6 should give you a clue that nobody was bothering much about it for a long time. OTOH, if the bugs aren't biting you, they aren't biting you.	[reply] [d/l]
Re^6: Big Int to hex with 5.6 by ZlR (Chaplain) on Dec 13, 2004 at 00:13 UTC
Arg ! But i need a way to do it ! Here's a nice function i found that converts from hex to dec using only one BigInt. `#!perl use strict; use Math::BigInt; sub HeX { my $n = shift; $n = '0' x (4 - (length($n) % 4)) . $n; my $m = Math::BigInt->new(0); while (my $o = substr($n, 0, 4, '')){ $m = $m * 65536 + hex $o; } $m; }` [download] I'm trying to find a way to do something similar but from dec to hex . Maybe you have an idea ?	[reply] [d/l]
Re^7: Big Int to hex with 5.6 by ysth (Canon) on Dec 13, 2004 at 00:42 UTC
This works for me on cygwin perl 5.6.2 (Math::BigInt version 0.01): `#!/usr/local/bin/perl5.6.2 use Math::BigInt; BEGIN { if (!exists &Math::BigInt::as_hex) { *Math::BigInt::as_hex = sub { my $i = shift; my $hex = ''; do { my $mod = $i % 16; $hex .= sprintf("%x", $mod); } while $i = $i / 16; scalar reverse $hex; } } } $z = new Math::BigInt("1234567890"x 3); print $z->as_hex();` [download] Slight variations failed completely, though :)	[reply] [d/l]
Re^8: Big Int to hex with 5.6 by ZlR (Chaplain) on Dec 13, 2004 at 00:56 UTC
Re^7: Big Int to hex with 5.6 by fglock (Vicar) on Dec 13, 2004 at 04:06 UTC
This is the as_hex() function from Activestate 5.8.0 (which is actually different from the one currently in CPAN): Read more... (1183 Bytes)	[reply] [d/l]