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Re: dict_var_resized

From: John Darrington
Subject: Re: dict_var_resized
Date: Wed, 6 May 2009 08:54:00 +0800
User-agent: Mutt/1.5.18 (2008-05-17)

On Tue, May 05, 2009 at 07:51:37PM -0400, Jason Stover wrote:

     > interaction_variable_create creates this internal variable.  But
     > the only place it seems to be used is in interaction_case_data, and
     > there, the only use it has is to compare its dict_index 
     > with  that of another variable.  For internal variables, the
     > dict_index is merely a serial number, so comparing the dict_indexes is
     > probably doing nothing more than comparing the variable pointers
     > themselves.
     I need to compare these internal variables to other variables,
     so what is the best way? 

To answer that question I have to ask what you mean by "compare" in
this context.  In other words what are the `value semantics' for the

If you just want to check if a pointer to a variable points to the
same variable as another, then "if (v1 == v2)" will do the job.
But I'm not sure if that's what you want.


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