Re: Is there a typedef or a using-declaration equivalent for
templates ?
On 2012-04-01 10:03, Timothy Madden wrote:
On Tue, 20 Mar 2012 16:17:05 -0700 (PDT), Daniel Kr????gler wrote:
Now I'm completely confused given your original description where
you wrote:
"I end up with a rather long construct to use throughout my
class:
base_class_name:: template templ_name<arg,...>"
Can you please provide a simple and self-explaining example?
The rather-long-construct is "base_class_name:: template
templ_name", because the base class name is a template so it is
long.
So I want to give the nested template from the base class a new name
like "I", so later I could write
I<arg, ...>
instead of that long line.
Exactly this was the reason why I suggested to use the alias template
type in my first reply:
template<class... Args>
using type = typename super_t::template I<Args...>;
type<T, int> m;
Again, why does this not satisfy your requirements? (If there is still
something unclear, please give a code example as I did in my initial
examples).
About the alias template, as far as I know a using declaration can
also name a function, not only a type, so why would anything else
than a type in a template alias declaration be ill-formed ?
An alias declaration is not a using declaration, even though it uses
the same keyword "using". An alias-declaration is basically a typedef
and thus can only refer to types. In case of an alias template it can
also refer to a family of types, but that's all.
HTH & Greetings from Bremen,
Daniel Kr??gler
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