On 2014-12-09 3:21, Ken Barber wrote:
Instead of continuing on the old thread "A question about numbers and
representation", I decided to open a new thread avout BigDecimal to see if
we can come to closure on that separately.
Digging a bit more into Ruby, and how it handles floating point reveals that
there is in fact no automatic fluent transition to BigDecimal. All floating
point calculations are performed with the native double representation on
the platform ruby is executing on. Since Puppet does not create any
BigDecimal numbers no one has ever been able to create a value with higher
precision in Puppet than what the native double provides (unless doing so in
custom Ruby functions I should add).
So wow, this never worked? I can't say I'm surprised. I wonder if
there are any real world cases where people have done this in ruby
plugins.
ken.
BigDecimal is only mentioned once in the puppet code base in the
vendored RGen gem (it supports BigDecimal attributes (unused by Puppet
though)).
In Facter the CFPropertyList util checks if BigDecimal is defined and
uses it to parse a number and return a CFReal (I did not dig further how
CFReal is used). I guess this means that a CFReal could surface from
Facter somhow, but not sure what it does internally.
- henrik
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