can't use typedef of nested class in template class

following doesn't work (gcc-3.4.4)
template <class Result>
class MyClass
{
private:
class NestedClass
{
public:
typedef int SubType;
} ;
NestedClass::SubType element;
} ;
#include "test2.h"
In file included from test2.cc:1:
test2.h:12: error: expected `;' before "element"


When i move NestedClass out, it works:

|padsol05 371cat test2.h
class NestedClass
{
public:
typedef int SubType;
} ;

template <class Result>
class MyClass
{
private:
NestedClass::SubType element;
} ;


???

re: can't use typedef of nested class in template class

Frank Bergemann wrote:You have to tell the compiler NestedClass::SubType is a type:

typename NestedClass::SubType element;

--
Ian Collins.

re: can't use typedef of nested class in template class

On Dec 12, 2:27 am, Ian Collins <ian-n...@hotmail.comwrote:The given example works in Comeau and the FAQ only talks about
nested classes defined in a base class (35.18). As far as I
know, because NestedClass is not a template, there is no need
to do this, although I may be wrong.

--
Jonathan Mcdougall

re: can't use typedef of nested class in template class

On Dec 12, 8:27 am, Ian Collins <ian-n...@hotmail.comwrote:You shouldn't have to. NestedClass is not a dependent type, but
rather a locally defined type, so the compiler knows what is in
it, even without instantiating the template.

--
James Kanze (GABI Software) email:james.kanze@gmail.com
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re: can't use typedef of nested class in template class

- thanks, Ian!
it worked this way.

rgds!

Frank

re: can't use typedef of nested class in template class

James Kanze wrote:I know, but gcc thinks otherwise!

--
Ian Collins.