YAML's handling of Bignum's in 1.8.4

ruby-talk
1

Is there any reason why 1.8.4's YAML exposes what seems to
be an implementation detail of how many bits it takes to
overflow into a Bignum.

It seems for interoperability with other languages that
use yaml, it'd be very nice to hide this detail and
simply show the (possibly large) integer value, as
it appears 1.8.2 did.

=============with 1.8.4=============
=> true
irb(main):003:0> puts [1,1<<200].to_yaml
- 1
- !ruby/object:Bignum 1606938044258990275541962092341162602522202993782792835301376
=> nil

=============with 1.8.2=============
irb(main):014:0> puts [1, 1<<200].to_yaml

···

---
- 1
- 1606938044258990275541962092341162602522202993782792835301376
=> nil

2

Seems to be platform-specific:

$ uname -a
Darwin kaa.coop.robotcoop.com 8.5.0 Darwin Kernel Version 8.5.0: Sun Jan 22 10:38:46 PST 2006; root:xnu-792.6.61.obj~1/RELEASE_PPC Power Macintosh powerpc
$ ruby -v -ryaml -e 'puts [1, 1<<200].to_yaml'
ruby 1.8.4 (2005-12-24) [powerpc-darwin8.4.0]

···

On Feb 20, 2006, at 5:33 PM, Ron M wrote:

Is there any reason why 1.8.4's YAML exposes what seems to
be an implementation detail of how many bits it takes to
overflow into a Bignum.

It seems for interoperability with other languages that
use yaml, it'd be very nice to hide this detail and
simply show the (possibly large) integer value, as
it appears 1.8.2 did.

---
- 1
- 1606938044258990275541962092341162602522202993782792835301376

$ uname -a
FreeBSD sandbox.robotcoop.com 4.10-RELEASE FreeBSD 4.10-RELEASE #0: Wed Feb 23 15:47:08 CST 2005 root@fbsdbootload:/usr/obj/usr/src/sys/theplanet i386
$ ruby -v -ryaml -e 'puts [1, 1<<200].to_yaml'
ruby 1.8.4 (2005-12-24) [i386-freebsd4]
---
- 1
- !ruby/object:Bignum 1606938044258990275541962092341162602522202993782792835301376

(same for FreeBSD 5.4 and 6.0)

--
Eric Hodel - drbrain@segment7.net - http://segment7.net
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