I know it is legal to do the following:

template <class T> class Foo;
typedef Foo< int > Bar;

In other words, using typedef to create an instantiation of a template,
and give it a name.

But is it legal (it don't work under GCC 2.7.2) to rename a template using
typedef?  And if it isn't, has this feature ever been considered?B

template <class T> class Foo;
template <class T> typedef Foo<T> Bar<T>;
typedef Bar< int >; // instantiate Bar< int >, which is really Foo< int >

Or even, God forbid:

template <class T> typedef Pointer< T> T*;

(I say "good forbid" because templates instantiations are usually classes
r functions, and a plain vanilla pointer ain't neither.......)


Scott "Geez, I'm full of annoying language extension proposals, ain't I"
Johnson


--
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>>>>> "SJ" == Scott Johnson <sj@aracnet.com> writes:
[...]
SJ> But is it legal (it don't work under GCC 2.7.2) to rename a template using
SJ> typedef?  And if it isn't, has this feature ever been considered?B

SJ> template <class T> class Foo;
SJ> template <class T> typedef Foo<T> Bar<T>;
SJ> typedef Bar< int >; // instantiate Bar< int >, which is really Foo< int >

SJ> Or even, God forbid:

SJ> template <class T> typedef Pointer< T> T*;

Unfortunately not; typedef templates are not part of the
C++ language (yet; and almost certainly won't be part of
the first standard).

 Daveed


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