Templated class declaration

[Steve:]

Hi,

With a normal class, I can do the following:

---
class Foo;

void func( Foo* param );

class Foo
{
//defined here
};
---
How do I declare a templated class before the actual definition?

---
class WStr; // Does not work, the compiler complains about
redifinition.

void func( WStr* param );

template< class T >
class Tmpl
{
//defined here
T* t;
};

typedef Tmpl< char WStr;
---
Thank you,

Steve

[Victor Bazarov]

Steve: wrote:

Hi,

With a normal class, I can do the following:

---
class Foo;

void func( Foo* param );

class Foo
{
//defined here
};
---
How do I declare a templated class before the actual definition?

---
class WStr; // Does not work, the compiler complains about
redifinition.

template<class Tclass Tmpl;

>
void func( WStr* param );

If this is a concrete function (with a certain template specialisation
as the argument type), then do

void func( Tmpl<char>* param );

If it does not work for you, maybe you can put the declaration after
the definition of 'Tmpl' class.

>
template< class T >
class Tmpl
{
//defined here
T* t;
};

typedef Tmpl< char WStr;
---

V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask