[boost] auto_set / state_saver

From: Jason Hise (chaos_at_[hidden])
Date: 2005-03-13 12:56:11

I use the following as an implementation detail, and it was mentioned by 
Pavel that a similar facility called state_saver is used in the 
implementation of the serialization library.  Does it make sense for 
this to be refactored into boost/detail?

template < typename T >
struct auto_set
{
    T & var; T val;
    auto_set ( T & var, T val ) :
    var ( var ), val ( val ) {  }
    ~ auto_set (  ) { var = val; }
};

-Jason