Thread: <list> iterators with nested templates

Having trouble declaring a class member which is an iterator.
Problem seems to be something to do with nesting of templatisation.
Tried various experiments, and alot of googling, but to no avail.

Here's the problem...

Code:

  template <typename MyTypeOne>
  class MyInnerClass {
  public:
    MyTypeOne theData;
  };

  
  template <typename MyTypeTwo>
  class MyOuterClass {
  public:

  list < MyInnerClass<MyTypeTwo> > theListMember;
  // this line compiles ok

  list <int>::iterator theSimpleIterMember;
  // this line compiles ok

  list <MyInnerClass<MyTypeTwo> >::iterator theNestingIterMember;
  // this line causes the compiler to generate the following error...
  // error: expected `;' before "theNestingIterMember"
  // my compiler is g++

Can anybody shed some light on this?

Regards,
Doug W

it works fine under msvc++6

Code:

//try this:
template<class MyTypeOne>
class Aclass
{
void foo();
//code
};
template<class MyTypeOne>
void Aclass::foo()
{
//code
}

That only compiles as:

Code:

//try this:
template<class MyTypeOne>
class Aclass
{
void foo();
//code
};


template<class MyTypeOne>
void Aclass<MyTypeOne>::foo()
// note addition of "<MyTypeOne>"
{
//code
}

But I'm not sure how that helps with the iterator-specific issue
(excuse me if I've missed thepoint)

It should be:

Code:

typename list <MyInnerClass<MyTypeTwo> >::iterator theNestingIterMember;

VC++ 7.1 requires typename also.