[Boost-users] [serialization] transparently treating a class like a built-in type

Subject: [Boost-users] [serialization] transparently treating a class like a built-in type
From: Kenneth Riddile (kfriddile_at_[hidden])
Date: 2010-07-26 20:51:22

I have some xml archives that store a lot of floating point values.  I 
would like to read these into a program that is designed to easily 
switch between using floats and a custom fixed-point type via a typedef. 
  The way that would be easiest would be to add a serialize() method to 
the fixed-point class definition.  However, the xml archive requires 
that I use an nvp wrapper.  Since the data was originally serialized out 
as plain floats, the data looks something like this:

<x>0.95260203</x>
<y>0.87517798</y>
<z>0.54323343</z>

whereas, to serialize this into my fixed-point type, it would need 
another level of indirection due to the additional required nvp wrapper 
like so:

<x><value>0.95260203</value></x>
<y><value>0.87517798</value></y>
<z><value>0.54323343</value></z>

Is there a way to accomplish what I'm trying to do?  The fixed-point 
type is convertible from (but not to) a float if that helps.