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From: Daniel Wallin (dalwan01_at_[hidden])
Date: 2004-11-13 18:06:39

Rene Rivera wrote:
> Daniel James wrote:
>> David Abrahams wrote:
>>> This approach is superior to bgl_named_params in part because it
>>> avoids undue coupling and dependency in a library design. That
>>> coupling is discussed in depth in this excerpt from C++ Template
>>> Metaprogramming (
>> [snipped]
>> This coupling could be avoided by using an overloaded operator to
>> combine the arguments, for example:
>> f(slew(.799) | name("z"));
>> An advantage of this method is that it avoids the need for the
>> forwarding functions.
> I was just going over the library and have a related question. Is there
> a rational as to why the forwarding functions where used instead of
> overloading the "," operator?

operator, *is* overloaded. It's just that if you use it you have to:

   (1) Add additional parameters around the parameter list.
   (2) Only use named parameters, position gets no meaning.

Daniel Wallin

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