[CppAD] Getting the value of AD<Base> objects without calling Value()

[Brad Bell]

I thought that the discrete functions specified in
   http://www.coin-or.org/CppAD/Doc/discrete.htm
could be used to convert a variable to a parameter, but this is not the 
case. (You can call Value(x) during tape recording so long as x is a 
parameter.). Thus you have pointed out a missing feature in CppAD.

I have added a new function for this called var2par; see
   http://www.coin-or.org/CppAD/Doc/var2par.htm
Its example
   http://www.coin-or.org/CppAD/Doc/var2par.cpp.htm
demonstrates how to do what you are asking for.

Mitch Watrous wrote:

> Hi.
>
> Is there a way to get the Base value of an AD<Base> type that is an 
> independent variable being taped other than using the Value function, 
> which won't work for such a variable?
>
> Mitch
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