🚀 go-pugleaf

Max Motovilov <max@int.com> writes:

>Basically the question is in the subject. I looked through the Sept. draft and haven't
>found anything against it (since typedef is a class-name if it names a class).

That is correct. You can use a typedef name that names a class anywhere
a class name is needed.

>But a
>friend of mine told me that he saw some [authoritative] objections to it in this 
>newsgroup.

You have the usual rules of scope and accessibility, and you can't use
a typedef name as the name of a constructor or destructor, but I don't
know of any other restrictions offhand.

>In particular I'm interested if it does apply to member typedefs, esp. of
>template classes (is the following code legal?):

>template <class p>
>class     A
>{
>	...........
>public:
>	typedef	A<p>	Object;
>	...........
>};

>class	B	{ ....... };

>class	C : public A<B>::Object   { .......  };

I believe that code is legal, if obscure. I wouldn't be surprised to
find compilers (not to mention human readers) confused by it.
--
Steve Clamage, stephen.clamage@eng.sun.com


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