Re^2: Math::BigInt and Leading Zeros

sprintf doesn't quite work - it can only handle whatever the underlying perl library handles natively:

$ perl5.8.6 -MMath::BigInt -e '$i = Math::BigInt->new("123_456_789_000
+_000"); printf "%025d\n", $i'
-000000000000000000000001
[download]

The next best thing I can think of is:

$ perl5.8.6 -MMath::BigInt -e '$i = Math::BigInt->new("123_456_789_000
+_000"); $s = $i->bstr(); $s = '0' x (25 - length $s) . $s; print $s,$
+/'
0000000000123456789000000
[download]

Note that this does the right thing if the string is already longer than you want, e.g.:

$ perl5.8.6 -MMath::BigInt -e '$i = Math::BigInt->new("123_456_789_000
+_000"); $s = $i->bstr(); $s = '0' x (10 - length $s) . $s; print $s,$
+/'
123456789000000
[download]

Hope that helps.

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Re^3: Math::BigInt and Leading Zeros by hv (Prior) on May 05, 2005 at 09:38 UTC
The underlying perl library natively handles strings fine - just change '%25d' to '%25s': `zen% perl -MMath::BigInt -e '$i = Math::BigInt->new("123_456_789_000 +_000"); printf "%025s\n", $i' 0000000000123456789000000 zen%` [download] Hugo	[reply] [d/l]
Re^4: Math::BigInt and Leading Zeros by Tanktalus (Canon) on May 05, 2005 at 12:55 UTC
You may not have tried a big enough number. `$ perl5.8.6 -MMath::BigInt -e '$i = Math::BigInt->new("123_456_789_000 +_000_000_000"); printf "%045d\n", $i' -00000000000000000000000000000000000000000001` [download]	[reply] [d/l]
Re^5: Math::BigInt and Leading Zeros by radiantmatrix (Parson) on May 05, 2005 at 19:43 UTC
You're still trying to use decimals (%d), when the parent suggested using strings (%s): `use Math::BigInt; my $i = Math::BigInt->new('123_456_789_000_000_000_000'); printf qq'%045s\n', $i; __OUTPUT__ 000000000000000000000000123456789000000000000` [download] radiantmatrix `require General::Disclaimer; s//2fde04abe76c036c9074586c1/; while(m/(.)/g){print substr(' ,JPacehklnorstu',hex($1),1)}`	[reply] [d/l]
Re^6: Math::BigInt and Leading Zeros by Tanktalus (Canon) on May 05, 2005 at 23:44 UTC